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Maintenance and Repair
4.11
1" Purge and Outlet Check
Valve Maintenance
(Models OP15 through OP40)
WARNING!
Ensure that the Dryer is de-energized, valve isolated,
and fully depressurized before attempting to remove
or disassemble any Dryer component or subassembly.
Failure to do so may result in serious personal injury
and/or equipment damage.
Note: The purge orifice [5] is specifically sized and drilled
for your dryer. If the purge orifice is lost or damaged, con-
tact your local General Pneumatics Sales Representative
for the correct replacement.
Note: Do not remove poppet guides [18] from the outlet
check valve cover [14] unless wear or damage necessi-
tates replacement.
1.
Clean and inspect all valve hardware upon disassem-
bly. Replace all software and any hardware which ap-
pears damaged or abnormally worn. Closely inspect
valve poppets [23], check balls [8], purge adjusting
valve [12] and associated mating-sealing surfaces for
any faults which could prevent positive sealing.
2.
Apply an ultra-thin film of O-ring lubricant to items [6],
[7], [10], [11], [16], [17], and [22]. Do not apply lubri-
cant to check balls [8] or valve poppets [23].
1" Purge and Outlet Check Valve
Item
Description
Total
1
Pipe Plug
2
2
Sockethead Cap Screw
4
3
Sockethead Cap Screw
4
4
Flow Block
1
5
Purge Orifice
1
6
O-Ring
1
7
O-Ring
2
8
Check Ball
2
9
Purge Block
1
10
O-Ring
1
11
O-Ring
1
12
Purge Adjusting Valve
1
13
Valve Guide
1
14
Check Valve Cover
1
15
Valve Housing
1
16
O-Ring
2
17
O-Ring
1
18
Poppet Guide
2
19
Valve Spring
2
20
Washer
2
21
Retaining Ring
2
22
Square O-Ring
2
23
Valve Poppet
2
