Detailed description of dj11w-40p low temperature needle valve (low temperature long shaft needle valve)

The material of low temperature needle valve is very important. Unqualified material will cause external or internal leakage of shell and sealing surface; The comprehensive mechanical properties, strength and rigidity of parts can not meet the use requirements or even fracture. It will cause the leakage of liquefied natural gas medium and cause explosion. Therefore, in the process of developing, designing and developing liquefied natural gas valves, material is the primary key issue. After years of manufacturing, we have accumulated rich experience, from design, process to manufacturing, and have developed a series of low-temperature valve products.

Low temperature valves: including low-temperature needle valve, low-temperature ball valve, low-temperature gate valve, low-temperature stop valve, low-temperature safety valve, low-temperature check valve, low-temperature butterfly valve, low-temperature throttle valve, low-temperature pressure reducing valve, etc., which are mainly used for ethylene, liquefied natural gas devices, natural gas LPG LNG storage tanks, receiving bases and satellite stations, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide low-temperature storage tanks and tank cars Pressure swing adsorption oxygen production and other devices. The exported liquid low-temperature media, such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., are not only flammable and explosive, but also need to be gasified when heating up. When gasifying, the volume expands hundreds of times.