Applications; Proper Installation; Operational Check - TLV Lounge Chair Manuel D'utilisation

5. Applications

• DO NOT USE on any application except steam tracing lines, storage tank coils, instrument
enclosures, steam trap air venting, and freeze protection of condensate lines.
• SUITABLE for steam tracing lines or storage tank coils ONLY IF the required product
viscosity will be maintained when the condensate is sub-cooled at least 15 °C (27 °F), even to the
point of the condensate having a lower temperature than the product temperature.
• SUITABLE for use on instrument enclosures ONLY IF the steam or condensate temperature
in the enclosures will NOT damage the instrument.
• SUITABLE for use as an external air vent for TLV steam traps, or as a non-freeze valve for
freeze protection of condensate lines.

6. Proper Installation

CAUTION
Note: For socket weld connections, use electric arc welding with a single pass. As internal
parts are not damaged by one pass welding, there is no need to remove them before welding.
1. Before installation, be sure to remove all protective seals.
2. Before installing the product, blow out the inlet piping to remove any piping scraps, dirt and oil.
Close the inlet valve after blowdown.
3. Verify that piping is of a suitable diameter.
4. Install in a place where caution plates (including cap) can clearly be seen during periods of
maintenance, in the lowest part of the pipeline so that condensate flows into the trap by gravity.
5. Install the product so that the arrow on the body is pointing in the direction of condensate flow.
6. The product may be installed either horizontally or vertically. However, when installing
horizontally, make sure that the product is installed with the temperature adjusting screw
positioned higher than the piping in which the product is installed. (Upside-down installation is
not permissible.)
7. When used as an automatic non-freeze valve, do not use thin-walled tubing for outlet piping.
As freezing occurs on outlet side, use a short, thick-walled pipe to discharge to atmosphere.
8. When used as an external air vent for TLV steam traps, connect to the top of the steam trap.
9. Install inlet and outlet valves to isolate the product in event of trap failure or maintenance.
10. If the product is subject to back pressure, install a check valve.
11. Open the inlet valve gradually and check to make sure that the product functions properly.

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 a stethoscope, thermometer or TLV TrapMan
(within its pressure and temperature measurement range).
Normal:
Condensate is being discharged from the discharge outlet. (The surface temperature
of the trap should be about 10 to 20 °C (20 to 40 °F) lower than the set temperature.)
Blocked: No condensate is discharged and the surface temperature of the trap is low.
Blowing: Live steam continually flows from the outlet and there is a continuous hissing sound
of flow. The surface temperature of the trap is higher than the set temperature.
(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.)
• Installation, inspection, maintenance, repairs, disassembly, adjustment
and valve opening/closing should be carried out only by trained
maintenance personnel.
• Take measures to prevent people from coming into direct contact with
product outlets.
• Install for use under conditions in which no water hammer will occur.
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