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Disassembly / Reassembly (to reassemble, follow procedures in reverse)
Part & No.
Cover 3
Remove with a socket wrench
Disc 4
Remove being careful not to
scratch the polished seat surface
Disc Holder
Remove without bending
Ring 5
Air Vent Ring 6
Remove without bending, as it
will not return to its proper shape
Module Valve
Remove being careful not to
Seat 2
scratch the polished seat surface
Outer Module
Remove only if worn or damaged;
Gasket 7
clean the gasket housing
Inner Module
Remove only if worn or damaged;
Gasket 9
clean the gasket housing
Screen
Remove with a socket wrench
Holder 12
Screen Holder
Remove gasket and clean sealing
Gasket 11
surfaces
Screen 10
Remove without bending
Part
P46SRN, P46SRM, P65SRN
Cover
P46SRW
Screen Holder
NOTE: - Coat all threaded portions with anti-seize.
- If drawings or other special documentation were supplied for the product,
any torque given there takes precedence over values shown here.
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
Air vent ring (bimetal) is broken or worn, causing
(blocked) or
air-binding
discharge is
Disc holder ring is broken or worn, causing air-
poor
binding
Disc is sticking to valve seat (due to oil, etc.)
Steam-locking has occurred
Trap capacity is insufficient
Differential pressure is low
During Disassembly
Tightening Torque and Distance Across Flats
N·m
250
320
100
Cause
̶ 10 ̶
During Reassembly
Coat threads with anti-seize; consult the
table of tightening torques and tighten to
the proper torque
Set on valve seat with the seat surface (the
lapped side) facing down toward the valve seat
Set on the air vent ring and make sure that it
does not sit on the valve seat surface
Reinsert without bending
Insert into the body levelly, being careful not
to tilt it or to scratch the seat surface
Replace with a new gasket if worn or
damaged
Replace with a new gasket if worn or
damaged
Coat threads with anti-seize; consult the
table of tightening torques and tighten to the
proper torque
Replace with a new gasket, coat surfaces
with anti-seize
Reinsert without bending
Torque
(lbf·ft)
(185)
(235)
(73)
Clean
Replace air vent ring
Replace disc holder ring
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
Distance Across Flats
mm
(in)
/
1
13
46
(
)
16
/
2
55
(
5
)
32
1
/
(
)
30
3
16
1 N·m 〜 〜 10 kg·cm
Remedy
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