Abnormal operation of valve switch is one of the most common valve faults. There are many reasons for this situation, including the following:
Lever Ball Valve Handle
(1) The valve seat is locked with the ball due to the long-term lack of effective maintenance of the ball valve, which causes the valve to remain stationary or other abnormal conditions when in use;
(2) Most foreign bodies entering the natural gas pipeline accumulate around the seat, which affects the normal operation of the valve stem. Foreign bodies include sand, dust, aging and hardened sealing grease, etc.;
Extended Stem Ball Valve
(3) If there is water in the natural gas, the water will be liquefied in different transportation environments, and the condensed water will flow to the lower pivot of the lowest end of the valve or the lower end of the body. When the temperature is lower than 0℃, the remaining water will condense into ice and affect the normal operation of the valve.
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