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10 313342D
Common Parts
▲ Replacement Danger and Warning labels, tags, and
cards are available at no cost.
* Parts included in Seal Kit 234098 (purchase sepa-
rately).
† Parts included in Rebuild Kit 234131 (purchase sep-
arately).
Repair kits 234098 and 234131 work for either
255478 or 245846 dosing valves.
Varying Parts
✿ Optional. Use if your valve doesn’t use recirculation
valves, sample valves, or thermo-wells.
✖ Series A valves used the 598140 5/32 OD fitting.
Series B valves use the 112781 1/4 in. OD fitting.
Ref. Part No. Description Qty.
3 15A841 PISTON, valve 1
5 15B545 ROD, piston 1
6 15A834 ROD, tie 2
7 15A835 NUT, packing 1
9▲ 15H108 LABEL, pinch point 1
10† 245850 STEM, needle and ball 1
11 111040 NUT, lock, insert, nylock, 5/16 1
12*† 117336 O-RING 1
13*† 117370 O-RING 1
14*† 117337 O-RING 1
15† 109141 SPRING, compression 1
16 102040 NUT, lock, hex 2
17*† 117334 PACKING, UHMWPE; blue 6
18*† 189901 GLAND, male 1
19*† 117335 PACKING, leather 5
23*† 111959 O-RING 1
24† 15A830 SEAT 1
25*† 15T260 O-RING, solvent resist WHT 2
27 102637 SCREW, cap; 3-16 x 1/2 in. 4
Ref.
Description
Dosing Valve
Qty.255478 245846
1 FITTING, tube, elbow 112781 598140 2
2 CAP, valve 15R975 15A840 1
4 CYLINDER, valve 15R974 15A840 1
8 HOUSING, outlet 15R973 15A833 1
26 HOUSING, seat 15M936 15A832 1
29✿
PLUGE, pipe; 3/8 npt 198292 N/A 1
30 TAG, instruction 15B678 N/A 1
31 PLUG, port, pressure
transducer
198241 N/A 1
32 O-RING, solvent resis-
tant
121399 N/A 1
33✿
PLUG, pipe; 1/2 npt 100361 N/A 1
36 O-RING, PTFE 121139 N/A 1