9. Troubleshooting
If the expected performance is unachievable after installation of the steam trap, read chapters 4
and 5 again and check the following points for appropriate corrective measures.
NOTE: When replacing parts with new, use the parts list on page 11 for reference, and replace with
parts from the respective replacement parts kits.
Problem
No condensate
is discharged
(blocked) or
discharge is
poor
Steam is
discharged or
leaks from the
trap outlet
(blowing)
(steam leakage)
Steam leaks from
a place other
than the trap
outlet
Float is damaged or filled with condensate
The trap operating pressure exceeds the maximum
specified pressure, or there is insufficient pressure
differential between the trap inlet and outlet
Compare specifications
and actual operating
conditions
Steam locking has occurred
Blowdown through the
bypass or close the trap
inlet valve and allow the
trap to cool
Rust and scale have accumulated around the
orifice or under the float
Clean
Deterioration of or damage to gaskets
Leakage from eroded cavities of body or cover
Improper tightening torque for cover was used
Replace the gaskets
Replace the trap
Float is
frequently
damaged
Water hammer occurs
Examine the piping for
problems that can cause
water hammer
Orifice is damaged
Replace with new orifice
Float is deformed or coated with scale
Clean or replace the float
Trap is installed above the maximum allowable
inclination angle
Correct the installation
Vibration of trap occurs
Lengthen inlet piping,
then fasten it securely
The X-element is damaged, or clogged with rust or
scale.
Clean or replace the
X-element
Replace the float
Cause
Remedy
Orifice, screen or piping are clogged with rust or
scale
Tighten to the proper
torque
X-element is damaged
Replace the X-element
Clean
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English
