Replacement Parts List

MODEL 375
Reduced Pressure Principle
Backow Preventers 1 1/4” to 2”
ITEM
NO.
DESCRIPTION 1 1/4” 1 1/2” 2”
1 HOUSING 374-1 374-1 374-1
2 INTEGRAL INLET BV 374-48A 375-48A 376-48A
3 O-RING 331N 331N 331N
4 SLEEVE 374-2 374-2 374-2
5 O-RING 337N 337N 337N
6 BOLT 352-11 352-11 352-11
7 TEST COCKS 14-860 14-860 14-860
8 BOLT 959-11B 959-11B 959-11B
9 INTEGRAL OUTLET BV 374-48B 375-48B 376-48B
10 SEAT, #1 374-18A 374-18A 374-18A
11 SPRING, #1 374-33A 374-33A 374-33A
12 SPRING RETAINER, #1 374-80A 374-80A 374-80A
13 BOLT 374-11A 374-11A 374-11A
14 SEAL RETAINER 374-14A 374-14A 374-14A
15 SEAL WASHER 374-12A 374-12A 374-12A
16 POPPET 374-30 374-30 374-30
17 O-RING 336N 336N 336N
18 SEAT, #2 374-18B 374-18B 374-18B
19 SPRING, #2 374-33B 374-33B 374-33B
20 SPRING RETAINER, #2 374-80B 374-80B 374-80B
21 SEAL WASHER 374-12 374-12 374-12
22 SEAL RETAINER 374-14CU 374-14CU 374-14CU
23 BOLT 952-11 952-11 952-11
24 O-RING 334N 334N 334N
25 NUT 5752-9 5752-9 5752-9
26 O-RING WK-109N WK-109N WK-109N
27 BODY, RV 374-1CU 374-1CU 374-1CU
28 SEAT, RV 374-18CU 374-18CU 374-18CU
29 SPRING GUIDE 374-80CU 374-80CU 374-80CU
30 SPRING, RV 374-33CU 374-33CU 374-33CU
31 DIAPHRAGM 374-43 374-43 374-43
32 PLUNGER, RV 374-34 374-34 374-34
33 O-RING 123N 123N 123N
34 O-RING 243N 243N 243N
35 COVER 374-3 374-3 374-3
36 BOLT 374-11 374-11 374-11
37 SPACER 374-2A 374-2A –
38 #1 CHECK ASSY 374-300A 374-300A 374-300A
39 #2 CHECK ASSY 374-300B 374-300B 374-300B
40 RELIEF VALVE STEM ASSY 374-50 374-50 374-50
41 VESSEL W/CHECKS & RV RK114-375V RK114-375V RK114-375V
42 HOUSING, BLOW OUT/FLUSH RK114-350-375BOF RK114-350-375BOF RK114-350-375BOF
42
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