LNG liquefied natural gas ultra-low temperature ball valve is currently the mainstream product for LNG cryogenic valves through reasonable structural design, improvement and upgrading, strength calculation, material inspection, cryogenic treatment, and cryogenic performance testing.
Cryogenic globe valve is a commonly used valve type for low-temperature medium pipelines, mainly used to cut off fluids. It has a simple and concise structure; Small opening height, quick opening and closing; During the opening and closing process, there is generally no relative sliding between the sealing surfaces, so it is not easy to wear and scratch the valve disc and valve seat. The sealing performance is good, and the service life is long.
Cryogenic check valve is a valve that automatically opens and closes the valve disc based on the flow of the medium itself, and is used to prevent medium back flow, also known as a Aetv One-way valve. Check valve is an automatic valve that primarily prevents media back flow and the discharge of container media. Check valves can be mainly divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).