7
．
Troubleshooting
No.
Problem
Possible causes
Countermeasures
1
Reduction of the set pressure
Fluctuation of flow rate at the downstream side
Set the pressure again.
Return the flow rate at the downstream side to the initial rate.
Leakage due to deterioration of the
rubber part.
Ozone
Use the ozone resistant product (80- series).
Temperature
Avoid using at high temperature or low temperature.
Organic solvent
etc.
Take countermeasures to prevent organic solvent from the ambient
atmosphere or fluid.
High frequency ON-OFF operation on the downstream
side.
Set the pressure again.
Pressure in the bonnet is reduced.
Release the pressure in the bonnet which is the reference pressure to
the atmosphere.
2
