①First check the valve limit to see if the internal leakage of the valve can be solved by adjusting the limit.
②Inject a certain amount of grease first to see if the leakage can be stopped. At this time, the injection speed must be slow. At the same time, observe the change of the pressure gauge pointer at the outlet of the grease gun to determine the internal leakage of the valve.
③If the leakage cannot be stopped, it is possible that the sealing grease injected early becomes hard or the sealing surface is damaged, causing internal leakage. It is recommended to inject the valve cleaning fluid at this time to clean the valve sealing surface and valve seat. Generally, it should be soaked for at least half an hour. If necessary, it can be soaked for several hours or even days. After the solidified material is completely dissolved, do the next step. It is best to open and close the active valve several times during this process.
④Inject grease again, open and close the valve intermittently, and drain impurities out of the back cavity and sealing surface of the valve seat.
⑤Check in the fully closed position. If there is still leakage, inject reinforced grade sealing grease, and open the valve cavity to vent at the same time. This can produce a large pressure difference and help seal. In general, by injecting reinforced grade sealing grease Internal leakage can be eliminated.
⑥If there is still internal leakage, repair or replace the valve.
