Troubleshooting; Operational Check - TLV SS3 Series Einbau- Und Betriebsanleitung

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 Float does not float
not discharged
Clogging with dirt
Poor discharge of Clogging with dirt
condensate
Trap discharge
capacity
Steam leakage Float does not seat
or blow-off securely on valve
seat

8. Operational Check

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).
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.
Steam
Live steam is discharged through the trap outlet together with the
Leakage:
condensate and there is a high-pitched sound.
(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.)
Flash Steam
White jet
containing
water droplets
Cause
Pressure exceeds
maximum operating
pressure
Pipelines upstream
or downstream of
the steam trap are
clogged
Pipelines upstream
or downstream of
the steam trap are
clogged
Trap capacity is too
small
Improper trap
installation (above
the max. allowable
inclination angle)
Severe vibration of
trap
̶ 9 ̶
Analysis Corrective Measures
Replace trap with appropriately
rated model or, if possible,
reduce steam pressure
Clean pipelines
Clean pipelines
Replace with larger trap
Correct trap installation
Reinforce trap piping
supports
Live Steam Leakage
Clear, slightly
bluish jet