Replacement Parts List

40
MODEL 375XL
Lead-Free* Reduced Pressure Principle
Backow Preventers 1/2” to 1”
*This product is lead-free, containing a weighted average lead content less than 0.25% for wetted surfaces.
ITEM
NO.
DESCRIPTION 1/2" 3/4” 1”
1 WEDGE SCREW 372-11B 372-11B 373-11B
2 WEDGE 372-23 372-23 373-23
3 O-RING, SLEEVE 118N 118N 216N
4 SLEEVE 372-2 372-2 373-2
5 O-RING, #1 CHECK SEAT 124N 124N 225N
6 #1 CHECK SEAT 372-18A 372-18A 373-18A
7 POPPET SCREW 30-11 30-11 952-11
8 CHECK SEAL RETAINER 372-14A 372-14A 373-14A
9 CHECK SEAL RING 372-12A 372-12A 373-12A
10 POPPET 372-30 372-30 373-30
11 #1 CHECK SPRING 372-33A 372-33A 373-33A
12
#1CHECK SPRING RETAINER
372A-80A 372A-80A 373A-80A
13 O-RING, #2 CHECK SEAT 124N 124N 223N
14 #2 CHECK SEAT 372-18B 372-18B 373-18B
15 #2 CHECK SPRING 372-33B 372-33B 373-33B
16
#2 CHECK SPRING RETAINER
372A-80B 372A-80B 373A-80B
17 O-RING, HOUSING INLET 130N 130N 227N
18 TEST COCK 18-860XL 18-860XL 18-860XL
19 CHECK HOUSING 372-1 372-1 373-1
20 O-RING, HOUSING OUTLET 119N 119N 218N
21 O-RING, RV COVER 010N 010N 010N
22 O-RING, RV SEAT WK-018N WK-018N WK-018N
23 RELIEF VALVE SEAT 372-18 372-18 372-18
24 RELIEF VALVE SPRING 372-33CU 372-33CU 372-33CU
25
RV SEAL RETAINING SCREW
372-11C 372-11C 372-11C
26 RV SEAL RING 372-12 372-12 372-12
27 RV LOWER PLUNGER 372-34A 372-34A 372-34A
28 DIAPHRAGM 372-43 372-43 372-43
29 RV UPPER PLUNGER 372-34 372-34 372-34
30 O-RING, RV STEM 015N 015N 015N
31 RELIEF VALVE COVER 372-3 372-3 373-3
32 RV COVER SCREW, SHORT 372-11B 372-11B 372-11B
RV COVER SCREW, LONG 372-11 372-11 N/A
33 INLET BALL VALVE
RK12-375XLBV1 RK34-375XLBV1 RK1-375XLBV1
34 OUTLET BALL VALVE 371-48BXL 372-48BXL 373-48BXL
35 #1 CHECK ASSEMBLY 372-300A 372-300A 373-300A
36 #2 CHECK ASSEMBLY 372-300B 372-300B 373-300B
37 RELIEF VALVE STEM ASSY 372-50 372-50 372-50
38 COMPLETE VESSEL ASSY RK34-375V RK34-375V RK1-375V
39
HOUSING, BLOW OUT/FLUSH
372-1BOF 372-1BOF 373-1BOF
REPAIR KIT COMPLETE RK34-375
1/2” - 3/4” 375XL
RK1-375
1” 375XL
DESCRIPTION PART NO. QTY. PART NO. QTY.
#1 CHECK ASSEMBLY 372-300A 1 373-300A 1
#2 CHECK ASSEMBLY 372-300B 1 373-300B 1
RELIEF VALVE STEM ASSY 372-50 1 372-50 1
O-RING, SLEEVE 118N 1 216N 1
O-RING, HOUSING INLET 130N 1 227N 1
O-RING, HOUSING OUTLET 119N 1 218N 1
O-RING, RV COVER 010N 1 010N 1
O-RING, RV SEAT WK-018N 1 WK-018N 1
RELIEF VALVE SEAT 372-18 1 372-18 1
RELIEF VALVE SPRING 372-33CU 1 372-33CU 1
REPAIR KIT, RUBBER ONLY RK34-375R
1/2” - 3/4” 375XL
RK1-375R
1” 375XL
DESCRIPTION PART NO. QTY. PART NO. QTY.
O-RING, #1 CHECK SEAT 124N 1 225N 1
O-RING, #2 CHECK SEAT 124N 1 223N 1
CHECK SEAL RING 372-12A 2 373-12A 2
O-RING, SLEEVE 118N 1 216N 1
O-RING, HOUSING INLET 130N 1 227N 1
O-RING, HOUSING OUTLET 119N 1 218N 1
O-RING, RV COVER 010N 1 010N 1
O-RING, RV SEAT WK-018N 1 WK-018N 1
RELIEF VALVE SEAL RING 372-12 1 372-12 1
DIAPHRAGM 372-43 1 372-43 1
O-RING, RV STEM
015N 1 015N 1
REPAIR KIT, VESSEL ASSY RK34-375V
1/2” - 3/4” 375XL
RK1-375V
1” 375XL
DESCRIPTION PART NO. QTY. PART NO. QTY.
VESSEL W/CHECKS AND RV ITEM 38 1 ITEM 38 1
REPAIR KIT, WEDGE ASSY RK34-375W
1/2” - 3/4” 375XL
RK1-375W
1” 375XL
DESCRIPTION PART NO. QTY. PART NO. QTY.
O-RING, SLEEVE 118N 1 216N 1
SLEEVE 372-2 1 373-2 1
WEDGE 372-23 1 373-23 1
WEDGE SCREW 372-11B 2 373-11B 2
REPAIR KIT
BLOW OUT/FLUSH FITTING
RK34-375BOF
1/2” - 3/4” 375XL
RK1-375BOF
1” 375XL
DESCRIPTION PART NO. QTY. PART NO. QTY.
HOUSING, BLOW OUT/FLUSH 372-1BOF 1 373-1BOF 1
O-RING, HOUSING INLET 130N 1 227N 1
O-RING, HOUSING OUTLET 119N 1 218N 1
REPAIR KITS
a company
®
®