
Parts
14
309474U
Mechanical Back Pressure Regulators
Part Numbers 233812 and 234258
Torque to 6 N•m (53 in-lb).
Torque to 2 N•m (18 in-lb).
Fill internal cavity with grease.
Used only on non-npt model 233812.
Torque to 5 N•m (44in-lb).
Apply medium-strength (blue) thread
locker to the threads.
1
2
3
5
6
28
25
26
24
22
21
20
19
18
10
12
13
11
17
15
14
2
3
4
1
10
4
8
9
23
16
27
2
1
3
5
5
TI11248a
6
7
7
Ref. Part
Description
Qty.
1
----
HOUSING, lower, for 233812
1
----
HOUSING, lower, for 234258
1
2
245369
SEAT, valve
1
3
15Y036
O-RING
1
4
15Y035
O-RING
2
8
15A143
COVER
1
9
117123
SCREW, fhms, M4x10
2
10
15A219
RING, for non-npt model
233812 only
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
15A173
CAP, spring
1
17
117122
NUT, seal-lock
1
18
15A175
PLATE, spring, bottom
1
19
117096
SPRING, compression
1
20
117092
SPRING, compression
1
21
15A176
PLATE, spring, top
1
22
117108
BALL, 8 mm
1
23
15A186
PACKING, PTFE with carbon
1
24
245366
HOUSING, upper
1
25
117129
SCREW, shcs, M5x80
8
26
117017
WASHER
8
27
15A141
BONNET, cover
1
28
15A242
SCREW, custom
1
Ref. Part
Description
Qty.