Operational Check - TLV J3S-X Manuel D'utilisation

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 TLV Pocket TrapMan (within
its pressure and temperature measuring range).
Condensate is discharged continuously with flash steam and the sound of
Normal:
flow can be heard. If there is very little condensate, there is almost no
sound of flow.
No condensate is discharged. The trap is quiet and makes no noise,
Blocked:
and the surface temperature of the trap is low.
Live steam continually flows from the outlet and there is a continuous
Blowing:
metallic sound.
Live steam is discharged through the trap outlet together with the
Steam
condensate and there is a high-pitched sound.
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.)
Flash Steam
White jet
containing
water droplets
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 to take appropriate corrective measures.
Problem
Float is damaged or filled with condensate
No condensate
Orifice, screen or piping is clogged with rust or
is discharged
scale
(blocked) or
Steam-locking has occurred
discharge is
poor
X-element is damaged
The trap operating pressure exceeds the maximum
specified pressure, or there is insufficient pressure
differential between the trap inlet and outlet
Rust and scale have accumulated around the
Steam is
orifice or under the float
discharged or
leaks from the Orifice is damaged
trap outlet
Float is deformed or coated with scale
(blowing)
Trap is installed above the maximum allowable
(steam leakage)
inclination angle
Vibration of trap occurs
The X-element is damaged, or clogged with rust
or scale
Steam leaks Deterioration of or damage to gaskets
from a place
Improper tightening torque for cover was used
other than
the trap outlet
Float is
Water hammer occurs
frequently
damaged
For maintenance parts and repair parts see page 5
Cause
Live Steam Leakage
Clear, slightly
bluish jet
Remedy
Replace the float
Clean
Blowdown through the
bypass or close the trap
inlet valve and allow the
trap to cool
Replace the X-element
Compare specifications
and actual operating
conditions
Clean
Replace the orifice
Clean or replace the float
Correct the installation
Lengthen inlet piping, then
fasten it securely
Clean or replace the
X-element
Replace with new gaskets
Tighten to the proper
torque
Examine the piping for
problems that can cause
water hammer