Oxygen Pneumatic Cut-off Valve

Oxygen pneumatic shut-off valve adopts multi-spring actuator and regulating mechanism connected with three columns, the whole height can be reduced by about 30%, the weight can be reduced by about 30%. The valve body is designed as equal cross-section low flow resistance flow path according to the principle of fluid mechanics, and the rated flow coefficient is increased by 30%. The sealing part of the valve inner part has two kinds: tight type and soft sealing, the tight type is made of surfacing hard alloy, and the soft sealing type is made of soft material, which has excellent sealing performance when it is closed. Balanced type valve inner parts, improve the permissible differential pressure of the cut-off valve. Bellows sealing type of sealing formed on the moving valve stem, blocking the possibility of media leakage. Piston type actuator, large operating force, use of differential pressure.