Replacement Parts List

ManualsBrandsZurn ManualsBackflow Preventers2" Wilkins 975XL Reduced Pressure Principle Assembly w/ Wye Strainer

MODEL 975XL2 and 975XL

Reduced Pressure Principle – Backow Preventers 3/4" to 2"

Item

Number

Description 3/4" 1" 1-1/4" 1-1/2" 2"

1 BALL VALVE, TAPPED 975XL2 34-850TXL 1-850TXL 114-850TXL 112-850TXL 2-850TXL

1 BALL VALVE, TAPPED 975XL 34-850T 1-850T 114-850T 112-850T 2-850T

BALL VALVE, 975XL2 34-850XL 1-850XL 114-850XL 112-850XL 2-850XL

2 BALL VALVE, 975XL 34-850 1-850 114-850 112-850 2-850

BUTTERFLY VALVE* N/A N/A 114-49BRXL 112-49BRXL 2-49BRXL

BUTTERFLY VALVE, TAPPED* N/A N/A 114-49BRXLT 112-49BRXLT 2-49BRXLT

3 O-RING, CHECK SEAT WK-125N WK-125N 136N 136N 136N

4 CHECK SEAT 952-18S 952-18S 954-18S 954-18S 954-18S

5 RETAINING BOLT 952-11 952-11 952-11 952-11 952-11

6 SEAL RING RETAINER 952-14 952-14 954-14 954-14 954-14

7 SEAL RING 952-12S 952-12S 954-12S 954-12S 954-12S

8 POPPET 952-30-010F 952-30-010F 954-30-010F 954-30-010F 954-30-010F

9 NO.1 CHECK SPRING 972-33 972-33 5754-33 5754-33 5754-33

10 O-RING, COVER 136N 136N 153N 153N 153N

11 CHECK COVER 952-3XL2-010F 952-3XL2-010F 954-3XL2-010F 954-3XL2-010F 954-3XL2-010F

12 POPPET ASSY. 952-300S 952-300S 954-300S 954-300S 954-300S

13 NO.2 CHECK SPRING 952-33 952-33 554-33 554-33 554-33

14 TEST COCK 18-860XL 18-860XL 14-860XL 14-860XL 14-860XL

15 O-RING, RELIEF VALVE SEAT WK-019N WK-019N 029N 029N 029N

16 RELIEF VALVE SEAT 972-18 972-18 974-18 974-18 974-18

17 RELIEF VALVE SPRING 972A-33 972A-33 974A-33 974A-33 974A-33

18 RELIEF VALVE RETAINING BOLT 972-11A 972-11A 604B-11 604B-11 604B-11

19 RELIEF VALVE SEAL RING RETAINER 972-14 972-14 552-14 552-14 552-14

20 RELIEF VALVE SEAL RING 972-12S 972-12S 974-12S 974-12S 974-12S

21 RELIEF VALVE LOWER PLUNGER 972-34A 972-34A 974-34A 974-34A 974-34A

22 RELIEF VALVE DIAPHRAGM 972-43 972-43 974-43 974-43 974-43

23 RELIEF VALVE UPPER PLUNGER 972-34 972-34 974-34 974-34 974-34

24 O-RING, RELIEF VALVE STEM WK-111N WK-111N 121N 121N 121N

25 RELIEF VALVE STEM ASSY. 972-50S 972-50S 974-50S 974-50S 974-50S

26 RELIEF VALVE COVER BOLT 554-11A 554-11A 554-11A 554-11A 554-11A

RV. and CHECK SEAT TOOL 972-SEATTOOL 974-SEATTOOL

27 RELIEF VALVE COVER 972-3AXL2-010F 972-3AXL2-010F 974-3AXL2-010F 974-3AXL2-010F 974-3AXL2-010F

*INTEGRAL SUPERVISORY SWITCH OPTION AVAILABLE

RK34-975XLR Size 3/4", and 1" Only RK114-975XLR Size 1-1/4", 1-1/2", 2" Only

Part Number Qty. Description Part Number Qty. Description

952-12S 2 SEAL RING 954-12S 2 SEAL RING

972-12S 1 RELIEF VALVE SEAL RING 974-12S 1 RELIEF VALVE SEAL RING

972-43 1 DIAPHRAGM 974-43 1 DIAPHRAGM

136N 2 O-RING, COVER 153N 2 O-RING, COVER

WK-111N 1 O-RING, RELIEF VALVE STEM 121N 1 O-RING, RELIEF VALVE STEM

RK34-975XL Size 3/4", and 1" Only RK114-975XL Size 1-1/4", 1-1/2", 2" Only

Part Number Qty. Description Part Number Qty. Description

952-12S 2 SEAL RING 954-12S 2 SEAL RING

972-12S 1 RELIEF VALVE SEAL RING 974-12S 1 RELIEF VALVE SEAL RING

972-43 1 DIAPHRAGM 974-43 1 DIAPHRAGM

136N 2 O-RING, COVER 153N 2 O-RING, COVER

WK-111N 1 O-RING, RELIEF VALVE STEM 121N 1 O-RING, RELIEF VALVE STEM

972-33 1 NO. 1 CHECK SPRING 5754-33 1 NO. 1 CHECK SPRING

952-33 1 NO.2 CHECK SPRING 554-33 1 NO. 2 CHECK SPRING

972A-33 1 RELIEF VALVE SPRING 974A-33 1 RELIEF VALVE SPRING

Repair Kit, Complete

Repair Kit, Rubber

Rev. C

Summary of content (2 pages)

PAGE 1
MODEL 975XL2 and 975XL Reduced Pressure Principle – Backflow Preventers 3/4" to 2" Item Number Description 1 1 BALL VALVE, TAPPED 975XL2 BALL VALVE, TAPPED 975XL BALL VALVE, 975XL2 2 BALL VALVE, 975XL BUTTERFLY VALVE* BUTTERFLY VALVE, TAPPED* 3 O-RING, CHECK SEAT 4 CHECK SEAT 5 RETAINING BOLT 6 SEAL RING RETAINER 7 SEAL RING 8 POPPET 9 NO.1 CHECK SPRING 10 O-RING, COVER 11 CHECK COVER 12 POPPET ASSY. 13 NO.
PAGE 2
MODEL 975XL2 and 975XL – 3/4" to 2" Parts Drawing Repair Kit, Internal RK34-975XLC Size 3/4", and 1" Only RK114-975XLC Size 1-1/4", 1-1/2", 2" Only Description O-RING, COVER POPPET ASSY NO. 1 CHECK SPRING NO. 2 CHECK SPRING RELIEF VALVE STEM ASSY RELIEF VALVE SPRING SEAT REPAIR KIT Part Number 153N 954-300S 5754-33 554-33 974-50S 974A-33 RK114-975XLSK Description O-RING, COVER POPPET ASSY NO. 1 CHECK SPRING NO.