Operational Check; Inspection And Maintenance - TLV SS1NL Manuel D'utilisation

Check to make sure that the pipes connected to the trap have been installed properly.
1. Is the pipe diameter suitable?
2. Has the trap been installed within the allowable inclination and with the arrow on the body
pointing in the direction of flow?
3. Has sufficient space been secured for maintenance?
4. Have maintenance valves been installed at the inlet and outlet? If the outlet is subject to
back pressure, has a check valve been installed?
5. Is the inlet pipe as short as possible, with as few bends as possible, and installed so that the
condensate will flow naturally down into the trap?
6. Has the piping work been done with the proper methods, as shown in the table on page 8?

7. 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.
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.)
White jet
containing
water droplets

8. Inspection and Maintenance

Operational inspections should be performed at least twice per year, or as called for by trap
operating conditions. Steam trap failure may result in temperature drop in the equipment, poor
product quality or losses due to steam leakage.
WARNING
CAUTION
Flash Steam
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 and outlet isolation
valves and wait until the trap has cooled completely. Failure to do so
may result in burns.
• Be sure to use the proper components and NEVER attempt to modify
the product.
Clear, slightly
bluish jet
― 9 ―
Live Steam Leakage