Buried fully welded ball valve 01

The anti-leakage structure of the stem of the buried all-welded ball valve 01, the bottom of the stem has a PTFE self-sealing gasket and an O-ring, with 2 O-rings and two PTFE gaskets No leakage. The material of the valve body is the same as the material of the pipeline, so there will be no uneven stress, and it will not be deformed due to earthquakes and vehicles passing through the ground.