BAOYI cryogenic check 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.

·The valve clack can be opened under small differential pressure;
·The subzero treatment process is adopted to ensure low-temperature structure stability;
·Built-in structure, no external leakage point, and more reliable use.