Product Name: Hard Face Single Disc Swing Check Valve Model NO.: H74X Application: Industrial Usage, Water Industrial Usage, Household Usage Standard: ANSI Flow Direction: Unidirection Sealing Form: metal or Soft Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence Pressure: 150lb-1500lb Structure: Wafer Single Plate Connection Form: Wafer Material: Stainless Steel Size: 1/2"-48" Temperature of Media: Normal Temperature Characteristic: Single Disc Swing Check Valve Design & Manufacture: API 594, API 6D, Asme B16.34 Pre-Temp. Rating: Asme B16.34 Face to Face: API 594 Ends Connection: Asme B16.25, Asme B16.5/16.47 Inspect & Test: API 598 Certificate 1: Dnv CE 0575/ISO9001 Certificate 2: API 6D/API 600 Trademark: VATAC or OEM Transport Package: Sea Worthy Specification: API 6D, BS1868, DIN3202, ISO Origin: China HS Code: 8481804090 Product Description Product DescriptionStructure: CheckPressure: Low to high pressurePower: HydraulicMaterial: CastingTemperature of Media: Normal TemperatureMedia: base1) Sizes: 1/2''-40''2) Class: 150-1, 500Lbs3) Material: WCB, LCB, CF8 304, CF8M 316, CF3 304L, CF3M 316L, WC1, WC6, WC9, CN7M, Monel4) Stardards:A) Design and manufacture: API 6D, API594B) Face to face: API 6D, API594, DIN 3202C) End flange dimensions: ANSI B16.5, ANSI B16.47, API605, MSS SP-44, ISO7005-1, DIN2543-2548D) Pressure-temperature ratings: ASME B 16.345) Inspection and test: API598, API 6DStructure features:1, It is short in face to face dimensions, being 1/4-1/8 times that of traditional flange type check valve.2, It is impact in volume size and light in weight of about 1/4-1/20 times that of traditional flange type check valve.3, The disc closes quickly with less water hammer pressure.4, It is convenient in installation, being available for use on level or vertical pipeline.5, Flow passage is fluent with flow resistance.6, It acts sensitively with good sealing effect.7, Disc travel is short with less impact force caused by valve closing.8, It is impact in integral structure with nice outline view.9, It is longer for service life with high reliability.Construction is as follows:- Full Open, or Reduce Pore- Piston Check- Ball Check- Swing Check- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet- With or without counterweight- Butt Weld Ends to ASME B16.25- Flanged Ends to ASME B16.5 and B16.47 A/BMain Part & MaterialsPart NamesPart MaterialsBodyWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800BonnetWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800Disc/Ball/WedgeWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800StemF6aF304F6aF304F316F304LF316LC83600/C95800Seat/Seat Ring13%CrSS30413%CrSS304SS316SS304LSS316LC83600/C95800PackingGraphite/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