econ check valves wafer typelow weight, low flow resistance,easy mounting, tight shut-offspecial brass, DN 15 to DN 40:fig. 2624zincfree bronze, DN 50 to DN 100:stainless steel AISI-420, DN 15 to DN 40:forged steel C 22.8, DN 50 to DN 100:fig.2634stainless steel AISI-304: fig. 24stainless steel AISI-316: fig. 2666fig. 2624DN 15 to DN 40fig. 2624, DN 50 to DN 100fig. 2634/24/2666, DN 15 to DN100Econ wafer check valves are suitable for horizontal and vertical pipelines.(upward flow direction)application:installation:For steam, gases and liquids that do not attack the component materials.These check valves can be used as vacuum breaker.pressure/temperature rating:materials:fig. 2624:16 bar - 120 °C13 bar - 250 °Cfig.2624bodyDN 15 to DN 40:special brassSoMs 2165DN 50 to DN 100:zincfree bronzeCuSn12DN 15 to DN 40:SS AISI-304(Ws.no. 1.4301)DN 50 to 100:SS AISI-316(Ws.no. 1.4571)fig. 2634/24/2666:40 bar - 120 °C30 bar - 400 °Cfig.2666fig.2634fig.24DN 15 to DN 40:SS AISI-304SS AISI-316SS AISI-420(Ws.no. 1.4301)(Ws.no. 1.4571)(Ws.no. 1.4021)DN 50 to DN 100:forged steel C 22.8SS 13 % Cr seatSS AISI-316(Ws.no. 1.4571)SS AISI-304SS AISI-316(Ws.no. 1.4301)(Ws.no. 1.4571)discspringSS AISI-316(Ws.no. 1.4571)SS AISI-316(Ws.no. 1.4571)SS AISI-304SS AISI-316(Ws.no. 1.4301)(Ws.no. 1.4571)dimensions (mm):DN1520253240506580100L1619222831.0465060D15161718292D244738296116133152weight (kg)0.170.270.300.400.600.801.401.902.40fig. 2624,DN 15 to DN 40fig. 2624, DN 50 t/m DN100fig. 2634/24/2666,DN 15 to DN 100D1 = suitable for mounting between flanges DIN PN10to PN 40D2 = suitable for mounting between flanges DIN PN6to PN 40face tot face to DIN 3202-K4minimum opening pressure:for pipelines with horizontal flow: approx. 200 mm Hgfor other types see next pageflow charts for pressure drop and flow rate on requestcontents90
valves & fittings
econ check valvesother wafer typesbodyPTFEbrassbrassSoMsdiscPTFEplasticAISI-316AISI-316size rangeDN 15 to DN 100DN 15 to DN 100DN 15 to DN 100DN 50 to DN 100pressure ratingPN 6PN 6PN 6/10/16PN 6/10/16face to faceacc. DIN 3202,table 3, K4bodybronzesteelCr steelC 22.8*discAISI-316AISI-316AISI-316AISI-316size rangepressure ratingface to faceacc. DIN 3202,table 3, K4DN 15 to DN 40PN 6/10/16DN 15 to DN100PN 6/10/16/25/40DN 15 to DN100PN 6/10/16/25/40DN 15 to DN40PN 6/10/16/25/40* with SS 13 % Cr seatbodytitaniumhastelloy Bhastelloy CCr steelAISI-316disctitaniumhastelloy Bhastelloy CCr steelAISI-316size rangeDN 15 to DN 100DN 15 to DN 100DN 15 to DN 100DN 15 to DN 400DN 15 to DN 400pressure ratingPN 6/10/16/25/40PN 6/10/16/25/40PN 6/10/16/25/40PN 6/10/16/25/40PN 6/10/16/25/40face to faceacc. DIN 3202,table 3, K5bodycast ironcast ironcast irondiscplasticcast ironbronzesize rangeDN 125 to DN 200DN 125 to DN 200DN 125 to DN 200pressure ratingPN 6PN 6/10/16PN 6/10/16face to faceacc. DIN 3202,table 3, K4bodybronzesteelCr steelC 22.8*AISI-316AISI-304discAISI-316AISI-316AISI-316AISI-316AISI-316AISI-304size rangepressure ratingface to faceacc. DIN 3202,table 3, K4on request:acc. DIN 3202table 3, K5DN 125 to DN 200PN 6/10/16DN 125 to DN 200PN 6/10/16/25/40DN 125 to DN 200PN 6/10/16/25/40DN 125 to DN 200PN 6/10/16/25/40DN 125 to DN 200PN 6/10/16/25/40DN 125 to DN 200PN 6/10/16/25/40* with SS 13 % Cr seatbodysteelAISI-316discAISI-304AISI-316size rangeDN 15 to DN 400DN 15 to DN 400pressure ratingPN 63/100/160PN 63/100/160face to faceacc. DIN 3202,table 3, K5the above mentioned types are conform to the requirements of Leakage rate 2(DIN 3230, table 3, BO2-BN2)on request to the requirements of Leakage rate 1 (DIN 3230, table 3, BO1-BN1)available seal rings:all types, except a disc of plastic, are available with non-metallic seat rings asfollows:qNBR:–30°C tot +90°CqEPDM:–50°C tot +150°Cqviton:–25°C tot +200°CqPTFE:–190°C tot +200°C
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