Failure Mode
Possible Cause
Remedy
Not discharging
enough condensate.
Reduced condensate
carrying capacity of the
trap.
Check parameters and trap sizing. The
trap will not discharge enough
condensate if the actual size is below the
recommended size based on the
condensate load.
Check for back pressure and
corresponding discharge capacities as
per the capacity charts.
i) Replace/repair the leaking and non-
working traps with working traps, the
leak traps may create/increase the
back pressure on the other working
traps connected to the same return
line or,
ii) if there are more than one trap
discharging in a single condensate
return line, then ensure all the traps
have an NRV installed on the outlet of
each trap or,
iii) Ensure all the by-pass valve are closed,
if by-pass valve is leaking or if it is kept
open in closed loop condition which
creates/increases back pressure on the
other working traps, connected to the
same return line.
Flooding of condensate.
Check whether the inlet strainer is
partially blocked.
Check thermostatic valve seat orifice for
blockage. If blocked, clean and lap.
Check main valve seat orifice for
blockage. If blocked, clean and lap.
13
Single Orifice Float Trap With SLR and/ or TV
