Cryogenic Ball Valve

A cryogenic ball valve is a high-performance quarter-turn isolation valve specialized for managing intermittent and continuous fluid streams at extreme temperatures. Engineered to control liquefied gases such as LNG, liquid oxygen, hydrogen, and nitrogen, these valves feature an elongated bonnet extension that moves the stem packing away from the cryogenic cold zone to prevent freezing and ensure live-loaded, zero-leak sealing. The internal ball is designed with a critical upstream relief hole to vent dangerous overpressure caused by thermal expansion within the body cavity. Compliant with strict safety codes like BS 6364 and ASME B16.34, this low temperature ball valve is indispensable for air separation plants, LNG transport trailers, terminal unloading stations, and aerospace fueling systems. To ensure uncompromised safety and exceptional thermal endurance, global engineering networks can source certified, pressure-tested cryogenic ball valves directly from elite manufacturers in China via our specialized B2B marketplace.