Operating problems
INOXPA S.A.U.
10.250.30.02EN · (0) 2019/09
13
7. Operating problems
The upper shaft does not rise during impulses
The individual seats do not clean
Internal leak of product (valve closed)
Jerky valve operation
PROBABLE CAUSES
SOLUTIONS
•
The seal or guide bushing is worn, damaged or
jammed
Replace the seals
Replace the seals with others of a different
material or grade that is more suitable for the
product
Lubricate with soapy water or a lubricant that is
compatible with the seal material and the product
•
Normal seal wear
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
Lower the operating temperature
•
Product residue has deposited on the valve seat
and/or plug
Clean frequently
•
Product pressure exceeds the actuator
specifications
Reduce the product pressure
•
Excessive product pressure in upper body
Reduce the product pressure
•
Loss of seal (vibrations)
Tighten loose parts
• •
Insufficient time for impulses
Adjust cleaning time in control system
•
Insufficient air pressure
Increase the compressed air pressure
