Graco P20-VM - Pneumatic Back Pressure Regulators Part Numbers 233810 and 234257

Parts
18 309474U
Pneumatic Back Pressure Regulators
Part Numbers 233810 and 234257
25
24
21
17
10
12
13
11
15
14
2
3
4
1
10
4
8
9
23
16
2
1
3
4
26
27
Torque to 4-5 N•m (35-44 in-lb).
Torque to 2 N•m (18 in-lb).
Torque to 5 N•m (44 in-lb).
Grease OD.
Used only on non-npt model 233810.
Used only on npt model 234257.
Apply medium-strength (blue) thread
locker to the threads.
1
2
3
4
5
6
5
5
TI11250a
6
6
7
7
Ref. Part Description Qty.
1 ---- HOUSING, lower, for 233810 1
---- HOUSING, lower, for 234257 1
2 245369 SEAT, valve 1
3 15Y036 O-RING 1
4 15Y035 O-RING 1
8 15A143 COVER 1
9 117123 SCREW, fhms, M4x10 2
10 15A219 RING, for non-npt model
233810
2
11 117101 PLUG, threaded 2
12 117085 SEAL, ring 1
13 117099 PLUG, threaded 1
14 245373 PLUNGER, valve 1
15 15A179 DIAPHRAGM 1
16 15A204 PISTON 1
17 117122 NUT, seal-lock 1
21 117102 SEAL, flat 1
23 15A185 PACKING, PTFE with carbon 1
24 15A191 HOUSING, upper 1
25 117127 SCREW, shcs, M5x35 8
26 15C332 FITTING, for npt model 234257
only
1
27 15C333 WASHER, for npt model
234257 only
1
Ref. Part Description Qty.