9. Troubleshooting
If the expected performance is unachievable after installation of the steam trap, read chapter 5
and chapter 6 again and check the following points to take appropriate corrective measures.
Condensate
is not
discharged
or (blocked)
discharge is
poor
X-element is stuck to the valve
seat
Clean
Steam-locking
Study piping
Differential pressure is
insufficient
Study inlet/outlet pressure
Trap operating pressure
exceeds maximum specified
operating pressure
Study inlet pressure
Screens and/or inlet/outlet
channels are clogged with rust
or scale
Clean
Problem
Cause
Remedy
Steam
leakage or
blow-off
Valve closure is obstructed by
rust or scale, etc
Clean (inspect screens as well)
X-element and/or valve seat are
worn or damaged
Replace X-element and/or valve seat
X-element is broken
Replace X-element
Severe vibration of trap
Reinforce trap piping supports
Gaskets of connector, trap
cover, screen holder or valve
seat are worn or damaged
Repair gaskets
Cover bolts, connector flange
bolts, screenholder, or valve
seat are loose
Tighten to proper torque
Inlet and discharge channels
may be connected due to
erosion
Replace trap
(study trap capacity)
Bypass valve is open or
damaged
Repair or close valve
Leakage
from
another
location
NOTE: When replacing parts with new, use the parts list on page 5 for reference, and replace with
parts from the respective replacement parts kits.
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English
