Hydrogen is pressurized and loaded into tube train vehicles; what types of valves are used in high-pressure hydrogen pipelines?
Thread Content
In the PSA hydrogen production system, the purified hydrogen is pressurized using a hydrogen compressor and then filled into tube trailers, with the final pressure reaching 20 MPa. Currently, 304 stainless steel pipes are used for the high-pressure hydrogen pipelines, and the valves employed are stainless steel (316L) globe valves of domestic manufacture; these valves are quite bulky, difficult to operate, require the use of F-ratchets to open and close, and are prone to damage. Is there a valve suitable for high-pressure hydrogen that can be used on filling pipelines and is also easy to operate? . . . , seeking a standard material sharing group
For high-pressure hydrogen pipelines, the common valves include the following: 1. Globe valve: Used to control the flow of fluid, enabling it to be stopped or the flow rate to be regulated. In high-pressure hydrogen pipelines, stainless steel (such as 316L) globe valves are commonly used. 2. Control valve: Used to regulate the flow rate and pressure of the fluid; by adjusting the opening degree of the valve, the flow rate or pressure of hydrogen can be controlled. 3. Safety valve: Used to protect the piping system from damage caused by high pressure. When the pipeline pressure exceeds the set value, the safety valve opens automatically to release gas. 4. Solenoid valve: Operated electromagnetically, it is used in high-pressure hydrogen pipelines to remotely control the opening and closing of the gas flow. Regarding the issues of bulkiness and difficulty in operation you mentioned, it may be necessary to consider changing the type or brand of the valves in the high-pressure hydrogen pipeline. You can consult professional suppliers or manufacturers to find valves that are more suitable for your application requirements. At the same time, please make sure to choose products that meet relevant technical standards and safety requirements, and ensure that installation and maintenance are carried out strictly in accordance with the correct procedures. .
Currently, the pipe materials used in China’s hydrogen industry are mainly 316L/316, while high-pressure valves are mostly imported from abroad, produced by domestic joint ventures, or come from a small number of domestic brands. I work in the hydrogen industry and am willing to communicate with you to learn*.
The diameter of yours is a bit small; otherwise, a zero-friction telescopic ball valve could be used – it’s easy to operate, offers good sealing performance, and has a long service life