Due to the flammable and explosive characteristics of liquefied natural gas medium, it is necessary to analyze the anti-static measures comprehensively when designing the ultra-low temperature valve of liquefied natural gas. Especially for the seat of PCTEF material, there is a hidden danger of electrostatic accumulation. Electrostatic friction sparks can make liquefied natural gas explosion.
A conducting device shall be set between the valve body and stem, and between the shutoff and stem, so as to draw out static electricity and avoid safety accidents. For metal-sealed cryogenic valves, no conducting devices may be provided, but the resistance values of the shutoff, stem and body should meet the standard specification.
ZJCLV, one of the cryogenic ball valves manufacturers, it’s cryogenic valves is fully in strict accordance with the lasted API version. For more information, click on the website: www.clvvalve.com.