TLV SS3 Series, Instruction Manual

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8. Operational Check
Normal: Condensate is discharged continuously with flash steam and the sound
of flow can be heard. If there is very little condensate, there is almost no
sound of flow.
Blocked: No condensate is discharged. The trap is quiet and makes no noise,
and the surface temperature of the trap is low.
Blowing: Live steam continually flows from the outlet and there is a continuous
metallic sound.
Live steam is discharged through the trap outlet together with the
condensate and there is a high-pitched sound.
A visual inspection can be carried out to aid in determining the necessity for immediate
maintenance or repair, if the trap is open to atmosphere. If the trap does not discharge to
atmosphere, use diagnostic equipment such as TLV TrapMan or Pocket TrapMan (within its
pressure and temperature measurement range).
Steam
Leakage:
(When conducting a visual inspection, flash steam is sometimes mistaken for steam leakage. For
this reason, the use of a steam trap diagnostic instrument such as TLV TrapMan is highly
recommended.)
7. 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.
Problem
Condensate is
not discharged
Float does not float
Poor discharge of
condensate
Steam leakage
or blow-off
Clogging with dirt
Trap discharge
capacity
Clogging with dirt
Float does not seat
securely on valve
seat
Pressure exceeds
maximum operating
pressure
Pipelines upstream
or downstream of
the steam trap are
clogged
Trap capacity is too
small
Severe vibration of
trap
Pipelines upstream
or downstream of
the steam trap are
clogged
Improper trap
installation (above
the max. allowable
inclination angle)
Replace trap with appropriately
rated model or, if possible,
reduce steam pressure
Clean pipelines
Replace with larger trap
Reinforce trap piping
supports
Clean pipelines
Correct trap installation
Cause Analysis Corrective Measures
Flash Steam Live Steam Leakage
White jet
containing
water droplets
Clear, slightly
bluish jet
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