18
Fault
Cause
Remedy
Insufficient condensate
discharge.
Insufficient thermal output for
the user.
The shut-off valves for
condensate inlet or outlet are
closed.
Open the shut-off valves.
The condensate inlet or outlet
is dirt clogged.
Clean the pipes.
Clean the equipment.
Replace the membrane regulator capsule
and the nozzle insert.
Steam pressure and
condensate flowrates fluctuate
considerably.
The pressure upstream of the
steam trap is too low for the
used trap type.
Use a different steam trap type.
Contact the manufacturer to find out
which trap type is the most suitable for
your application.
The steam trap is undersized. Use a steam trap with a larger
condensate discharge capacity.
The differential pressure is too
small.
Increase the steam pressure.
Lower the pressure in the condensate
line.
Check the size of the condensate line.
Install a steam trap with a larger
condensate discharge capacity, a pump
steam trap or a condensate return unit.
The distance between the drain
point and the steam trap is too
small.
Install the uninsulated steam trap approx.
1 - 2 m away from the drain point.
Do not insulate the condensate line and
lay it with a gradient so that the
condensate is free to fall towards the
steam trap.
The condensate line does not
have a slight fall from the the
drain point towards the steam
trap.
The condensate is lifted
upstream of the steam trap.
Lay the condensate line with a gradient
so that the condensate is free to fall
towards the steam trap.
Change the orientation of the condensate
line.
The condensate temperature is
higher than the service
temperature of the steam trap.
The regulator does not open or
only with a time delay.
If the steam trap of the condensate line is
insulated remove the insulation.
Use a different steam trap type.
