Spring Rubber Double Disc Dual Plate/Flap/Butterfly Wafer Check Valve

Our check valve is economically priced but with higher quality and capability than most at this market Product Feature:Pressure seal design. Unique cage unit: entire seat-hinge-pin-disc assembly can be tested outside the valve before seal welding into the body. Eliminates pin seal leakage. Easy in-line service. Efficient operation. The hinge pin located near the center of gravity allows the conical seating face of the disc to move out and into the seat rapidly without sliding or wear. The disc pivots through a small arc preventing backflow and "water hammer". Superior tightness: conical, lapped-in hardfaced seating is self-aligning. Valve can be used even in vertical piping with flow up. Technical Parameters:SizeDN50-DN900Working pressure16Bar10BarShell24Bar15BarSeal18Bar11BarOperating Temperature-10ºC~+120ºCOperating EnvironmentBallast and bilge system     Chemical processingDesalination plants  Drilling rigs    Drinking waterDry powder     Food and beverage Gas plantsHAVC  Mining industryPaper industry Sand handlingSeawater    Sugar industryThermo technical water treatment  Waste water Main Material:NameMaterialBodyCast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-BronzeDiscDuctile Iron  Carbon Steel Stainless Steel  AL-BronzePinStainless Steel  Monel K500SeatBUNA  NBR  EPDM  VITON HEPDM  Neoprene  Hypalon Natural rubberExecutive Standard:Design StandardEN12334  EN14341Inspection & TestEN12266-1  ISO5208End StandardANSI B16.1 125LBBS4504 PN10 & PN16EN1092-2 PN10 & PN16AS 2129-2000 Table D  Table EISO 7005 PN10 & PN16ASME B16.5 150LBJIS B2220 5K/10KFace to FaceEN558-1 Series16   ISO 5752 Series16   ANSI B16.10 GB/T12221  DIN3202 K3IN3202**COMPANY INTRODUCTION **Company Goal : OEM service for world-famous valve brand *Design & Development ability -- SolidWorks, Pro / E, AutoCAD etc **Dimension Measurement &Inspection  **Assembly Workshop **Packaging  **Certificates --  CE  ISO  WRAS  ACS certificates /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1