1, directly buried all-welded ball valve can be directly buried in the ground, no need to build a tall valve well, just set a small shallow well on the ground, greatly saving construction costs and engineering time. 2, the valve seat is composed of PTFE sealing ring and spring to pressure and temperature changes have strong adaptability, will not produce any leakage within the scope of use. 3. The length and stem height of the valve body can be adjusted according to the construction and design requirements of the pipeline. 4, the valve body material is the same as the pipe material, there will be no uneven stress, and it will not be squeezed and deformed due to earthquake and vehicle passing through the ground. 5, the body is light and easy to keep warm. 6, body structure integral welding, there will be no external leakage phenomenon. 7. The anti-leakage structure of the valve stem, the bottom of the valve stem has a PTFE self-sealing gasket and an O-ring, which is composed of 2 O-rings and two PTFE gaskets to ensure no leakage. 8, the processing accuracy of the ball is very precise, light operation, no bad interference. 9, there are two kinds of welding and flange connection. 10, operation mode: handle, gear (vertical/horizontal) 11, in the case of normal operation of the valve, the warranty period is 20 years. |
