172-65126MA-10 (FLl5/FL21/FL32/FL5-C/FL21-C/FL32-C + BD2) 10 Mar 2017
4
Checking the Piping
Use only under conditions in which no water hammer will occur. The
impact of water hammer may damage the product, leading to fluid
discharge, which may cause burns or other injury.
CAUTION
Check to make sure that the pipes to be connected to the trap have been installed
properly.
1. Is the pipe diameter suitable?
2. Has sufficient space been secured for maintenance?
3. Have isolation valves been installed at the inlet and outlet? If the outlet is subject to
back pressure, has a check valve (TLV-CK) been installed?
4. Is the inlet pipe as short as possible, with as few bends as possible, and installed so
the liquid will flow naturally down into the trap?
5. Has the piping work been done correctly, as shown in the figures below?
Requirement
Correct
Incorrect
Install catchpot with the proper
diameter.
Diameter is too small.
Make sure the flow of
condensate is not obstructed.
Diameter is too small and inlet
protrudes into pipe interior.
To prevent rust and scale
from flowing into the trap, the
inlet pipe should be connected
25 – 50 mm (1 – 2 in) above
the base of the T-pipe.
Rust and scale flow into the
trap with the condensate.
When installing on the blind
end, make sure the flow of
condensate is not obstructed.
Condensate collects in the
pipe.
