Product Name: Pressure Sealed Swing Check Valves Class 1500 Model NO.: H44H 1500LB Application: Industrial Usage, Household Usage Standard: API6d Flow Direction: Unidirection Sealing Form: Swing Ckeck Valve Pressure: High Temperature Structure: Pressure Sealed Connection Form: Flange Material: Cast Steel Rate: Class1500 Size: 8" Seat: A105+Stl Painting Color: Grey Trademark: Guanli Valve Transport Package: Plywood Case Specification: 2"-28" Origin: China HS Code: 8481804090 Product Description Pressure sealed Swing Check Valve CE,ISO AprrovedRate:Class 1500Sizes: 2" -24";Bigger size available upon requestPressure sealed Swing Check Valve Features:*Full Opening Valve *Stellite overlay as standard* NACE MR-0175 on requestPressure Sealed Swing Check Valve Design & Manufacture API598Inspection & Test API 598, API 6DBW End Dimension ASME B16.25Face to Face ASME B16.10Pressure-temperature Ratings ASME B16.34RateTEST PRESSURE HydrostaticAirBodySeatSeat150037.5Mpa27.5Mpa/