We provide a full range of low-pressure ball valves. In the production process, in order to ensure the normal operation of low-temperature ball valves in the pipeline, it is necessary to process the low-temperature valve parts through special low-temperature conditions. It is necessary to cool the parts in the medium for several hours to release the stress.  The main purpose of this operation is to ensure the low temperature performance of the material and to ensure that the size of the parts can be numerical.  At normal temperature, it is necessary to conduct strength test and low pressure sealing test on the shell of the low temperature valve.  Perform upper seal air tightness test on valve at low temperature.  Low temperature impact test is carried out on the important parts of low temperature valve.  Maintain body surface strength.  The conduction resistance between stem and body or inner and body shall be less than 1 ω.  The application of low temperature ball valve is to control temperature and prevent explosion and leakage.  

Low temperature ball valve is one of the important equipment of low temperature liquid conveying. In recent years, with the rapid development of LNG industry, cryogenic valves have been widely used in LNG receiving stations, gas stations and urban LNG pipe networks