172-65176MA-03 (UFO3 Series) 27 Aug 2015
11
Troubleshooting
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
If the product fails to operate properly, use the following table to locate and remedy
the cause.
Problem
Cause
Remedy
No condensate
is discharged
(blocked) or
discharge is
poor
The UFO ball-bucket is stuck to the drain-jet Clean Parts
The drain-jet valve port, screen or piping is
clogged with rust or scale
Clean parts
The steam trap has an insufficient capacity Compare specifications with
actual operating conditions
The trap operating pressure exceeds the
maximum specified pressure, or whether
there is insufficient pressure differential
between the trap inlet and outlet
Compare specifications and
actual operating conditions
Steam-locking has occurred
Perform a bypass blowdown or
close the trap inlet piping and
allow the trap to cool
Steam is
discharged or
leaks from the
outlet
(blowing)
(steam leakage)
Build-up of rust or scale on the drain-jet
valve port or on the UFO ball-bucket surface
Clean parts
Drain-jet is damaged
Replace with a new drain-jet
The UFO ball-bucket is misshapen or
damaged
Replace with a new UFO ball-
bucket
Improper installation orientation
Correct the installation
The bimetal strip is damaged
Replace with a new bimetal strip
Trap vibration
Lengthen the inlet piping and
fasten it securely
Steam is leaking
from a place
other than the
outlet
Gasket deterioration or damage
Replace with new gasket(s)
Improper tightening torques were used
Tighten to the proper torque
NOTE: -Blowing may occur on bucket-type steam traps used at less than 10% of their
maximum discharge capacity. Therefore, do not use this trap for applications in which
only small quantities of condensate are produced.
-When replacing parts with new, use the parts list for reference, and replace with parts
from the Maintenance kit, Repair kit, etc. Please note that replacement parts are only
available as part of a replacement parts kit.
