Replacement Part List

34
Form No. 480-023 Zurn Wilkins Repair Kits Guide, 3/19
For additional information, please visit www.zurn.com.
MODEL 375XL and 375
Reduced Pressure Principle – Backflow Preventers 1/2" to 1"
Repair Kit Components
1/2" 3/4" 1/2" and 3/4" 1"
Item # Item Description
RK12-375XLBV1 RK12-375BV1 RK12-375XLBV2 RK12-375BV2 RK34-375XLBV1 RK34-375BV1 RK34-375XLBV2 RK34-375BV2 RK34-375 RK34-375R RK34-375V RK34-375W RK34-375BOF RK34-375FLUSH RK34-375-RVCOVER RK34-375XLBVHD RK34-375BVHD RK1-375XLBV1 RK1-375BV1 RK1-375XLBV2 RK1-375BV2 RK1-375 RK1-375R RK1-375V RK1-375W RK1-375BOF RK1-375FLUSH RK1-375-RVCOVER RK1-375XLBVHD RK1-375BVHD
1 Wedge Screw
•
(x2)
•
(x2)
2 Wedge
• •
3 O-Ring, Sleeve
• • • • • • • • • • • •
4 Sleeve
• •
5 O-Ring, #1 Check Seat
• • • • • •
6 #1 Check Seat
• • • •
7 Poppet Screw
•
(x2)
•
(x2)
•
(x2)
•
(x2)
8 Check Seal Retainer
•
(x2)
•
(x2)
•
(x2)
•
(x2)
9 Check Seal Ring
•
(x2)
•
(x2)
•
(x2)
•
(x2)
•
(x2)
•
(x2)
10 Poppet
•
(x2)
•
(x2)
•
(x2)
•
(x2)
11 #1 Check Spring
• • • •
12 #1 Check Spring Retainer
• • • •
13 O-Ring, #2 Check Seat
• • • • • •
14 #2 Check Seat
• • • •
15 #2 Check Spring
• • • •
16 #2 Check Spring Retainer
• • • •
17 O-Ring, Housing Inlet
• • • • • • • • • •
18 Test Cock
•
(x3)
•
(x3)
19 Check Housing
• •
20 O-Ring, Housing Outlet
• • • • • • • • • • • • • • • •
21 O-Ring, Relief Valve Cover
• • • • • •
22 O-Ring, Relief Valve Seat
• • • • • •
23 Relief Valve Seat
• • • •
24 Relief Valve Spring
• • • •
25 Relief Valve Seal Retaining Screw
• • • •
26 Relief Valve Seal Ring
• • • • • •
27 Relief Valve Lower Plunger
• • • •
28 Diaphragm
• • • • • •
29 Relief Valve Upper Plunger
• • • •
30 O-Ring, Relief Valve Stem
• • • • • •
31 Relief Valve Cover
• • • •
32
Relief Valve Cover Screw, Short
•
(x2)
•
(x2)
Relief Valve Cover Screw, Long
•
(x4)
•
(x4)
33
Inlet Ball Valve, 375XL
• • •
Inlet Ball Valve, 375
• • •
34
Outlet Ball Valve, 375XL
• • •
Outlet Ball Valve, 375
• • •
35
Housing, Blow-Out/Flush
• • • •
Flush Hose Assembly
• •
36
Green Ball Valve Handle and Nut
•
(x2)
•
(x2)
Blue Ball Valve Handle and Nut
•
(x2)
•
(x2)
Test Cock Cap Plug
•
(x3)
•
(x3)
Whole Goods (Available for individual sale)
Item # Item Description 3/4" 1"
18
Test Cock 18-860
Test Cock, Lead Free 18-860XL
Item No. Repair Kit Description
1/2"
RK12-375XLBV1 Inlet Ball Valve Repair Kit, 1/2" 375XL
RK12-375BV1 Inlet Ball Valve Repair Kit, 1/2" 375
RK12-375XLBV2 Outlet Ball Valve Repair Kit, 1/2" 375XL
RK12-375BV2 Outlet Ball Valve Repair Kit, 1/2" 375
3/4"
RK34-375XLBV1 Inlet Ball Valve Repair Kit, 3/4" 375XL
RK34-375BV1 Inlet Ball Valve Repair Kit, 3/4" 375
RK34-375XLBV2 Outlet Ball Valve Repair Kit, 3/4" 375XL
RK34-375BV2 Outlet Ball Valve Repair Kit, 3/4" 375
Item No. Repair Kit Description
1/2" and 3/4"
RK34-375
Complete Internals Repair Kit, 1/2" and 3/4"
375 and 375XL
RK34-375R Rubber Repair Kit, 1/2" and 3/4" 375 and 375XL
RK34-375V
Complete Pressure Vessel Repair Kit, 1/2" and
3/4" 375 and 375XL
RK34-375W
Wedge Assembly Repair Kit, 1/2" and 3/4" 375
and 375XL
RK34-375BOF
Blow-Out/Flush Fitting Repair Kit, 1/2" and 3/4"
375 and 375XL
RK34-375FLUSH Flush Kit, 1/2" and 3/4" 375 and 375XL
RK34-375-RVCOVER
Relief Valve Cover Repair Kit, 1/2" and 3/4" 375
and 375XL
RK34-375XLBVHD
Green Ball Valve Handle Repair Kit, 1/2" and
3/4" 375XL
RK34-375BVHD
Blue Ball Valve Handle Repair Kit, 1/2" and
3/4" 375
Item No. Repair Kit Description
1"
RK1-375XLBV1 Inlet Ball Valve Repair Kit, 1" 375XL
RK1-375BV1 Inlet Ball Valve Repair Kit, 1" 375
RK1-375XLBV2 Outlet Ball Valve Repair Kit, 1" 375XL
RK1-375BV2 Outlet Ball Valve Repair Kit, 1" 375
RK1-375 Complete Internals Repair Kit, 1" 375 and 375XL
RK1-375R Rubber Repair Kit, 1" 375 and 375XL
RK1-375V
Complete Pressure Vessel Repair Kit, 1" 375
and 375XL
RK1-375W Wedge Assembly Repair Kit, 1" 375 and 375XL
RK1-375BOF Blow-Out/Flush Fitting Repair Kit, 1" 375 and 375XL
RK1-375FLUSH Flush Kit, 1" 375 and 375XL
RK1-375-RVCOVER Relief Valve Cover Repair Kit, 1" 375 and 375XL
RK1-375XLBVHD Green Ball Valve Handle Repair Kit, 1" 375XL
RK1-375BVHD Blue Ball Valve Handle Repair Kit, 1" 375