What is the reason for the leaking of the stem of the open rod gate valve? How to solve?
Perhaps the spool is broken, you go to the building materials market to buy a spool of the same type, you ask the merchant, they know what to give you.After returning home, turn the old spool off and change itIf you do not sell the spool alone, you buy a complete valve, back to the spool down, on the line.If it is that kind of pure plastic valve, then I'm sorry, I can only see the pipe and change the valve.
2. Solutions:A, tighten the packing bolt, increase the sealing surface performance.B, replacement of packing, pay attention to the correct choice of packing type, packing should be placed neatly placed, packing should be cut into 45 degrees, at the time of the joints should be staggered over 30 degrees, presses the packing, two bolts to tighten the synchronization, to prevent partial pressure.
1, the stem gate valve stem leakage is mainly due to packing aging, packing wear, loose packing, packing, packing and other factors than correct, resulting in sealing failure.
