Cryogenic Check Valves: Overview & Technical Parameters

A Cryogenic Check Valve is a one-way valve specially designed for cryogenic working conditions. It is widely used in liquefied natural gas (LNG), liquid nitrogen, air separation equipment, cryogenic storage tanks and distribution systems to ensure one-way fluid flow, prevent medium backflow, and guarantee the safety and stability of the system.

Technical Parameters

• Product Name: Cryogenic Check Valve

• Valve Body Material: Stainless Steel

• Connection Method: Socket Weld

• Nominal Pressure: 4.0MPa

• Nominal Diameter: DN10~DN200

• Actuation Mode: Automatic

• Applicable Media: Gases and liquids such as LNG, LO2, LN2, LAr, CO2, etc.

• Applicable Temperature: -196℃～+80℃

• Valve Bonnet Material: CF8

• Packing: PTFE

• Medium Flow Direction: From below the valve disc upward

• Manufacturing Standards: National Standard GB / Ministry of Machinery Industry Standard JB / Ministry of Chemical Industry Standard HG / American Standard ANSI/API / Japanese Standard JIS / German Standard DIN / Customization according to other standards