Pneumatic valve adjustment possible faults and elimination methods

a, fault: leak sealing surface
pneumatic valve, butterfly butterfly plate, seal with sundry.
pneumatic valve, butterfly butterfly plate, sealed closed position match is not straight.
and outlet is equipped with flange bolt stress or pressure.
not according to requirements, pressure direction.
eliminate methods:
and eliminate impurities, pneumatic valve chamber cleaning.
and adjust the worm gear or electric actuator actuator limit screw, with a pneumatic valve closed position is correct.
, equipped with flange plane and bolt clamping force, should be uniform pressure.
, are spinning in the direction shown by the arrow. Fault:
2, pneumatic valve two leakage
, on both sides of the seal gasket failure.
uneven, tube flange clamp force or pressure.
eliminate methods:
and replace the sealing gasket.
, compression flange bolts ( Even push) 。

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