6. Operational Check
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.
If the trap shows signs of blockage, blowing or air leakage, perform manual blowdown by pushing
the plunger in several times with a fingertip to allow dirt and oil to be discharged through the
orifice. If this does not remedy the problem, follow the instructions under chapter 8,
“Troubleshooting”.
Operational inspections should be performed at least twice per year, or as called for by trap
operating conditions. Faulty air traps may result in losses due to air leakage.
Normal:
Condensate is discharged continuously 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.
Blowing:
Air continually flows from the outlet and there is a continuous high-pitched sound
of flow.
Air Leakage: Air is discharged through the trap outlet together with the condensate,
accompanied by a high-pitched sound.
7. Inspection and Maintenance
WARNING
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury or
property and equipment damage.
• Installation, inspection, maintenance, repairs, disassembly, adjustment
and valve opening/closing should be carried out only by trained
maintenance personnel.
• Before attempting to open the trap, close the inlet valve and the valve in
the pressure-balancing line and wait until the trap has cooled to room
temperature. Reduce the internal pressure to atmospheric pressure by
pushing the cleaning plunger in with your finger so that condensate and
air can escape from inside the body. Failure to do so may result in burns
or injuries.
• Be sure to use the proper components and NEVER attempt to modify the
product.
CAUTION
Body, Cover
Gaskets
Screen
Float
Plunger O-Ring
Valve Seat Opening
Check inside for dirt, grease, oil film, rust or scale
Check for warping or damage
Check for clogging, corrosion or damage
Check for deformation, damage, oil film or water inside
Check for warping or damage
Check for rust, scale, oil film, wear or damage
Parts Inspection Procedure
̶ 9 ̶
English
