① Check the valve limit first to see if the internal leakage of the valve can be solved by adjusting the limit.
②Inject the amount of grease first to see if the leakage can be stopped. At this time, the injection speed should be slow. At the same time, observe the change of the pressure gauge pointer at the outlet of the grease injection 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, soak for half an hour less, if you want to soak for a few hours or even days, do the next step after the solidification is completely dissolved. During this process, the movable valve can be opened and closed several times.
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 sealant grease, and open the valve cavity to vent at the same time. This can generate a large pressure difference and help seal. Generally, by injecting reinforced sealant grease Internal leakage can be eliminated.
⑥If there is still internal leakage, repair or replace the valve.
