The Single Disc Check Valve adopts a low-inertia design, featuring fast response and adjustable closing time. The contact surface between the valve disc and the valve seat is specially hardened, ensuring excellent wear resistance. A spring-assisted closing option is provided to prevent backflow of the medium. The overall structure is compact, and the installation orientation is not restricted. The working pressure can reach Class 2500, with a temperature range of -196℃ to 550℃. It meets the requirements of international standards such as API 6D.
Material: Carbon steel, stainless steel, alloy steel, etc
Nominal Size: NPS2~NPS12/DN50~DN300
Pressure Rate: Class150~ Class 2500/PN20~PN420
Temperature Range: -29℃~540℃
Operator: Manual, Pneumatic, Electric, etc
Application range: The check valve is generally used in the pipeline where the convection resistance requirement is not strict, that is, where the pressure loss is not considered. Such as high temperature and high pressure working media, toxic and harmful dangerous liquids, the closing parts are required to ensure long-term sealing and no leakage. In general, the conditions of use require reliable sealing performance. Such as power industry, petroleum refining, petrochemical, offshore oil, urban construction of water engineering, chemical industry and other fields of application.
◎ Design Standard: API 594,GB/T 12235
◎ Pressure Temperature Rate:ASME B16.34,GB/T12224
◎ Face to Face: API 6D,GB/T12221
◎ Flange Standard: ASME B16.5,GB/T9113
◎ Butt Weld Standard: ASME B16.25,GB/T12224
◎ Fire Safe: API 607
◎ Pressure Test: API6D,GB/T13927
An energy-saving multi-combination control valve without external energy sources, used for flow and temperature control devices for non-corrosive liquids with a maximum temperature of 350℃, as well as pressure and differential pressure control devices, and flow and pressure control devices for liquids, gases and steam.
The valve disc of the Cryogenic Swing Check Valve adopts a cantilevered swing structure, combined with precisely machined valve seat sealing surfaces, to achieve rapid response and reliable sealing, effectively preventing the reverse flow of the medium. The overall design of the valve complies with international standards such as BS 6364 and ISO 28921, and is suitable for low-temperature conditions in air separation plants, liquefied natural gas storage and transportation, and the chemical industry.
Y-Type Check Valveis a type of valve used to prevent fluid backflow, named after its Y-shaped valve body. It allows fluid to flow in one direction, and when the fluid flows in the opposite direction, the valve automatically closes to prevent backflow.