Xiamen Dervos Valves Industry Co., Ltd

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Valve Malfunction And Maintenance Book
- Jan 23, 2017 -

1. the instrument air line jams
Because of the ball valve in the instrument branch line end function, wind line booty here may be piled up in jams. Instrument air pressure is too low, the valve cannot be fully closed or valve doesn't work.
2. air filtering pressure relief valve failure
Air filtering pressure relief valve uses too much booty for a long time, reducing air leakage, pressure reducing valve set the output pressure is too late, so the output of instrument air pressure is less than the pressure. Valve slow and don't full not even movement.
3. copper pipe connections
Aging of copper tubes air leakage, connector loose or booty blocked brass wind instrument signal pressure valve doesn't work, not full off, manual valve position is not stability control oscillation.