BAOYI cryogenic gate valve has the minimum operating temperature of -196℃, and the product design can meet such relevant standards as BS 6364 and MESC SPE 77/200. Generally, the product is mainly applied in the low-temperature industries of liquefied natural gas, liquefied petroleum gas, air separation, ethylene, etc. BAOYI ultra-low temperature laboratory has the low-temperature test device based on computer acquired data and with proprietary intellectual property right, thus to have the detection capacity in accordance with the low leakage test requirements specified in ISO 15848 and MESC SPE 77/312.

Expanding Bonnet Neck
Outside Screw and Rising Stem

Full port design and Small Fluid Resistance
Expanding Bonnet Neck, Stuffing box design, effective protection of packing.
Stem back-seal on the request to raise the design, to ensure the safety and stability of the cavity.
The upper end of the gate is provided with a pressure relief hole to prevent abnormal boost from the middle chamber.
Stem central to prevent the valve stem instability.
According to the requirements of the design of the structure of the board of the water drop, effectively prevent condensation water into the insulation layer.
Optional belt disc spring automatic pre load packing structure and composite sealing packing, meet the requirements of low leakage testing.