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SwingCheckValveSuppliers GZP Pressure seal swing check valves are manufactured to the latest edition of API 600/ASME B 16.34 and tested to API 598.All valves from GZP VALVE are strictly 100%tested before shipment to guarantee zero leakage. Why we choose forged material? When compared with castings, forged valve bodies offer the advantages of more uniform structure, greater density, higher strength integrity, enhanced dimensional characteristics and closer dimensional tolerances Application fields: *Thermal & Cogeneration Power Plant *Chemical , Petrochemical & Other Process Applications * Nuclear Power Plant General Features of the pressure seal swing check valve It provide efficient protection of equipment against backflow. The valves feature a unique compact cage unit design comprised of all moving parts easily accessible for service. The light-weight pressure seal cover remains tight regardless of pressure-temperature fluctuation. * Advanced pressure seal design * Compact cage unit * Forged seat and Stellited disc. * Easy in-line service (All parts are easily accessible for maintenance. * Forged body and bonnet Technical Data Design StandardAPI6D, BS1868, DIN3356,EN10739 Body MaterialForged Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc. Pressures rangeANSI 800 ~ANSI 2500 ,PN120~PN420 Size rangeDN50(2") ~DN600 (24") Face to FaceANSI B16.10,EN 558,DIN3202 Flanged RF, FF, RTJ EndsASME B16.5 鈮?DN600 (24") BS 4504,DIN 2543-2545,EN1092 Butt-Weld BW EndsASME B16.25 ,DIN 3239,BS 2080, EN 12627 Temperature range-29掳~ 425掳C Design Feature ConstructionSwing type, Disc TypeSingle plate Seat SealingIntegral body seat ,seat welded and overlaid Fire Safe DesignAPI 607,BS 6755 Inspection & Test Visual InspectionMSS SP-55 Material InspectionPMI Test----Chemical Analysis HB Test---Hardness Test UT---Ultrasonic Test RT---RadiographicTest MT---Magnetic Test NDT Test Non-destructive Dimention inspcetionAccording to drawings Valve Inspection and TestAPI 598,DIN 3230,EN 12266,BS 5146SwingCheckValveSuppliers website:http://www.highmpa-valve.com/check-valve/swing-check-valve/