API 594 Vertical / Lift Wafer Check Valve (H71)

API 594 Vertical / Lift Wafer Check Valve (H71) Conform to API 594, API 6D, and ASME B16.34.  They are tested according to API 598, and marked as per MSS SP-25  Construction is as follows:  - Dual Plate- With Spring- Round, Full Lug or Double Flange- Soft or Metal Seated- Retainer or Retainer Less Design- Wafer Ends to Suit for Flanged Ends(ASME B16.5 and B16.47 A/B) Main Part & Materials Part NamesPart MaterialsBodyWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800BonnetWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800Disc/Ball/WedgeWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800Seat/Seat Ring13%CrSS30413%CrSS304SS316SS304LSS316LC83600/C95800PTFE/NBR/EPDM/VITONPackingGraphite/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 RatingPN10~PN420, CLASS150~2500Normal Size RangeDN40~DN1000, 1 1/2"~40"/* 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