16
Maintenance
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
When using this product, NEVER stand close to, or leave tools anywhere
near moving parts, such as the shaft.
Contact with moving parts or objects becoming caught in moving parts
could lead to injury, damage or other accidents.
CAUTION
BT3N/MBT3N/PBT3N: Operational Check of the Steam Trap
The following inspections should be carried out only after making sure that the bypass
valve is closed: A visual inspection of the following items should be done on a daily
basis to determine whether the trap is operating properly or has failed. Periodically (at
least biannually) the operation should also be checked by using diagnostic equipment,
such as a stethoscope or thermometer. (Inspection, installation, maintenance, repairs,
disassembly, adjustment and valve opening/closing should be carried out only by
trained maintenance personnel.)
To determine whether the bypass valve is closed, make sure that the flat surfaces of
the spindle (BT3N) or the shaft coupling (MBT3N and PBT3N) are perpendicular to
the piping.
If the valve is not fully closed when the flat surfaces are in this position, there is a
problem. Refer to the “Troubleshooting” section to determine the cause, then correct
the problem.
If the trap or bypass blowdown valve should fail, it may cause damage to piping and
equipment, resulting in faulty or low quality products or losses due to steam leakage.
Normal
: Condensate, together with flash steam, is discharged
continuously, accompanied by the powerful rushing sound of
flow. When the amount of condensate being discharged is very
slight, the sound of flow is almost inaudible.
Blocked
(Discharge
Impossible)
: No condensate is discharged. The trap is quiet and makes no
noise, and the surface temperature of the trap is low.
Blowing
: Live steam continuously flows from the outlet and there is a
continuous piercing metallic sound.
Steam Leakage : Live steam is discharged through the outlet together with the
condensate and there is a high-pitched hissing 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 - in conjunction with the visual inspection is highly recommended.)
172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013
