Parts
309474K 19
Pneumatic Back Pressure Regulators
Part Nos. 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.
1
2
3
4
5
6
5
5
TI11250a
6
6
Ref.
No. Part No. 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.
No. Part No. Description Qty.
