{"id":18689,"date":"2026-05-28T13:06:28","date_gmt":"2026-05-28T13:06:28","guid":{"rendered":"https:\/\/oudianvalve.com\/?p=18689"},"modified":"2026-05-28T13:06:28","modified_gmt":"2026-05-28T13:06:28","slug":"globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection","status":"publish","type":"post","link":"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/","title":{"rendered":"\u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 Cv \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430: \u043f\u043e\u0447\u0435\u043c\u0443 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443 \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u0430."},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u041e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u044c<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Introduction\" >\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#What_Is_a_Globe_Valve\" >\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0437\u0430\u043f\u043e\u0440\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Understanding_Pressure_Drop_in_Globe_Valves\" >\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u044f \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u0430\u0445<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#What_Is_Cv_Flow_Coefficient\" >\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 Cv (\u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u0430)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Why_Globe_Valves_Have_Lower_Cv_Values\" >\u041f\u043e\u0447\u0435\u043c\u0443 \u0443 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Cv?<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#1_Tortuous_Flow_Path\" >1. \u0418\u0437\u0432\u0438\u043b\u0438\u0441\u0442\u044b\u0439 \u043f\u0443\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#2_Restricted_Seat_Opening\" >2. \u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u0430\u044f \u0448\u0438\u0440\u0438\u043d\u0430 \u0441\u0438\u0434\u0435\u043d\u044c\u044f.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#3_Flow_Obstruction\" >3. \u041f\u0440\u0435\u043f\u044f\u0442\u0441\u0442\u0432\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#The_Relationship_Between_Pressure_Drop_and_Valve_Performance\" >\u0412\u0437\u0430\u0438\u043c\u043e\u0441\u0432\u044f\u0437\u044c \u043c\u0435\u0436\u0434\u0443 \u043f\u0430\u0434\u0435\u043d\u0438\u0435\u043c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d\u0430<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Stable_Flow_Control\" >\u0421\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u043e\u043c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Excessive_Energy_Consumption\" >\u0427\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0435 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435 \u044d\u043d\u0435\u0440\u0433\u0438\u0438<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Cavitation_and_Flashing_Risks\" >\u0420\u0438\u0441\u043a\u0438 \u043a\u0430\u0432\u0438\u0442\u0430\u0446\u0438\u0438 \u0438 \u0438\u0441\u043f\u0430\u0440\u0435\u043d\u0438\u044f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#How_to_Select_the_Right_Globe_Valve_Cv\" >\u041a\u0430\u043a \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0448\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d CV<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Step_1_Determine_Process_Conditions\" >\u0428\u0430\u0433 1: \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Step_2_Calculate_Required_Cv\" >\u0428\u0430\u0433 2: \u0420\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0439\u0442\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u043c\u043e\u0435 \u0440\u0435\u0437\u044e\u043c\u0435.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Step_3_Avoid_Oversized_Valves\" >\u0428\u0430\u0433 3: \u0418\u0437\u0431\u0435\u0433\u0430\u0439\u0442\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Step_4_Consider_Future_Operating_Conditions\" >\u0428\u0430\u0433 4: \u0423\u0447\u0438\u0442\u044b\u0432\u0430\u0439\u0442\u0435 \u0431\u0443\u0434\u0443\u0449\u0438\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Comparing_Globe_Valves_with_Other_Valve_Types\" >\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0442\u0438\u043f\u0430\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Applications_Where_Pressure_Drop_Is_Acceptable\" >\u041e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0433\u0434\u0435 \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u043e \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Tips_for_Minimizing_Unnecessary_Pressure_Loss\" >\u0421\u043e\u0432\u0435\u0442\u044b \u043f\u043e \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043d\u0435\u043d\u0443\u0436\u043d\u044b\u0445 \u043f\u043e\u0442\u0435\u0440\u044c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Choose_the_Correct_Valve_Pattern\" >\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0443\u044e \u0441\u0445\u0435\u043c\u0443 \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Use_Proper_Pipe_Sizing\" >\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0442\u0440\u0443\u0431\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u0430.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Avoid_Excessive_Throttling\" >\u0418\u0437\u0431\u0435\u0433\u0430\u0439\u0442\u0435 \u0447\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0433\u043e \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0434\u0432\u0438\u0433\u0430\u0442\u0435\u043b\u044f.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Select_Advanced_Trim_Designs\" >\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u043e\u0442\u0434\u0435\u043b\u043a\u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u043e\u0439 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Conclusion\" >\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#Frequently_Asked_Questions_About_Globe_Valve_Pressure_Drop_and_Cv\" >\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u043e \u043f\u0430\u0434\u0435\u043d\u0438\u0438 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0435 \u043f\u043e\u043b\u0435\u0437\u043d\u043e\u0433\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f (CV) \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#1_What_is_pressure_drop_in_a_globe_valve\" >1. \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#2_Why_do_globe_valves_have_higher_pressure_drop_than_other_valves\" >2. \u041f\u043e\u0447\u0435\u043c\u0443 \u0443 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u043f\u0435\u0440\u0435\u043f\u0430\u0434 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u044b\u0448\u0435, \u0447\u0435\u043c \u0443 \u0434\u0440\u0443\u0433\u0438\u0445 \u0442\u0438\u043f\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#3_What_does_Cv_mean_in_valve_sizing\" >3. \u0427\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 Cv \u043f\u0440\u0438 \u0440\u0430\u0441\u0447\u0435\u0442\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#4_Why_is_Cv_important_when_selecting_a_globe_valve\" >4. \u041f\u043e\u0447\u0435\u043c\u0443 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Cv \u0432\u0430\u0436\u043d\u043e \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#5_How_do_you_calculate_Cv_for_a_globe_valve\" >5. \u041a\u0430\u043a \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u0438 (Cv) \u0434\u043b\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#6_Is_a_higher_Cv_always_better\" >6. \u0412\u0441\u0435\u0433\u0434\u0430 \u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0432\u0430\u0440\u0438\u0430\u0446\u0438\u0438 (Cv) \u043b\u0443\u0447\u0448\u0435?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#7_What_happens_if_the_pressure_drop_is_too_high\" >7. \u0427\u0442\u043e \u043f\u0440\u043e\u0438\u0437\u043e\u0439\u0434\u0435\u0442, \u0435\u0441\u043b\u0438 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u0443\u0434\u0435\u0442 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u043e\u043b\u044c\u0448\u0438\u043c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#8_What_is_cavitation_in_a_globe_valve\" >8. \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043a\u0430\u0432\u0438\u0442\u0430\u0446\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#9_Are_globe_valves_good_for_throttling_applications\" >9. \u041f\u043e\u0434\u0445\u043e\u0434\u044f\u0442 \u043b\u0438 \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#10_Which_globe_valve_design_has_the_lowest_pressure_drop\" >10. \u041a\u0430\u043a\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043d\u0430\u0438\u043c\u0435\u043d\u044c\u0448\u0435\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#11_How_does_valve_size_affect_pressure_drop\" >11. \u041a\u0430\u043a \u0440\u0430\u0437\u043c\u0435\u0440 \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#12_Can_globe_valves_be_used_for_onoff_service\" >12. \u041c\u043e\u0436\u043d\u043e \u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u0432\u0435\u043d\u0442\u0438\u043b\u0438 \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430 \u0432\u043e\u0434\u044b?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#13_What_industries_commonly_use_globe_valves\" >13. \u0412 \u043a\u0430\u043a\u0438\u0445 \u043e\u0442\u0440\u0430\u0441\u043b\u044f\u0445 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#14_How_can_pressure_drop_be_reduced_in_globe_valve_systems\" >14. \u041a\u0430\u043a \u043c\u043e\u0436\u043d\u043e \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442\u044c \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u0448\u0430\u0440\u043e\u0432\u044b\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u0430\u043c\u0438?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/oudianvalve.com\/ru\/2026\/05\/globe-valve-pressure-drop-and-cv-why-flow-resistance-matters-in-valve-selection\/#15_What_is_the_ideal_operating_position_for_a_globe_valve\" >15. \u041a\u0430\u043a\u043e\u0435 \u0440\u0430\u0431\u043e\u0447\u0435\u0435 \u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0438\u0434\u0435\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u043b\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0412 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430\u043c\u0438 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438 \u0432\u044b\u0431\u043e\u0440 \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u2014 \u044d\u0442\u043e \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u0431\u043e\u043b\u044c\u0448\u0435, \u0447\u0435\u043c \u043f\u0440\u043e\u0441\u0442\u043e \u0432\u044b\u0431\u043e\u0440 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0438\u043b\u0438 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f. \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0442\u0430\u043a\u0436\u0435 \u0434\u043e\u043b\u0436\u043d\u044b \u043e\u0446\u0435\u043d\u0438\u0442\u044c, \u043a\u0430\u043a \u043a\u043b\u0430\u043f\u0430\u043d \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443, \u044d\u043d\u0435\u0440\u0433\u043e\u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435 \u0438 \u043e\u0431\u0449\u0443\u044e \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430. \u0421\u0440\u0435\u0434\u0438 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430 \u0442\u0438\u043f\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u0432 \u0442\u0440\u0443\u0431\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0448\u0438\u0440\u043e\u043a\u043e \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b \u0441\u0432\u043e\u0438\u043c\u0438 \u043f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430\u043c\u0438 \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u0442\u043e\u0447\u043d\u044b\u043c \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u043e\u0442\u043e\u043a\u0430. \u041e\u0434\u043d\u0430\u043a\u043e \u043e\u043d\u0438 \u0442\u0430\u043a\u0436\u0435 \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432.<\/p>\n<p class=\"isSelectedEnd\">\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0432\u0437\u0430\u0438\u043c\u043e\u0441\u0432\u044f\u0437\u0438 \u043c\u0435\u0436\u0434\u0443 \u043f\u0435\u0440\u0435\u043f\u0430\u0434\u043e\u043c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u043e\u043c \u0440\u0430\u0441\u0445\u043e\u0434\u0430 (Cv) \u0438\u043c\u0435\u0435\u0442 \u0432\u0430\u0436\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0437\u0430\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u0434\u043b\u044f \u043b\u044e\u0431\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f. \u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u0431\u043e\u0440 \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0447\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u044b\u043c \u043f\u043e\u0442\u0435\u0440\u044f\u043c \u044d\u043d\u0435\u0440\u0433\u0438\u0438, \u043d\u0435\u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f, \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044e \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0440\u0430\u0441\u0445\u043e\u0434\u043e\u0432 \u0438 \u043f\u0440\u0435\u0436\u0434\u0435\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u043c\u0443 \u0438\u0437\u043d\u043e\u0441\u0443 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f.<\/p>\n<p class=\"isSelectedEnd\">\u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f, \u043a\u0430\u043a \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443, \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442\u0441\u044f \u0432\u0430\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 Cv \u0438 \u043e\u0431\u0441\u0443\u0436\u0434\u0430\u0435\u0442\u0441\u044f, \u043f\u043e\u0447\u0435\u043c\u0443 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u043c\u0435\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u0430.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"What_Is_a_Globe_Valve\"><\/span>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0437\u0430\u043f\u043e\u0440\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<figure id=\"attachment_18670\" aria-describedby=\"caption-attachment-18670\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-18670\" src=\"https:\/\/oudianvalve.com\/wp-content\/uploads\/2026\/05\/CF8-Y-Type-Globe-Valve-5-Inch-Handwheel-PN64-RF-End-300x300.jpg\" alt=\"china CF8 Y Type Globe Valve,\" width=\"300\" height=\"300\" \/><figcaption id=\"caption-attachment-18670\" class=\"wp-caption-text\">\u0428\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d \u0442\u0438\u043f\u0430 Y CF8<\/figcaption><\/figure>\n<p class=\"isSelectedEnd\">\u0417\u0430\u043f\u043e\u0440\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d \u2014 \u044d\u0442\u043e \u043a\u043b\u0430\u043f\u0430\u043d \u0441 \u043b\u0438\u043d\u0435\u0439\u043d\u044b\u043c \u043f\u0435\u0440\u0435\u043c\u0435\u0449\u0435\u043d\u0438\u0435\u043c, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0432 \u043f\u0435\u0440\u0432\u0443\u044e \u043e\u0447\u0435\u0440\u0435\u0434\u044c \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430. \u0415\u0433\u043e \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044f\u044f \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u0437\u0430\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u044c \u043c\u0435\u043d\u044f\u0442\u044c \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u0440\u043f\u0443\u0441 \u043a\u043b\u0430\u043f\u0430\u043d\u0430, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044f \u0442\u043e\u0447\u043d\u043e\u0435 \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u043f\u043e\u0442\u043e\u043a\u0430.<\/p>\n<p class=\"isSelectedEnd\">\u041a \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:<\/p>\n<ul data-spread=\"false\">\n<li>\u0411\u043b\u043e\u043a \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432<\/li>\n<li>\u041a\u0430\u043f\u043e\u0442<\/li>\n<li>\u0414\u0438\u0441\u043a \u0438\u043b\u0438 \u0437\u0430\u0433\u043b\u0443\u0448\u043a\u0430<\/li>\n<li>\u041a\u043e\u043b\u044c\u0446\u043e \u0441\u0438\u0434\u0435\u043d\u044c\u044f<\/li>\n<li>\u041a\u043e\u0440\u0435\u043d\u044c<\/li>\n<li>\u0418\u0441\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0438\u043b\u0438 \u043c\u0430\u0445\u043e\u0432\u0438\u043a<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">\u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0437\u0430\u0434\u0432\u0438\u0436\u0435\u043a, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u043a\u0440\u044b\u0442\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430, \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u0432\u0435\u043d\u0442\u0438\u043b\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u044b \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0435\u0436\u0438\u043c\u0430 \u0440\u0430\u0431\u043e\u0442\u044b. \u041e\u043d\u0438 \u0448\u0438\u0440\u043e\u043a\u043e \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432:<\/p>\n<figure id=\"attachment_18489\" aria-describedby=\"caption-attachment-18489\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-18489\" src=\"https:\/\/oudianvalve.com\/wp-content\/uploads\/2025\/06\/2505-Gate-Valve-3-Inch-API-600-600-LB-RF-300x300.jpg\" alt=\"2505 Gate Valve Manufacture, 3 Inch 2505 Gate Valve, API 600 2505 Gate Valve, 600 LB 2505 Gate Valve, RF 2505 Gate Valve\" width=\"300\" height=\"300\" \/><figcaption id=\"caption-attachment-18489\" class=\"wp-caption-text\">\u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0434\u0432\u0438\u0436\u0435\u043a 2505, \u0437\u0430\u0434\u0432\u0438\u0436\u043a\u0430 2505 \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u043e\u043c 3 \u0434\u044e\u0439\u043c\u0430, \u0437\u0430\u0434\u0432\u0438\u0436\u043a\u0430 API 600 2505, \u0437\u0430\u0434\u0432\u0438\u0436\u043a\u0430 2505 \u043d\u0430 600 \u0444\u0443\u043d\u0442\u043e\u0432, \u0437\u0430\u0434\u0432\u0438\u0436\u043a\u0430 RF 2505.<\/figcaption><\/figure>\n<ul data-spread=\"false\">\n<li>\u041f\u0430\u0440\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n<li>\u0422\u0440\u0443\u0431\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u044b \u043e\u0445\u043b\u0430\u0436\u0434\u0430\u044e\u0449\u0435\u0439 \u0432\u043e\u0434\u044b<\/li>\n<li>\u0425\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0435 \u0437\u0430\u0432\u043e\u0434\u044b<\/li>\n<li>\u041d\u0435\u0444\u0442\u0435\u0433\u0430\u0437\u043e\u0432\u044b\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u044b<\/li>\n<li>\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0432\u044b\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u0438<\/li>\n<li>\u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u0442\u043e\u043f\u043b\u0435\u043d\u0438\u044f, \u0432\u0435\u043d\u0442\u0438\u043b\u044f\u0446\u0438\u0438 \u0438 \u043a\u043e\u043d\u0434\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u043e\u0437\u0434\u0443\u0445\u0430 (HVAC).<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">\u0418\u0437-\u0437\u0430 \u0441\u0432\u043e\u0435\u0439 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u043f\u0440\u043e\u0442\u043e\u043a \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438, \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b, \u0435\u0441\u0442\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e, \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u0431\u043e\u043b\u044c\u0448\u0435\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Understanding_Pressure_Drop_in_Globe_Valves\"><\/span>\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u044f \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u0430\u0445<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u2014 \u044d\u0442\u043e \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u0435\u0451 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 \u043a\u043b\u0430\u043f\u0430\u043d. \u041e\u043d\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0438\u0437-\u0437\u0430 \u0442\u043e\u0433\u043e, \u0447\u0442\u043e \u043a\u043b\u0430\u043f\u0430\u043d \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u0438 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u043f\u043e\u0442\u043e\u043a, \u0432\u044b\u0437\u044b\u0432\u0430\u044f \u0442\u0440\u0435\u043d\u0438\u0435 \u0438 \u0442\u0443\u0440\u0431\u0443\u043b\u0435\u043d\u0442\u043d\u043e\u0441\u0442\u044c.<\/p>\n<p class=\"isSelectedEnd\">\u0412 \u0448\u0430\u0440\u043e\u0432\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u044c \u043e\u0431\u044b\u0447\u043d\u043e \u043c\u0435\u043d\u044f\u0435\u0442 \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0440\u0430\u0437:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li>\u0412\u0445\u043e\u0434 \u0432 \u043a\u043e\u0440\u043f\u0443\u0441 \u043a\u043b\u0430\u043f\u0430\u043d\u0430<\/li>\n<li>\u041f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u0432\u0435\u0440\u0441\u0442\u0438\u0435 \u0441\u0438\u0434\u0435\u043d\u044c\u044f<\/li>\n<li>\u0412\u044b\u0435\u0437\u0434 \u0447\u0435\u0440\u0435\u0437 \u0435\u0449\u0435 \u043e\u0434\u0438\u043d \u043f\u043e\u0432\u043e\u0440\u043e\u0442 \u0432 \u0434\u0440\u0443\u0433\u043e\u043c \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0438.<\/li>\n<\/ol>\n<p class=\"isSelectedEnd\">\u042d\u0442\u0438 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u0442\u0443\u0440\u0431\u0443\u043b\u0435\u043d\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u043f\u043e\u0442\u0435\u0440\u0438 \u044d\u043d\u0435\u0440\u0433\u0438\u0438, \u0447\u0442\u043e \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0431\u043e\u043b\u044c\u0448\u0435\u043c\u0443 \u043f\u0430\u0434\u0435\u043d\u0438\u044e \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0442\u0430\u043a\u0438\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u0430\u043c\u0438, \u043a\u0430\u043a \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u0438\u043b\u0438 \u0437\u0430\u0434\u0432\u0438\u0436\u043d\u044b\u0435.<\/p>\n<p class=\"isSelectedEnd\">\u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n<p class=\"isSelectedEnd\">\u0394P = P_1 \u2013 P_2<\/p>\n<p class=\"isSelectedEnd\">\u0413\u0434\u0435:<\/p>\n<ul data-spread=\"false\">\n<li>\u0394P = \u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>P\u2081 = \u0414\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043d\u0430 \u0432\u0445\u043e\u0434\u0435<\/li>\n<li>P\u2082 = \u0414\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043d\u0430 \u0432\u044b\u0445\u043e\u0434\u0435<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">\u0427\u0435\u043c \u0431\u043e\u043b\u044c\u0448\u0435 \u043f\u0435\u0440\u0435\u043f\u0430\u0434 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f, \u0442\u0435\u043c \u0431\u043e\u043b\u044c\u0448\u0435 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438 \u043d\u0430\u0441\u043e\u0441\u0430 \u0438\u043b\u0438 \u044d\u043d\u0435\u0440\u0433\u0438\u0438 \u043a\u043e\u043c\u043f\u0440\u0435\u0441\u0441\u043e\u0440\u0430 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u044f \u0436\u0435\u043b\u0430\u0435\u043c\u043e\u0433\u043e \u0440\u0430\u0441\u0445\u043e\u0434\u0430.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"What_Is_Cv_Flow_Coefficient\"><\/span>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 Cv (\u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u0430)?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u041a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u0430 (Cv) \u2014 \u043e\u0434\u0438\u043d \u0438\u0437 \u0432\u0430\u0436\u043d\u0435\u0439\u0448\u0438\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043f\u0440\u0438 \u0440\u0430\u0441\u0447\u0435\u0442\u0435 \u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432. \u041e\u043d \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442, \u043a\u0430\u043a\u043e\u0439 \u043e\u0431\u044a\u0435\u043c \u043f\u043e\u0442\u043e\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u043e\u0439\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 \u043a\u043b\u0430\u043f\u0430\u043d \u043f\u0440\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445.<\/p>\n<p class=\"isSelectedEnd\">\u041f\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044e:<\/p>\n<blockquote>\n<p class=\"isSelectedEnd\">Cv \u2014 \u044d\u0442\u043e \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0430\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u0438\u0445 \u0433\u0430\u043b\u043b\u043e\u043d\u043e\u0432 \u0432\u043e\u0434\u044b \u0432 \u043c\u0438\u043d\u0443\u0442\u0443, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u043e\u0439\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 \u043a\u043b\u0430\u043f\u0430\u043d \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u043f\u0430\u0434\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 1 psi \u043f\u0440\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0435 60\u00b0F.<\/p>\n<\/blockquote>\n<p class=\"isSelectedEnd\">\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u0441\u043e\u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0435 \u0442\u0430\u043a\u043e\u0432\u043e:<\/p>\n<p class=\"isSelectedEnd\">Q = C_v \\sqrt{\\frac{\\Delta P}{SG}}<\/p>\n<p class=\"isSelectedEnd\">\u0413\u0434\u0435:<\/p>\n<ul data-spread=\"false\">\n<li>Q = \u0421\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430<\/li>\n<li>Cv = \u041a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u0430<\/li>\n<li>\u0394P = \u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>SG = \u0443\u0434\u0435\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u044c \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">\u0411\u043e\u043b\u044c\u0448\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Cv \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u043a\u043b\u0430\u043f\u0430\u043d \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442 \u0431\u043e\u043b\u044c\u0448\u0438\u0439 \u043f\u043e\u0442\u043e\u043a \u0441 \u043c\u0435\u043d\u044c\u0448\u0438\u043c \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435\u043c.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Why_Globe_Valves_Have_Lower_Cv_Values\"><\/span>\u041f\u043e\u0447\u0435\u043c\u0443 \u0443 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Cv?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0448\u0430\u0440\u043e\u0432\u044b\u043c\u0438 \u0438\u043b\u0438 \u043f\u043e\u0432\u043e\u0440\u043e\u0442\u043d\u044b\u043c\u0438 \u0437\u0430\u0442\u0432\u043e\u0440\u0430\u043c\u0438, <a href=\"https:\/\/oudianvalve.com\/ru\/product-category\/globe-valves\/\">\u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b<\/a> \u041a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u043e, \u043e\u043d\u0438 \u0438\u043c\u0435\u044e\u0442 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u0438\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Cv \u043f\u0440\u0438 \u0442\u043e\u043c \u0436\u0435 \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u0435 \u0442\u0440\u0443\u0431\u044b. \u042d\u0442\u043e \u0441\u0432\u044f\u0437\u0430\u043d\u043e \u0441 \u0438\u0445 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u0435\u0439.<\/p>\n<p class=\"isSelectedEnd\">\u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u043e\u0432 \u0441\u043f\u043e\u0441\u043e\u0431\u0441\u0442\u0432\u0443\u044e\u0442 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044e \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0430 \u0432\u0430\u0440\u0438\u0430\u0446\u0438\u0438 (Cv):<\/p>\n<h2><span class=\"ez-toc-section\" id=\"1_Tortuous_Flow_Path\"><\/span>1. \u0418\u0437\u0432\u0438\u043b\u0438\u0441\u0442\u044b\u0439 \u043f\u0443\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0416\u0438\u0434\u043a\u043e\u0441\u0442\u044c \u0434\u043e\u043b\u0436\u043d\u0430 \u043c\u0435\u043d\u044f\u0442\u044c \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0432\u043d\u0443\u0442\u0440\u0438 \u043a\u043e\u0440\u043f\u0443\u0441\u0430 \u043a\u043b\u0430\u043f\u0430\u043d\u0430, \u0447\u0442\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u0442\u0443\u0440\u0431\u0443\u043b\u0435\u043d\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u043f\u043e\u0442\u0435\u0440\u0438 \u043d\u0430 \u0442\u0440\u0435\u043d\u0438\u0435.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Restricted_Seat_Opening\"><\/span>2. \u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u0430\u044f \u0448\u0438\u0440\u0438\u043d\u0430 \u0441\u0438\u0434\u0435\u043d\u044c\u044f.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0420\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0441\u0438\u0434\u0435\u043d\u0438\u0439 \u0441\u0443\u0436\u0430\u0435\u0442 \u0437\u043e\u043d\u0443 \u043f\u043e\u0442\u043e\u043a\u0430, \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u044c\u043d\u043e\u0439 \u0437\u0430\u0441\u043b\u043e\u043d\u043a\u0438.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Flow_Obstruction\"><\/span>3. \u041f\u0440\u0435\u043f\u044f\u0442\u0441\u0442\u0432\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0417\u0430\u0433\u043b\u0443\u0448\u043a\u0430 \u0438 \u0441\u0435\u0434\u043b\u043e \u0447\u0430\u0441\u0442\u0438\u0447\u043d\u043e \u043e\u0441\u0442\u0430\u044e\u0442\u0441\u044f \u0432 \u043f\u043e\u0442\u043e\u043a\u0435 \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438, \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u044f \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435.<\/p>\n<p class=\"isSelectedEnd\">\u0412 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435, \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0436\u0435\u0440\u0442\u0432\u0443\u044e\u0442 \u0431\u043e\u043b\u044c\u0448\u0435\u0439 \u043f\u043e\u0442\u0435\u0440\u0435\u0439 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0440\u0430\u0434\u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"The_Relationship_Between_Pressure_Drop_and_Valve_Performance\"><\/span>\u0412\u0437\u0430\u0438\u043c\u043e\u0441\u0432\u044f\u0437\u044c \u043c\u0435\u0436\u0434\u0443 \u043f\u0430\u0434\u0435\u043d\u0438\u0435\u043c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d\u0430<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u0440\u0430\u0431\u043e\u0442\u0443 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432. \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0434\u043e\u043b\u0436\u043d\u044b \u043d\u0430\u0439\u0442\u0438 \u0431\u0430\u043b\u0430\u043d\u0441 \u043c\u0435\u0436\u0434\u0443 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c\u044e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u044d\u043d\u0435\u0440\u0433\u043e\u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435\u043c.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Stable_Flow_Control\"><\/span>\u0421\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u043e\u043c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0423\u043c\u0435\u0440\u0435\u043d\u043d\u043e\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0430 \u0437\u0430\u043f\u043e\u0440\u043d\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435 \u0443\u043b\u0443\u0447\u0448\u0430\u0435\u0442 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u043e\u0441\u0442\u044c \u0438 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430. \u0418\u043c\u0435\u043d\u043d\u043e \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0437\u0430\u043f\u043e\u0440\u043d\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u043f\u0440\u0435\u0434\u043f\u043e\u0447\u0442\u0438\u0442\u0435\u043b\u044c\u043d\u044b \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n<p class=\"isSelectedEnd\">\u041f\u0440\u0438 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u043c \u043f\u0430\u0434\u0435\u043d\u0438\u0438 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f:<\/p>\n<ul data-spread=\"false\">\n<li>\u0420\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u0441\u0442\u0430\u0442\u044c \u043d\u0435\u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u043c.<\/li>\n<li>\u041a\u043b\u0430\u043f\u0430\u043d \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0432 \u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0438, \u0431\u043b\u0438\u0437\u043a\u043e\u043c \u043a \u0437\u0430\u043a\u0440\u044b\u0442\u043e\u043c\u0443.<\/li>\n<li>\u041d\u0435\u0431\u043e\u043b\u044c\u0448\u0438\u0435 \u0434\u0432\u0438\u0436\u0435\u043d\u0438\u044f \u0441\u0442\u0435\u0431\u043b\u044f \u043c\u043e\u0433\u0443\u0442 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043a\u043e\u043b\u0435\u0431\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Excessive_Energy_Consumption\"><\/span>\u0427\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0435 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435 \u044d\u043d\u0435\u0440\u0433\u0438\u0438<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0427\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043d\u0430 \u043d\u0430\u0441\u043e\u0441 \u0438\u043b\u0438 \u043a\u043e\u043c\u043f\u0440\u0435\u0441\u0441\u043e\u0440, \u0447\u0442\u043e \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f\u043c:<\/p>\n<ul data-spread=\"false\">\n<li>\u0411\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0435 \u0437\u0430\u0442\u0440\u0430\u0442\u044b \u043d\u0430 \u044d\u043d\u0435\u0440\u0433\u0438\u044e<\/li>\n<li>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n<li>\u041f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u044b\u0439 \u0438\u0437\u043d\u043e\u0441 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cavitation_and_Flashing_Risks\"><\/span>\u0420\u0438\u0441\u043a\u0438 \u043a\u0430\u0432\u0438\u0442\u0430\u0446\u0438\u0438 \u0438 \u0438\u0441\u043f\u0430\u0440\u0435\u043d\u0438\u044f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u041f\u0440\u0438 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u044b\u0441\u0442\u0440\u043e\u043c \u043f\u0430\u0434\u0435\u043d\u0438\u0438 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043d\u0443\u0442\u0440\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u043c\u043e\u0433\u0443\u0442 \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u0438 \u0441 \u0441\u0438\u043b\u043e\u0439 \u0441\u0445\u043b\u043e\u043f\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u0443\u0437\u044b\u0440\u044c\u043a\u0438 \u0436\u0438\u0434\u043a\u043e\u0433\u043e \u043f\u0430\u0440\u0430.<\/p>\n<p class=\"isSelectedEnd\">\u042d\u0442\u043e \u044f\u0432\u043b\u0435\u043d\u0438\u0435, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0435 \u043a\u0430\u043a \u043a\u0430\u0432\u0438\u0442\u0430\u0446\u0438\u044f, \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c:<\/p>\n<ul data-spread=\"false\">\n<li>\u0428\u0443\u043c<\/li>\n<li>\u0412\u0438\u0431\u0440\u0430\u0446\u0438\u044f<\/li>\n<li>\u041f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435 \u0441\u0438\u0434\u0435\u043d\u044c\u044f<\/li>\n<li>\u0421\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u0441\u0440\u043e\u043a\u0430 \u0441\u043b\u0443\u0436\u0431\u044b \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">\u041f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u0434\u0431\u043e\u0440 CV \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0441\u0432\u0435\u0441\u0442\u0438 \u044d\u0442\u0438 \u0440\u0438\u0441\u043a\u0438 \u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c\u0443.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"How_to_Select_the_Right_Globe_Valve_Cv\"><\/span>\u041a\u0430\u043a \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0448\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d CV<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u0412\u044b\u0431\u043e\u0440 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f Cv \u0438\u043c\u0435\u0435\u0442 \u0440\u0435\u0448\u0430\u044e\u0449\u0435\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u044f \u043a\u0430\u043a \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430, \u0442\u0430\u043a \u0438 \u044d\u043d\u0435\u0440\u0433\u043e\u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Step_1_Determine_Process_Conditions\"><\/span>\u0428\u0430\u0433 1: \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0421\u043e\u0431\u0438\u0440\u0430\u0439\u0442\u0435 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435:<\/p>\n<ul data-spread=\"false\">\n<li>\u0421\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430<\/li>\n<li>\u0412\u0445\u043e\u0434\u043d\u043e\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/li>\n<li>\u0412\u044b\u0445\u043e\u0434\u043d\u043e\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/li>\n<li>\u0422\u0438\u043f \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438<\/li>\n<li>\u0422\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430<\/li>\n<li>\u0420\u0430\u0437\u043c\u0435\u0440 \u0442\u0440\u0443\u0431\u044b<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Step_2_Calculate_Required_Cv\"><\/span>\u0428\u0430\u0433 2: \u0420\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0439\u0442\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u043c\u043e\u0435 \u0440\u0435\u0437\u044e\u043c\u0435.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u0443\u044e \u0444\u043e\u0440\u043c\u0443\u043b\u0443 Cv \u0434\u043b\u044f \u043e\u0446\u0435\u043d\u043a\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u043c\u043e\u0439 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u0430.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Step_3_Avoid_Oversized_Valves\"><\/span>\u0428\u0430\u0433 3: \u0418\u0437\u0431\u0435\u0433\u0430\u0439\u0442\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0417\u0430\u043f\u043e\u0440\u043d\u044b\u0435 \u0432\u0435\u043d\u0442\u0438\u043b\u0438 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0447\u0430\u0441\u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0432 \u0437\u0430\u043a\u0440\u044b\u0442\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438, \u0447\u0442\u043e \u0441\u043d\u0438\u0436\u0430\u0435\u0442 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043f\u043e\u0432\u044b\u0448\u0430\u0435\u0442 \u0440\u0438\u0441\u043a \u0432\u0438\u0431\u0440\u0430\u0446\u0438\u0438.<\/p>\n<p class=\"isSelectedEnd\">\u041a\u043b\u0430\u043f\u0430\u043d \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u043e\u0431\u044b\u0447\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u043f\u0440\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430\u0445 \u043e\u0442 20% \u0434\u043e 80% \u0432 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Step_4_Consider_Future_Operating_Conditions\"><\/span>\u0428\u0430\u0433 4: \u0423\u0447\u0438\u0442\u044b\u0432\u0430\u0439\u0442\u0435 \u0431\u0443\u0434\u0443\u0449\u0438\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0412 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u043c\u043e\u0433\u0443\u0442 \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u0442\u044c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043e\u0431\u044a\u0435\u043c\u0435 \u043f\u043e\u0442\u043e\u043a\u0430. \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u043e\u0446\u0435\u043d\u0438\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435:<\/p>\n<ul data-spread=\"false\">\n<li>\u0423\u0441\u043b\u043e\u0432\u0438\u044f \u0437\u0430\u043f\u0443\u0441\u043a\u0430<\/li>\n<li>\u0421\u0446\u0435\u043d\u0430\u0440\u0438\u0438 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430<\/li>\n<li>\u0420\u0430\u0431\u043e\u0442\u0430 \u043f\u0440\u0438 \u0447\u0430\u0441\u0442\u0438\u0447\u043d\u043e\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0435<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Comparing_Globe_Valves_with_Other_Valve_Types\"><\/span>\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0442\u0438\u043f\u0430\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432.<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<table>\n<tbody>\n<tr>\n<th>\u0422\u0438\u043f \u043a\u043b\u0430\u043f\u0430\u043d\u0430<\/th>\n<th>\u0421\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0443<\/th>\n<th>\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u0435 CV<\/th>\n<th>\u0420\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u043a\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438<\/th>\n<\/tr>\n<tr>\n<td>\u0428\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d<\/td>\n<td>\u0412\u044b\u0441\u043e\u043a\u0438\u0439<\/td>\n<td>\u041d\u0438\u0436\u0435<\/td>\n<td>\u041e\u0442\u043b\u0438\u0447\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<td>\u0428\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u043b\u0430\u043f\u0430\u043d<\/td>\n<td>\u041d\u0438\u0437\u043a\u0438\u0439<\/td>\n<td>\u0412\u044b\u0441\u043e\u043a\u0438\u0439<\/td>\n<td>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<td>\u0417\u0430\u0434\u0432\u0438\u0436\u043a\u0430<\/td>\n<td>\u041e\u0447\u0435\u043d\u044c \u043d\u0438\u0437\u043a\u0438\u0439<\/td>\n<td>\u041e\u0447\u0435\u043d\u044c \u0432\u044b\u0441\u043e\u043a\u0438\u0439<\/td>\n<td>\u0411\u0435\u0434\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<td>\u0414\u0440\u043e\u0441\u0441\u0435\u043b\u044c\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d<\/td>\n<td>\u0423\u043c\u0435\u0440\u0435\u043d\u043d\u044b\u0439<\/td>\n<td>\u0423\u043c\u0435\u0440\u0435\u043d\u043d\u044b\u0439 \u0434\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u0433\u043e<\/td>\n<td>\u0425\u043e\u0440\u043e\u0448\u0438\u0439<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"isSelectedEnd\">\u042d\u0442\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u043d\u0430\u0433\u043b\u044f\u0434\u043d\u043e \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u0443\u0435\u0442, \u043f\u043e\u0447\u0435\u043c\u0443 \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u043f\u0440\u0435\u0434\u043f\u043e\u0447\u0442\u0438\u0442\u0435\u043b\u044c\u043d\u044b \u0434\u043b\u044f \u0442\u043e\u0447\u043d\u043e\u0433\u043e \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0431\u043e\u043b\u044c\u0448\u0435\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Applications_Where_Pressure_Drop_Is_Acceptable\"><\/span>\u041e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0433\u0434\u0435 \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u043e \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">\u0412\u043e \u043c\u043d\u043e\u0433\u0438\u0445 \u043e\u0442\u0440\u0430\u0441\u043b\u044f\u0445 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0442\u043e\u0447\u043d\u043e\u0435 \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u0430 \u0432\u0430\u0436\u043d\u0435\u0435, \u0447\u0435\u043c \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u043e\u0442\u0435\u0440\u044c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n<p class=\"isSelectedEnd\">Typical globe valve applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Steam pressure reduction<\/li>\n<li>Boiler feedwater control<\/li>\n<li>Chemical dosing systems<\/li>\n<li>Cooling water regulation<\/li>\n<li>Fuel flow control<\/li>\n<li>HVAC balancing systems<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">In these systems, stable control performance outweighs the disadvantage of higher flow resistance.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Tips_for_Minimizing_Unnecessary_Pressure_Loss\"><\/span>\u0421\u043e\u0432\u0435\u0442\u044b \u043f\u043e \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043d\u0435\u043d\u0443\u0436\u043d\u044b\u0445 \u043f\u043e\u0442\u0435\u0440\u044c \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">Although globe valves inherently create pressure drop, engineers can reduce unnecessary losses through proper design.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Choose_the_Correct_Valve_Pattern\"><\/span>\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0443\u044e \u0441\u0445\u0435\u043c\u0443 \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Different globe valve body designs offer varying resistance levels:<\/p>\n<ul data-spread=\"false\">\n<li>Z-pattern: Highest pressure drop<\/li>\n<li>Y-pattern: Lower pressure drop<\/li>\n<li>Angle pattern: Moderate pressure drop<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Use_Proper_Pipe_Sizing\"><\/span>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0442\u0440\u0443\u0431\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u0430.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Undersized piping increases overall system resistance.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Avoid_Excessive_Throttling\"><\/span>\u0418\u0437\u0431\u0435\u0433\u0430\u0439\u0442\u0435 \u0447\u0440\u0435\u0437\u043c\u0435\u0440\u043d\u043e\u0433\u043e \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0434\u0432\u0438\u0433\u0430\u0442\u0435\u043b\u044f.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Operating continuously at nearly closed positions increases turbulence and wear.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Select_Advanced_Trim_Designs\"><\/span>\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u043e\u0442\u0434\u0435\u043b\u043a\u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u043e\u0439 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Modern low-noise and anti-cavitation trims can improve flow performance while protecting valve internals.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h1><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p class=\"isSelectedEnd\">Pressure drop and Cv are fundamental considerations in globe valve selection. While globe valves provide outstanding throttling accuracy and process control, they inherently create higher flow resistance due to their internal flow path design.<\/p>\n<p class=\"isSelectedEnd\">Understanding how Cv relates to pressure drop allows engineers to:<\/p>\n<ul data-spread=\"false\">\n<li>Improve system efficiency<\/li>\n<li>Achieve stable flow control<\/li>\n<li>Reduce energy consumption<\/li>\n<li>Prevent cavitation damage<\/li>\n<li>Extend equipment lifespan<\/li>\n<\/ul>\n<p>The best valve selection is always a balance between control precision, operating efficiency, and long-term reliability. By carefully evaluating pressure drop and Cv requirements, engineers can ensure optimal valve performance across a wide range of industrial applications.<\/p>\n<p>&nbsp;<\/p>\n<h1><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_About_Globe_Valve_Pressure_Drop_and_Cv\"><\/span>\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u043e \u043f\u0430\u0434\u0435\u043d\u0438\u0438 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0435 \u043f\u043e\u043b\u0435\u0437\u043d\u043e\u0433\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f (CV) \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"1_What_is_pressure_drop_in_a_globe_valve\"><\/span>1. \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Pressure drop is the difference between the inlet pressure and outlet pressure as fluid passes through a globe valve. It occurs because the valve restricts and redirects the flow, creating friction and turbulence inside the valve body.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"2_Why_do_globe_valves_have_higher_pressure_drop_than_other_valves\"><\/span>2. \u041f\u043e\u0447\u0435\u043c\u0443 \u0443 \u0448\u0430\u0440\u043e\u0432\u044b\u0445 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432 \u043f\u0435\u0440\u0435\u043f\u0430\u0434 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u044b\u0448\u0435, \u0447\u0435\u043c \u0443 \u0434\u0440\u0443\u0433\u0438\u0445 \u0442\u0438\u043f\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Globe valves force the fluid to change direction multiple times while flowing through the valve. This tortuous flow path increases resistance and energy loss, resulting in a higher pressure drop compared to ball valves, gate valves, or butterfly valves.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"3_What_does_Cv_mean_in_valve_sizing\"><\/span>3. \u0427\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 Cv \u043f\u0440\u0438 \u0440\u0430\u0441\u0447\u0435\u0442\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u043a\u043b\u0430\u043f\u0430\u043d\u043e\u0432?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Cv, or flow coefficient, measures a valve\u2019s flow capacity. It indicates how many gallons of water per minute can flow through the valve with a 1 psi pressure drop at 60\u00b0F.<\/p>\n<p class=\"isSelectedEnd\">A higher Cv value means the valve allows more flow with less resistance.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"4_Why_is_Cv_important_when_selecting_a_globe_valve\"><\/span>4. \u041f\u043e\u0447\u0435\u043c\u0443 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 Cv \u0432\u0430\u0436\u043d\u043e \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Cv helps engineers determine whether a valve can deliver the required flow rate under specific operating conditions. Selecting the correct Cv ensures:<\/p>\n<ul data-spread=\"false\">\n<li>Stable flow control<\/li>\n<li>Proper throttling performance<\/li>\n<li>Reduced energy consumption<\/li>\n<li>Lower risk of cavitation and vibration<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"5_How_do_you_calculate_Cv_for_a_globe_valve\"><\/span>5. \u041a\u0430\u043a \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u0438 (Cv) \u0434\u043b\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">The standard formula is:<\/p>\n<p class=\"isSelectedEnd\">Q = C_v \\sqrt{\\frac{\\Delta P}{SG}}<\/p>\n<p class=\"isSelectedEnd\">\u0413\u0434\u0435:<\/p>\n<ul data-spread=\"false\">\n<li>Q = \u0421\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u0430<\/li>\n<li>Cv = \u041a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0440\u0430\u0441\u0445\u043e\u0434\u0430<\/li>\n<li>\u0394P = \u041f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>SG = \u0443\u0434\u0435\u043b\u044c\u043d\u0430\u044f \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u044c \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u0438<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">This equation helps estimate the required valve size for a given application.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"6_Is_a_higher_Cv_always_better\"><\/span>6. \u0412\u0441\u0435\u0433\u0434\u0430 \u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0432\u0430\u0440\u0438\u0430\u0446\u0438\u0438 (Cv) \u043b\u0443\u0447\u0448\u0435?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">No. A higher Cv means lower resistance, but an oversized valve may reduce control accuracy and create unstable flow conditions. The best choice is a valve properly sized for the actual operating range.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"7_What_happens_if_the_pressure_drop_is_too_high\"><\/span>7. \u0427\u0442\u043e \u043f\u0440\u043e\u0438\u0437\u043e\u0439\u0434\u0435\u0442, \u0435\u0441\u043b\u0438 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u0443\u0434\u0435\u0442 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u043e\u043b\u044c\u0448\u0438\u043c?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Excessive pressure drop can cause:<\/p>\n<ul data-spread=\"false\">\n<li>\u0423\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u044d\u043d\u0435\u0440\u0433\u0438\u0438<\/li>\n<li>\u041f\u0435\u0440\u0435\u0433\u0440\u0443\u0437\u043a\u0430 \u043d\u0430\u0441\u043e\u0441\u0430<\/li>\n<li>\u0428\u0443\u043c \u0438 \u0432\u0438\u0431\u0440\u0430\u0446\u0438\u044f<\/li>\n<li>Cavitation damage<\/li>\n<li>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Proper valve sizing helps prevent these problems.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"8_What_is_cavitation_in_a_globe_valve\"><\/span>8. \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043a\u0430\u0432\u0438\u0442\u0430\u0446\u0438\u044f \u0432 \u0448\u0430\u0440\u043e\u0432\u043e\u043c \u043a\u043b\u0430\u043f\u0430\u043d\u0435?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Cavitation occurs when the fluid pressure drops below its vapor pressure, forming vapor bubbles that collapse violently inside the valve. This can damage valve trim, create noise, and shorten valve life.<\/p>\n<p class=\"isSelectedEnd\">Globe valves operating under high pressure drop conditions are more susceptible to cavitation.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"9_Are_globe_valves_good_for_throttling_applications\"><\/span>9. \u041f\u043e\u0434\u0445\u043e\u0434\u044f\u0442 \u043b\u0438 \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Yes. Globe valves are widely considered one of the best valve types for throttling and flow regulation because they provide precise control over flow rate and pressure.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"10_Which_globe_valve_design_has_the_lowest_pressure_drop\"><\/span>10. \u041a\u0430\u043a\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043d\u0430\u0438\u043c\u0435\u043d\u044c\u0448\u0435\u0435 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Among common globe valve designs:<\/p>\n<ul data-spread=\"false\">\n<li>Z-pattern globe valves have the highest pressure drop<\/li>\n<li>Y-pattern globe valves have lower pressure drop<\/li>\n<li>Angle globe valves offer moderate pressure loss<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Y-pattern globe valves are often selected when reduced flow resistance is important.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"11_How_does_valve_size_affect_pressure_drop\"><\/span>11. \u041a\u0430\u043a \u0440\u0430\u0437\u043c\u0435\u0440 \u043a\u043b\u0430\u043f\u0430\u043d\u0430 \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">A smaller valve opening increases fluid velocity and resistance, resulting in higher pressure drop. Proper valve sizing is essential to balance flow control and system efficiency.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"12_Can_globe_valves_be_used_for_onoff_service\"><\/span>12. \u041c\u043e\u0436\u043d\u043e \u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u0432\u0435\u043d\u0442\u0438\u043b\u0438 \u0434\u043b\u044f \u0440\u0435\u0433\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0442\u043e\u043a\u0430 \u0432\u043e\u0434\u044b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Yes, but they are primarily designed for throttling and regulating flow. For full open\/full close applications with minimal pressure loss, gate valves or ball valves are often more efficient choices.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"13_What_industries_commonly_use_globe_valves\"><\/span>13. \u0412 \u043a\u0430\u043a\u0438\u0445 \u043e\u0442\u0440\u0430\u0441\u043b\u044f\u0445 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0448\u0430\u0440\u043e\u0432\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">\u0428\u0430\u0440\u043e\u0432\u044b\u0435 \u0432\u0435\u043d\u0442\u0438\u043b\u0438 \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0432:<\/p>\n<ul data-spread=\"false\">\n<li>\u041d\u0435\u0444\u0442\u044c \u0438 \u0433\u0430\u0437<\/li>\n<li>\u0432\u044b\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u0438<\/li>\n<li>\u0425\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430<\/li>\n<li>\u041f\u0430\u0440\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n<li>\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0442\u043e\u043f\u043b\u0435\u043d\u0438\u044f, \u0432\u0435\u043d\u0442\u0438\u043b\u044f\u0446\u0438\u0438 \u0438 \u043a\u043e\u043d\u0434\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u043e\u0437\u0434\u0443\u0445\u0430<\/li>\n<li>\u0432\u043e\u0434\u043e\u043e\u0447\u0438\u0441\u0442\u043d\u044b\u0435 \u0441\u043e\u043e\u0440\u0443\u0436\u0435\u043d\u0438\u044f<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">They are especially useful where accurate flow control is required.<\/p>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"14_How_can_pressure_drop_be_reduced_in_globe_valve_systems\"><\/span>14. \u041a\u0430\u043a \u043c\u043e\u0436\u043d\u043e \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442\u044c \u043f\u0430\u0434\u0435\u043d\u0438\u0435 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u0448\u0430\u0440\u043e\u0432\u044b\u043c\u0438 \u043a\u043b\u0430\u043f\u0430\u043d\u0430\u043c\u0438?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"isSelectedEnd\">Pressure loss can be minimized by:<\/p>\n<ul data-spread=\"false\">\n<li>Choosing the correct valve pattern<\/li>\n<li>Using properly sized piping<\/li>\n<li>Avoiding oversized or undersized valves<\/li>\n<li>Selecting low-resistance trim designs<\/li>\n<li>Operating the valve within its recommended range<\/li>\n<\/ul>\n<div contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"15_What_is_the_ideal_operating_position_for_a_globe_valve\"><\/span>15. \u041a\u0430\u043a\u043e\u0435 \u0440\u0430\u0431\u043e\u0447\u0435\u0435 \u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0438\u0434\u0435\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u043b\u044f \u0448\u0430\u0440\u043e\u0432\u043e\u0433\u043e \u043a\u043b\u0430\u043f\u0430\u043d\u0430?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For best control performance, globe valves typically operate between 20% and 80% open during normal process conditions. This range provides stable regulation and reduces wear on valve components.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction In industrial fluid control systems, valve selection is far more than choosing the correct size or pressure rating. Engineers must also evaluate how a valve influences flow resistance, energy consumption, and overall process efficiency. Among the many valve types used in piping systems, globe valves are widely recognized for their excellent throttling performance and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18689","post","type-post","status-publish","format-standard","hentry","category-industry-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/posts\/18689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/comments?post=18689"}],"version-history":[{"count":1,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/posts\/18689\/revisions"}],"predecessor-version":[{"id":18690,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/posts\/18689\/revisions\/18690"}],"wp:attachment":[{"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/media?parent=18689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/categories?post=18689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oudianvalve.com\/ru\/wp-json\/wp\/v2\/tags?post=18689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}