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Valve abnormality

2017-08-29View Original

Thread Content

After the centrifugal pump is started and the outlet gate valve is opened, the valve stem of the gate valve jumps out intermittently. Is this phenomenon normal?
Reply #22017-08-29
This is abnormal. Replace the valve
Reply #32017-08-30
The gap between the valve mother wires might be too large.
Reply #42017-08-30
Could it be that some parts somewhere have become loose?
Reply #52017-09-14
Check the valve stem and the valve stem nut; there must be a problem
Reply #62017-09-15
When the outlet gate valve is opened, the valve stem jumps out intermittently (this phenomenon should not occur if the valve is fully open; check whether the valve stem has reached the reverse position). ) If this occurs when it is not fully open, consider a problem with the valve stem nut or the thread on the valve stem!
Reply #72017-09-21
1. The valve is installed too close to the water pump; 2. Flow disturbances at the inlet and outlet of the water pump affect the gate plate of the gate valve, so it is recommended to use a butterfly valve.
Reply #82017-09-21
Check the valve stem and valve stem nut. Additionally, make sure that the gate valve is opened fully when in use, as this helps to extend its service life.

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