Forged/Cast Carbon Steel/Stainless Steel Butt Welded Check Valve

Forged Stainless Steel SS316L/SS304L Butt Welded Check Valve Conform To ASME B16.34, and MSS-SP-118  They are tested according to API 598, and marked as per MSS SP-25 Construction is as follows:   - Full Port or Standard Port- Piston Check- Ball Check- Swing Check- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet- Spring available on request- Socket Weld Ends to ASME B16.11- Butt Weld Ends to ASME B16.25- Screwed Ends to ANSI/ASME B1.20.1- Flanged Ends to ASME B16.5  Main Part & Materials    Part NamesPart MaterialsBodyA105LF2F22F304F316F304LF316LB62BonnetA105LF2F22F304F316F304LF316LB62Disc/Ball/WedgeA105SS304F22F304F316F304LF316LB62StemA105F304F6aF304F316F304LF316LB62Seat/Seat Ring13%CrSS30413%CrF304F316F304LF316LB62PackingGraphite/PTFEGasketSS304+Graphite/SS304+GraphiteBolts/NutsB7/2HL7/4B16/4B8/8B8M/8MB8/8B8M/8MB8M/8MSuitable MediumW.O.G etc.HNO3, CH3OOH etc.Sea Water etc.Suitable Temperature-29~425 °C-46~340 °C-46~340 °C-196~427 °C-196~427 °C-196~427 °C-196~427 °C-29~220 °C  Normal Pressure Rating PN10~PN420, CLASS150~2500  Normal Size Range DN50~D750, 2"~30"    OUR ADVANTAGE /* 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