Low temperature check valve

Low temperature check valve refers to a check valve in which the valve body, valve cover, valve plate, valve seat, valve shaft and other overcurrent components are made of materials that have undergone special low-temperature treatment. Low temperature treatment requires the check valve material to be immersed in liquid nitrogen at a temperature of -196 degrees Celsius for nitriding treatment. After soaking for a certain period of time, the metallographic structure of the material is thoroughly adapted to a low temperature environment of -196 degrees Celsius. The low-temperature check valve produced by Shanghai Meiyanyi Pump Valve is an automatic valve that relies on the force generated by the flow of the medium itself to automatically open and close, mainly used to prevent medium backflow. Low temperature check valve, also known as check valve, one-way valve, reflux valve or isolation valve, belongs to a type of automatic valve, especially suitable for environmental pipelines of low-temperature media such as gas, liquefied gas, liquid nitrogen, etc. with temperatures below -196 degrees.