9. Troubleshooting
If the expected performance is unachievable after installation of the steam trap, read chapters 5
and 6 again and check the following points for appropriate corrective measures.
NOTE: When replacing parts with new, use the parts list on page 6 for reference, and replace with
parts from the Maintenance Kit and/or the Trap Unit.
No condensate is
discharged
(blocked), or
discharge is poor
Pressure exceeds maximum
operating pressure
Problem
Cause
Corrective Measures
Replace trap with appropriately rated model
or, if possible, reduce steam pressure
Clean the pipelines
Clean screen or channels
Replace the trap body with a new one
Replace with larger trap
Perform a bypass blowdown, or close the
trap inlet valve and allow the trap to cool
Correct the installation
Reinforce trap piping supports
Examine the piping for problems
Tighten to the proper torque (see page 7)
or replace gaskets
Pipelines upstream or down-
stream of the trap are clogged
In the connector body, the
screen or the inlet and outlet
channels are clogged
In the trap body, the inlet and
outlet channels are clogged
The trap capacity is too small
Steam locking has occured
Trap is installed above the
maximum allowable inclination
Severe vibration of trap
Water hammer has occurred
Screen holder gasket or
connector gaskets are loose or
damaged
Steam leakage or
blow-off
Steam leaks from
a place other than
the outlet
― 13 ―
English