TLV PowerDyne P46S Manuel D'utilisation page 12

9. Troubleshooting
If the expected performance is unachievable after installation of the trap, read chapter 5 and
chapter 6 again and check the following points for appropriate corrective measures.
Problem
Screen is clogged with rust or scale
No condensate
is discharged
Disc is sticking to valve seat (due to oil, etc.)
(blocked) or
Steam-locking has occurred
discharge is
poor
Trap capacity is insufficient
Differential pressure is low
Valve closure is obstructed by scale, etc.
Steam leakage
or blowing
Disc or valve seat is worn
(from valve
Back pressure exceeds allowable value
seat)
Trap is being used below minimum operating
pressure
Disc is sticking to top of cover (due to oil, etc.)
Foreign matter or oil film on disc or valve seat
Valve
chattering
Scratches on disc or valve seat
(Leakage)
Disc or valve seat is worn
Bypass valve is damaged or open
Leakage from a
location other
than valve seat
Cover is loose or sealing surface between
cover and body is damaged
Inlet and discharge channels may be
connected, due to erosion
Screen holder is loose or screen holder
gasket is damaged
NOTE: When replacing parts with new, use the parts list on page 5 for reference, and replace with
parts from the Maintenance Kit and/or Repair Kit. Please note that replacement parts are only
available as part of a replacement parts kit.
Cause
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Remedy
Clean
Clean
Perform a bypass blow-
down, or close the trap inlet
valve and allow the trap to
cool. Piping correction may
also be required
Change to trap of suitable
capacity
Study inlet/outlet pressure,
including rise in outlet pipe
Clean or replace screen
Replace worn parts
Use within pressure range
Use within pressure range
Clean
Clean
Replace disc or trap
Replace disc or trap
Replace or close bypass
valve
Tighten cover, or replace
trap
Replace trap (study trap
capacity)
Tighten screen holder or
replace screen holder gasket