7. Operating problems
Water hammer
Valve does not open/close
Internal leak of product (valve closed)
The valve plug is sticking
CAUSAS PROBABLES
SOLUCIONES
• The seal or guide bushing is worn, deteriorated
or has gotten stuck
Replace the seals.
Replace the seals with ones made of a different
material or grade that is more appropriate for the
product.
Lubricate with soapy water or a lubricant that is
compatible with the seal material and the product.
•
Insufficient air pressure
Increase the compressed air pressure.
•
Normal wear of seals
Replace the seals.
•
Premature wear of the seal / affected by the
product
Replace the seals with ones made of a different
material or grade that is more appropriate for the
product.
Reduce the pressure in the line.
Reduce the working temperature.
•
Product residue has been deposited on the
valve seat and/or plug
Clean frequently.
•
Excess product pressure
Connect an auxiliary compressed air nipple on the
side of the spring (to offset the excess pressure)
without exceeding 4 bar.
Reduce the product pressure.
•
Loss of seal (vibrations)
Tighten loose parts.
•
Product pressure exceeds the actuator
specifications
Reduce the product pressure.
Use auxiliary air on the spring side.
•
Warping of seals
Replace the seals with ones of a different quality,
if they have deteriorated prematurely.
•
The direction of flow is the same as the direction
of closing
The direction of flow should go against the direc
-
tion of closing.
Choke the air discharge to reduce the pressure.
Operating problems
INOXPA S.A.U.
10.260.30.01EN · (A) 2022/09
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