{"id":18654,"date":"2026-05-25T00:30:14","date_gmt":"2026-05-25T00:30:14","guid":{"rendered":"https:\/\/oudianvalve.com\/?post_type=product&p=18654"},"modified":"2026-05-25T01:09:25","modified_gmt":"2026-05-25T01:09:25","slug":"2507-gate-valve-4-inch-api-600-150-lb-rf-end","status":"publish","type":"product","link":"https:\/\/oudianvalve.com\/pt\/products\/gate-valves\/2507-gate-valve-4-inch-api-600-150-lb-rf-end\/","title":{"rendered":"2507 Gate Valve, 4 Inch, API 600, 150 LB, RF End"},"content":{"rendered":"

2507 Gate Valve (Super Duplex Stainless Steel)<\/h1>\n
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2507 (UNS S32750 \/ EN 1.4410 \/ ASTM A890 Gr.5A)<\/strong> is a premium super duplex stainless steel \u2014 the highest grade among duplex steels, designed for extreme corrosion and high pressure. Below is complete technical data, features, specifications, and application guide.<\/p>\n

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\ud83e\uddf1 Material Core Advantages<\/h2>\n
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  • Composition<\/strong>: 25%Cr + 7%Ni + 4%Mo + N\u2082; dual-phase structure (austenite + ferrite)<\/li>\n
  • Strength<\/strong>: Yield strength \u2265 550 MPa \u2014 2x stronger than 316L, 1.5x stronger than 2205<\/strong><\/li>\n
  • Resist\u00eancia \u00e0 corros\u00e3o<\/strong>: PREN > 42; best resistance to chloride pitting, crevice corrosion, and stress corrosion cracking<\/strong> (seawater, brine, H\u2082S, acids) \u2014 far superior to 316L\/2205<\/li>\n
  • Temperature<\/strong>: Stable up to 300\u2013350\u00b0C<\/strong>; no brittleness like austenitic steels<\/li>\n
  • Limita\u00e7\u00f5es<\/strong>: Avoid >400\u00b0C (risk of sigma phase); higher cost, better weld control needed<\/li>\n<\/ul>\n
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    \u2699\ufe0f Main Specifications<\/h2>\n
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    \u2705 Design Standards<\/h3>\n
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    • Design: API 600, API 6D, ASME B16.34, EN 1984<\/strong><\/li>\n
    • Dimensions: ASME B16.10 \/ B16.5, EN 558<\/li>\n
    • Test: API 598, EN 12266<\/strong>; optional NACEMR0175<\/strong> (sour service)<\/li>\n<\/ul>\n
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      \u2705 Size & Pressure<\/h3>\n
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      • Size: DN50\u2013DN1200 (NPS 2\u2033\u201348\u2033)<\/strong><\/li>\n
      • Pressure: Class 150\u20132500 \/ PN16\u2013PN160<\/strong><\/li>\n
      • Temperature: -40\u00b0C ~ +300\u00b0C<\/strong> (max 350\u00b0C intermittent)<\/li>\n<\/ul>\n
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        \u2705 Structure & Type<\/h3>\n
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        • Model: Z41Y (rising stem), Z45Y (non-rising stem)<\/strong><\/li>\n
        • Wedge: Solid or flexible wedge; full bore \/ reduced bore<\/li>\n
        • Bonnet: Bolted bonnet (BB), Outside Screw & Yoke (OS&Y)<\/li>\n
        • Connection: Flange RF\/RTJ, Butt Weld, Socket Weld<\/strong><\/li>\n<\/ul>\n
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          \u2705 Standard Material List<\/h3>\n\n\n\n\n\n\n\n\n\n
          Part<\/th>\nMaterial<\/th>\n<\/tr>\n<\/thead>\n
          Body \/ Bonnet \/ Gate<\/td>\n2507 \/ ASTM A890 Gr.5A \/ UNS S32750<\/strong><\/td>\n<\/tr>\n
          Tronco<\/td>\n2507 \/ F53 \/ Alloy 718<\/td>\n<\/tr>\n
          Seat \/ Seal<\/td>\nStellite hardfaced or solid 2507<\/td>\n<\/tr>\n
          Packing<\/td>\nGraphite, PTFE, or high-temperature fiber<\/td>\n<\/tr>\n
          Gasket<\/td>\nSpiral wound (graphite + 2507 inner\/outer ring)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Principais caracter\u00edsticas<\/h2>\n
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          1. Ultra-High Corrosion Resistance<\/strong>: Perfect for seawater, desalination, brine, produced water, acidic\/chloride media<\/strong> \u2014 where 316L\/2205 fail quickly<\/li>\n
          2. High Strength<\/strong>: Thinner wall than 316L \u2192 lighter weight, compact design<\/li>\n
          3. Low Flow Resistance<\/strong>: Full bore, straight-through flow, minimal pressure drop<\/li>\n
          4. Bidirectional Sealing<\/strong>: Works equally well in both flow directions<\/li>\n
          5. Long Life<\/strong>: 3\u20135x service life vs. 316L in harsh environments; low maintenance<\/li>\n
          6. Zero Leakage<\/strong>: Metal-to-metal sealing; suitable for critical isolation
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            Typical Applications<\/h2>\n
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            • \u2705 Offshore \/ Marine<\/strong>: FPSO, platforms, seawater cooling, firewater systems<\/li>\n
            • \u2705 Oil & Gas<\/strong>: Sour service (H\u2082S\/CO\u2082), produced water, pipeline isolation<\/li>\n
            • \u2705 Desalination<\/strong>: SWRO plants, high-salinity brine<\/li>\n
            • \u2705 Chemical<\/strong>: Chlor-alkali, phosphoric acid, bleach, strong oxidizers<\/li>\n
            • \u2705 Mining<\/strong>: Slurry, acidic wastewater, chloride-rich processes<\/li>\n
            • \u2705 Coastal\/Power<\/strong>: Cooling water, flue gas treatment, salt environments<\/li>\n
            • Comparison: 2507 vs 2205 vs 316L<\/strong><\/li>\n<\/ul>\n\n\n\n\n\n\n\n\n\n\n
              Item<\/th>\n316L<\/th>\n2205<\/th>\n2507<\/strong><\/th>\n<\/tr>\n<\/thead>\n
              Strength<\/td>\nM\u00e9dio<\/td>\nAlto<\/td>\nVery High<\/strong><\/td>\n<\/tr>\n
              Chloride Resistance<\/td>\nPoor<\/td>\nGood<\/td>\nExcellent<\/strong><\/td>\n<\/tr>\n
              Max Temp<\/td>\n450\u00b0C<\/td>\n300\u00b0C<\/td>\n320\u00b0C<\/strong><\/td>\n<\/tr>\n
              Sour Service<\/td>\nNo<\/td>\nLimited<\/td>\nYes<\/strong><\/td>\n<\/tr>\n
              Custo<\/td>\nBaixo<\/td>\nM\u00e9dio<\/td>\nAlto<\/strong><\/td>\n<\/tr>\n
              Best For<\/td>\nGeneral use<\/td>\nModerate corrosion<\/td>\nSevere corrosion \/ high pressure<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Installation & Operation Notes<\/h2>\n
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              1. Welding<\/strong>: Must use matching filler wire; avoid overheating (>350\u00b0C) \u2014 risk of reduced corrosion resistance<\/li>\n
              2. Gasket\/Packing<\/strong>: Use only compatible materials; avoid carbon steel contact (risk of galvanic corrosion)<\/li>\n
              3. Opera\u00e7\u00e3o<\/strong>: Fully open \/ fully close only; not for throttling<\/li>\n
              4. Cleaning<\/strong>: Do not use carbon steel brushes; keep away from iron contamination<\/li>\n<\/ol>\n

                Perguntas frequentes<\/h2>\n
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                Q: When should I choose 2507 instead of 2205?<\/strong><\/div>\n
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                A: If chloride > 10,000 ppm, seawater, sour gas, or operating >150\u00b0C \u2014 2507 is the only safe choice<\/strong>.<\/div>\n
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                Q: Is 2507 better than Alloy 20 \/ 904L?<\/strong><\/div>\n
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                A: For chloride\/seawater \u2014 yes, much better and stronger<\/strong>. For pure sulfuric acid \u2014 Alloy 20 may be better.<\/div>\n
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                Q: Can it replace titanium?<\/strong><\/div>\n
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                A: In most marine\/chemical cases \u2014 yes, at lower cost and higher strength<\/strong>.<\/div>\n
                <\/div>\n<\/blockquote>\n
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                Would you like me to convert this into a technical specification sheet (TDS)<\/strong> or a selection guide table<\/strong> for quick reference?<\/div>\n<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

                Padr\u00e3o de projeto: API 600
                \nClassifica\u00e7\u00f5es de press\u00e3o-temperatura: ASME B16.34
                \nFaixa de tamanho: 2\u201d a 48\u201d
                \nFaixa de press\u00e3o: Classe 150 a 2500
                \nConex\u00f5es finais: RF flangeado, RTJ, solda de topo
                \nDimens\u00f5es da extremidade flangeada: ASME B16.5 (\u226424\u201d), ASME B16.47 S\u00e9rie A ou B (>24\u201d)
                \nDimens\u00f5es da extremidade da solda de topo: ASME B16.25 face a face
                \nDimens\u00f5es face a face: ASME B16.10
                \nInspe\u00e7\u00e3o e Teste: API 598
                \nMateriais do corpo: ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M, ASTM A351 CF8C
                \nCN3MN, CK3MCUN, CN7M, ASTM A890 4A(CD3MN), ASTM A890 5A(CE3MN),
                \nASTM A890 6A(CD3MWCuN)
                \nASTM B148 C95800, ASTM B148 C95500.
                \nPacking materials:Ptfe,PPL, graphite, graphite with inconel wir<\/p>\n

                  \n
                • Haste ascendente<\/li>\n
                • Assento de v\u00e1lvula integral\/assentos soldados com veda\u00e7\u00e3o<\/li>\n
                • Chefes para torneiras e bypass<\/li>\n
                • Totalmente guiado, cunha<\/li>\n
                • Emiss\u00f5es fugitivas testadas<\/li>\n
                • NACE MR0175 (opcional)<\/li>\n<\/ul>","protected":false},"featured_media":18655,"template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false},"product_brand":[],"product_cat":[81],"product_tag":[718,525,719,720],"class_list":{"0":"post-18654","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gate-valves","7":"product_tag-2507-gate-valve","8":"product_tag-4-inch-2507-gate-valve","9":"product_tag-api600-2507-gate-valve-150lb-2507-gate-valve","10":"product_tag-rf-end-2507-gate-valve","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/product\/18654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/media\/18655"}],"wp:attachment":[{"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/media?parent=18654"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/product_brand?post=18654"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/product_cat?post=18654"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/oudianvalve.com\/pt\/wp-json\/wp\/v2\/product_tag?post=18654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}