1. Cryogenic gate valve is specially designed for cryogenic service with extended bonnet to reduce cold transfer to packing box and protect packing seal.
2. Valve designed in accordance with BS 6364 and ASME B16.34, with cryogenic treatment, suitable for LOX, LIN, LNG and other cryogenic media.
3. Body, gate and internal parts adopt cryogenic resistant materials and undergo cryogenic stabilization treatment.
4. Widely used in LNG plants, air separation units and cryogenic storage tank pipelines for shut-off of cryogenic media.
1. Extended bonnet structure isolates cold energy, protects packing box and prevents packing from icing and failure.
2. All pressure containing parts are subject to cryogenic pre-treatment to eliminate dimensional shrinkage and deformation under low temperature.
3. Gate and seat mating seal pair delivers reliable sealing performance under cryogenic service.
4. Anti blow-out stem structure ensures safe operation in cryogenic conditions.
5. Unidirectional flow. Pressure relief hole is arranged at inlet to prevent overpressure caused by vaporization of trapped liquid medium inside cavity after valve closure.