What Is An Ultra-Low Temperature Valve?

Ultra-low temperature valve refers to the valve for medium temperature below -150℃. Due to the ultra-low temperature environment, ordinary valve materials will be embrittlement, cold and brittle reactions, resulting in reduced valve sealing performance, unstable performance and other problems, so special materials and processes need to be used to ensure that the valve can work normally in the ultra-low temperature environment.

Ultra-low temperature valves usually use low temperature resistant materials such as nickel-based alloys and stainless steel, as well as special surface treatment processes to improve their low temperature resistance and wear resistance. At the same time, the structure and design of the ultra-low temperature valve also need to fully consider the impact of the ultra-low temperature environment, such as the use of multi-level sealing structure, increasing the insulation layer.

Ultra-low temperature valves are widely used in various ultra-low temperature industrial fields, such as liquefied natural gas, liquefied ethylene, liquefied hydrogen and other liquid gas storage and transportation devices. In these fields, ultra-low temperature valves are used to control and regulate the flow and pressure of ultra-low temperature gases or liquids to ensure the safety, stability and efficiency of industrial production.

Ultra-low temperature valves are mainly used for liquefied natural gas (LNG) ships. LNG carriers are dedicated ships for transporting LNG in a low temperature environment of minus 162 ° C, so ultra-low temperature valves are needed to control and regulate the flow and pressure of LNG.

LNG carrier is known as the "pearl in the crown" of the world shipbuilding industry, is a typical high-tech, high value-added ship. Ultra-low temperature valve is one of the key equipment of LNG carrier, its stability and reliability are very important to ensure the safety and performance of the ship.

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