{"id":18668,"date":"2026-05-25T11:52:53","date_gmt":"2026-05-25T11:52:53","guid":{"rendered":"https:\/\/oudianvalve.com\/?post_type=product&p=18668"},"modified":"2026-05-27T06:04:47","modified_gmt":"2026-05-27T06:04:47","slug":"pn100-2205-check-valve-dn50-rf-end","status":"publish","type":"product","link":"https:\/\/oudianvalve.com\/es\/products\/check-valves\/pn100-2205-check-valve-dn50-rf-end\/","title":{"rendered":"PN100 2205 Check Valve,DN50,RF End"},"content":{"rendered":"

PN100 2205 Check Valve<\/h1>\n
<\/div>\n
PN100 2205 Check Valve<\/strong> is a high\u2011pressure non\u2011return valve rated for 100 bar (10.0 MPa)<\/strong>, manufactured from Duplex Stainless Steel 2205 (UNS S32205 \/ 1.4462)<\/strong>. It prevents reverse flow, combines high strength with excellent corrosion resistance, and is ideal for severe service where standard stainless steels fail.<\/div>\n
<\/div>\n
\n
<\/div>\n

\u00a0Material: 2205 Duplex Stainless Steel<\/h2>\n
<\/div>\n
    \n
  • Standard<\/strong>: UNS S32205, EN 1.4462, ASTM A182 F51 \/ A351 CD4MCU<\/li>\n
  • Composition<\/strong>: Cr\u202f22%, Ni\u202f5%, Mo\u202f3%, N\u202f0.14\u20130.20% \u2014 dual\u2011phase microstructure (50% austenite + 50% ferrite)<\/li>\n
  • Core Advantages<\/strong>:\n
    <\/div>\n

    High Strength<\/strong>: Yield strength \u2265\u202f450\u202fMPa \u2014 2\u00d7 stronger than 316L<\/strong> \u2192 thinner wall, compact design, safe for PN100 high pressure<\/p>\n

    <\/div>\n

    Superior Corrosion Resistance<\/strong>: PREN\u202f\u2248\u202f35\u201338 \u2014 far better pitting & crevice resistance than 316L\/317L; excellent in chlorides, seawater, brine, brackish water, H\u2082S\/sour service, dilute acids<\/p>\n

    <\/div>\n

    Stress Corrosion Cracking (SCC) Resistance<\/strong>: Highly resistant to chloride & sulfide SCC \u2014 main reason for choosing over 316L<\/p>\n

    <\/div>\n

    Rango de temperatura<\/strong>: \u201150\u00b0C ~ +300\u00b0C<\/strong>; avoid >320\u00b0C (risk of embrittlement)<\/li>\n

  • Limit<\/strong>: Not suitable for strong reducing acids (pure HCl, dilute H\u2082SO\u2084 <70\u00b0C) or concentrated oxidizing media; avoid <\u201150\u00b0C (low\u2011toughness risk)<\/li>\n<\/ul>\n
    <\/div>\n
    \n
    <\/div>\n

    \u00a0Full Specifications<\/h2>\n

    Basic Data<\/h3>\n
    <\/div>\n
      \n
    • Model<\/strong>:\n
        \n
      • H41W\u2011100\u202f2205: Lift\u2011type check valve (flanged, vertical\/horizontal)<\/li>\n
      • H44W\u2011100\u202f2205: Swing\u2011type check valve<\/li>\n
      • H42W\u2011100\u202f2205: Axial flow \/ Piston \/ Spring\u2011loaded check valve (best for high pressure PN100)<\/li>\n
      • H45W: Y\u2011type check valve<\/li>\n<\/ul>\n
        <\/div>\n<\/li>\n
      • Pressure Rating<\/strong>: PN100 (100\u202fbar \/ 10.0\u202fMPa)<\/strong> \u2014 heavy\u2011duty high\u2011pressure class<\/li>\n
      • Tama\u00f1o<\/strong>: DN15\u202f\u2013\u202fDN300 (\u00bd\u2033\u202f\u2013\u202f12\u2033); PN100 available up to DN200 as standard<\/li>\n
      • Est\u00e1ndares de dise\u00f1o<\/strong>:\n
          \n
        • DIN\u202f3356, EN\u202f12516, API\u202f6D, ASME\u202fB16.34, GB\/T\u202f12236<\/li>\n
        • Face\u2011to\u2011Face: DIN\u202f3202, ASME\u202fB16.10<\/li>\n
        • Flange: DIN\u202f2543\u20132545, EN\u202f1092\u20111, ASME\u202fB16.5 (PN100 = thick\u2011wall, high\u2011strength flanges, RTJ\/RF face)<\/li>\n<\/ul>\n
          <\/div>\n<\/li>\n
        • Test Standard<\/strong>: API\u202f598, EN\u202f12266\u20111, ISO\u202f5208\n
            \n
          • Shell test: 150\u202fbar<\/strong>; Seat test: 110\u202fbar<\/strong>; Leakage Rate\u202fA (zero leakage)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

            Standard Material BOM<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
            Part<\/th>\nMaterial<\/th>\nNote<\/th>\n<\/tr>\n<\/thead>\n
            Body \/ Bonnet \/ Cover<\/strong><\/td>\n2205 Duplex (S32205 \/ 1.4462)<\/strong><\/td>\nForged preferred for PN100; cast CD4MCU available for larger sizes<\/td>\n<\/tr>\n
            Disc \/ Gate \/ Piston \/ Seat<\/strong><\/td>\n2205<\/strong><\/td>\nSolid; Stellite\u202f6 hardface optional for high\u2011wear \/ high\u2011velocity service<\/td>\n<\/tr>\n
            Spring<\/strong><\/td>\nAlloy C\u2011276 \/ X\u2011750 \/ 2507<\/strong><\/td>\n\u00a0316L spring will fail rapidly \u2014 high pressure + corrosion<\/td>\n<\/tr>\n
            Gasket<\/strong><\/td>\nSpiral\u2011wound: 2205 winding + graphite filler<\/strong> or solid 2205 gasket<\/td>\n\u00a0Never use 316L \u2014 galvanic risk<\/td>\n<\/tr>\n
            Seal \/ O\u2011Ring<\/strong><\/td>\nPTFE, Graphite, Kalrez\u00ae (FFKM)<\/td>\n\u2264\u202f200\u00b0C: PTFE; >\u202f200\u00b0C: Graphite\/metal<\/td>\n<\/tr>\n
            Fasteners<\/strong><\/td>\n2205 \/ 2507 \/ Alloy\u202f718<\/strong><\/td>\nCarbon steel \/ 304\/316 forbidden<\/td>\n<\/tr>\n
            Pin \/ Shaft \/ Trunnion<\/strong><\/td>\n2205 or 2507<\/strong><\/td>\nAnti\u2011galling, high strength<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            Key Advantages for PN100 Service<\/h2>\n
            <\/div>\n
              \n
            1. High Pressure + Corrosion Resistance Combined<\/strong>:\n
                \n
              • PN100 requires very high material strength \u2014 2205 delivers this while resisting corrosion that carbon steel or 316L cannot handle<\/li>\n
              • Perfect for high\u2011pressure pipelines with chlorides, brine, or sour gas<\/li>\n<\/ul>\n
                <\/div>\n<\/li>\n
              • Compact & Lightweight<\/strong>:\n
                  \n
                • Higher strength means thinner wall thickness vs 316L\/904L \u2192 smaller footprint, easier installation, lower weight<\/li>\n<\/ul>\n
                  <\/div>\n<\/li>\n
                • Fast & Reliable Non\u2011Return<\/strong>:\n
                    \n
                  • Spring\u2011loaded \/ axial\u2011flow design preferred for PN100: closes instantly, minimizes water hammer<\/li>\n
                  • Bidirectional sealing capability; zero reverse leakage<\/li>\n<\/ul>\n
                    <\/div>\n<\/li>\n
                  • Cost\u2011Performance Leader<\/strong>:\n
                      \n
                    • ~60\u201380% more expensive than 316L, but 1\/2 to 1\/3 the cost of 2507 \/ C4 \/ Titanium<\/strong><\/li>\n
                    • Best balance of strength, corrosion resistance, and price<\/strong> for high\u2011pressure chloride service<\/li>\n<\/ul>\n
                      <\/div>\n<\/li>\n<\/ol>\n
                      \n
                      <\/div>\n

                      \u00a0Recommended Valve Type for PN100<\/h2>\n
                        \n
                      • Axial Flow \/ Piston \/ Spring\u2011Loaded (H42W) \u2014 TOP CHOICE<\/strong>:\n
                          \n
                        • Compact, short face\u2011to\u2011face, suitable for any installation position<\/li>\n
                        • Spring\u2011assisted closing \u2192 very low pressure drop, fast response, minimal water hammer<\/li>\n
                        • Best for high pressure, high velocity, gas\/liquid mixed service<\/li>\n<\/ul>\n
                          <\/div>\n<\/li>\n
                        • Lift\u2011Type (H41W)<\/strong>: Good, but higher pressure drop; best for horizontal lines<\/li>\n
                        • Swing\u2011Type (H44W)<\/strong>: Not ideal for PN100 \u2014 bulky, slow closing, heavy, high torque; use only for large DN low\u2011velocity<\/li>\n<\/ul>\n

                          Comparison: 2205 vs 316L \/ 904L \/ 2507 \/ TA2 (PN100 Rating)<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
                          Par\u00e1metro<\/th>\n316L<\/th>\n904L<\/th>\n2205<\/strong><\/th>\n2507<\/th>\nTA2<\/th>\n<\/tr>\n<\/thead>\n
                          Strength (Yield)<\/strong><\/td>\n170\u202fMPa<\/td>\n215\u202fMPa<\/td>\n450\u202fMPa<\/strong><\/td>\n550\u202fMPa<\/td>\n275\u202fMPa<\/td>\n<\/tr>\n
                          PN100 Suitability<\/strong><\/td>\n\u00a0Too weak<\/td>\n\u00a0Too weak<\/td>\nExcellent<\/strong><\/td>\n\u00a0Best<\/td>\nNeeds special design<\/td>\n<\/tr>\n
                          Chloride Resistance<\/strong><\/td>\nPoor<\/td>\nGood<\/td>\nVery Good<\/strong><\/td>\nExcellent<\/td>\nExcellent<\/td>\n<\/tr>\n
                          Sour Service (H\u2082S)<\/strong><\/td>\n\u00a0Fail<\/td>\n\u00a0Limited<\/td>\nGood<\/strong><\/td>\n\u00a0Excellent<\/td>\n\u00a0Fail<\/td>\n<\/tr>\n
                          Reducing Acids<\/strong><\/td>\nPoor<\/td>\nExcellent<\/td>\nFair<\/td>\nFair<\/td>\n\u00a0Fail<\/td>\n<\/tr>\n
                          Relative Cost<\/strong><\/td>\n1.0x<\/td>\n3.0x<\/td>\n2.2x<\/strong><\/td>\n4.0x<\/td>\n5.0x<\/td>\n<\/tr>\n
                          Best For PN100<\/strong><\/td>\n\u2014<\/td>\n\u2014<\/td>\nStandard choice<\/strong><\/td>\n\u00a0Severe corrosion<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                          \n
                          Rule<\/strong>:<\/p>\n
                          <\/div>\n

                          High pressure (\u2265\u202fPN63) + chloride \/ seawater \/ sour gas \u2192 2205 is default selection<\/strong>; upgrade to 2507 only if chloride >\u202f10,000\u202fppm or extreme corrosion<\/em><\/div>\n

                          <\/div>\n<\/blockquote>\n
                          <\/div>\n
                          \n
                          <\/div>\n

                          Installation & Operation Rules<\/h2>\n
                          <\/div>\n
                            \n
                          1. Flow Direction<\/strong>: Arrow marked on body \u2014 install strictly in flow direction<\/li>\n
                          2. Orientation<\/strong>:\n
                              \n
                            • Spring\u2011loaded \/ Axial: Any orientation (horizontal\/vertical)<\/li>\n
                            • Swing\u2011type: Install only horizontal, pin axis horizontal<\/li>\n<\/ul>\n
                              <\/div>\n<\/li>\n
                            • Galvanic Isolation<\/strong>: 2205 is noble alloy. Do NOT connect directly to carbon steel<\/strong>. Use insulating gaskets or 2205 spool pieces.<\/li>\n
                            • Welding<\/strong>: Use filler ER2205 \/ 1.4462<\/strong>; controlled heat input (10\u201325\u202fkJ\/cm); interpass temp <\u202f150\u00b0C; NO post\u2011weld heat treatment needed<\/strong><\/li>\n
                            • Temperature<\/strong>: \u2264\u202f300\u00b0C continuous<\/strong>; above this, strength drops and embrittlement risk increases<\/li>\n
                            • Avoid<\/strong>: Media containing hydrofluoric acid, pure hydrochloric acid, or strong reducing acids<\/li>\n<\/ol>\n
                              <\/div>\n
                              \n
                              <\/div>\n

                              \u00a0FAQ: PN100 2205 Check Valve<\/h2>\n
                              <\/div>\n
                              Q1: Why choose 2205 instead of 316L for PN100?<\/strong><\/div>\n
                              <\/div>\n
                              \n
                              A:<\/strong> 316L yield strength is only 170\u202fMPa \u2014 to reach PN100 it would need extremely thick walls (heavy, expensive, still low corrosion resistance). 2205 = 2\u00d7 strength + far better corrosion \u2192 perfect match for PN100<\/strong>.<\/div>\n
                              <\/div>\n<\/blockquote>\n
                              Q2: Can 2205 replace 2507?<\/strong><\/div>\n
                              <\/div>\n
                              \n
                              A:<\/strong> In most cases YES<\/strong>. 2205 covers 80% of duplex applications at ~55% cost of 2507. Upgrade to 2507 only if: chloride >\u202f15,000\u202fppm, high\u2011temperature brine, or extreme sour service.<\/div>\n
                              <\/div>\n<\/blockquote>\n
                              Q3: Is PN100 2205 available in all sizes?<\/strong><\/div>\n
                              <\/div>\n
                              \n
                              A:<\/strong> Standard: DN15\u202f\u2013\u202fDN200. DN250\u2013DN300 PN100 is custom forged, available but higher cost.<\/div>\n
                              <\/div>\n<\/blockquote>\n
                              Q4: Service life?<\/strong><\/div>\n
                              <\/div>\n
                              \n
                              A:<\/strong> In high\u2011pressure seawater\/brine: 10\u201315\u202fyears<\/strong>; 3\u20134\u00d7 longer than 316L.<\/div>\n
                              <\/div>\n<\/blockquote>\n
                              \n
                              <\/div>\n
                              Final Recommendation<\/strong><\/p>\n
                              <\/div>\n

                              PN100 2205 Check Valve<\/strong> is the standard industry solution for high\u2011pressure corrosion service<\/strong>. It offers the optimal mix of strength, corrosion resistance, availability, and economy \u2014 exactly what you need for pipelines where pressure is high and stainless steel would corrode.<\/div>\n

                               <\/p>\n

                               <\/p>\n

                               <\/p>","protected":false},"excerpt":{"rendered":"

                              China 2205 Check Valve, PN100 2205 Check Valve,DN50 2205 Check Valve,RF End 2205 Check Valve,2205 Check Valve Factory<\/p>","protected":false},"featured_media":18677,"template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false},"product_brand":[],"product_cat":[82],"product_tag":[756,752,754,753,755],"class_list":{"0":"post-18668","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-check-valves","7":"product_tag-2205-check-valve-factory","8":"product_tag-china-2205-check-valve","9":"product_tag-dn50-2205-check-valve","10":"product_tag-pn100-2205-check-valve","11":"product_tag-rf-end-2205-check-valve","13":"first","14":"instock","15":"shipping-taxable","16":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/product\/18668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/media\/18677"}],"wp:attachment":[{"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/media?parent=18668"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/product_brand?post=18668"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/product_cat?post=18668"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/oudianvalve.com\/es\/wp-json\/wp\/v2\/product_tag?post=18668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}