Specification

ManualsBrandsZurn ManualsPlumbingRepair Kit

MODEL 350XL and 350

Double Check – Backow Preventers 3/4" and 1"

Item Number Description 3/4" Part Number 1" Part Number

1 BODY, 350XL 352-1XL-010F 353-1XL-010F

1 BODY, 350 352-1-010F 353-1-010F

2 HOUSING 352-1A 353-1A

3 #1 SEAT 352-18A 353-18A

4 #2 SEAT 352-18B 353-18B

5 O-RING #1 125N-PM 131N-PM

6 O-RING #2 126N-PM 132N-PM

7 POPPET 352-30 353-30

8 SPRING 352-33 353-33

9 SLEEVE 352-2 353-2

10 O-RING, HOUSING INLET 214N 220N-80

11 O-RING, HOUSING OUTLET 223N 226N-80

12 SCREWS 352-11 352-11

13 TEST COCKS 18-860XL 18-860XL

14 BALL VALVE INLET, 350XL 34-850TXL 1-850TXL

14 BALL VALVE INLET, 350 34-850T 1-850T

15 BALL VALVE OUTLET, 350XL 34-850XL 1-850XL

15 BALL VALVE OUTLET, 350 34-850 1-850

16 CHECK ASSEMBLY #1 352-300A 353-300A

17 CHECK ASSEMBLY #2 352-300B 353-300B

18 HOUSING ASSEMBLY RK34-350V RK1-350V

19 TEST COCK CAP PLUG 2-7P 2-7P

20 GREEN BALL VLV. HANDLE and NUT 852-6XL 853-6XL

20 BLUE BALL VLV. HANDLE and NUT 852-6 853-6

RK34-350R Size 3/4" RK1-350R Size 1"

Part Number Qty. Description Part Number Qty. Description

125N-PM 1 O-RING #1 CHECK ASSY 131N-PM 1 O-RING #1 CHECK ASSY

126N-PM 1 O-RING #2 CHECK ASSY 132N-PM 1 O-RING #2 CHECK ASSY

214N 1 O-RING, HOUSING INLET 220N-80 1 O-RING, HOUSING INLET

223N 1 O-RING, HOUSING OUTLET 226N-80 1 O-RING, HOUSING OUTLET

352-30 2 POPPET 353-30 2 POPPET

Repair Kit, Rubber

RK34-350 Size 3/4" RK1-350 Size 1"

Part Number Qty. Description Part Number Qty. Description

352-300A 1 #1 CHECK ASSEMBLY 353-300A 1 #1 CHECK ASSEMBLY

352-300B 1 #2 CHECK ASSEMBLY 353-300B 1 #2 CHECK ASSEMBLY

214N 1 O-RING, HOUSING INLET 220N-80 1 O-RING, HOUSING INLET

223N 1 O-RING, HOUSING OUTLET 226N-80 1 O-RING, HOUSING OUTLET

Repair Kit, Complete

RK34-350V Size 3/4" RK1-350V Size 1"

Part Number Qty. Description Part Number Qty. Description

ITEM 18 1 HOUSING ASSEMBLY ITEM 18 1 HOUSING ASSEMBLY

Repair Kit, Vessel

RK34-350BOF Size 3/4" RK1-350BOF Size 1"

Part Number Qty. Description Part Number Qty. Description

352-1BOF 1 HOUSING, BLOW OUT/FLUSH, 3/4" 353-1BOF 1 HOUSING, BLOW OUT/FLUSH,1"

218N 1 O-RING, HOUSING INLET 223N-80 1 O-RING, HOUSING INLET

223N-80 1 O-RING, HOUSING OUTLET 226N-80 1 O-RING, HOUSING OUTLET

Repair Kit, Complete

Rev. C

Summary of content (2 pages)

PAGE 1
MODEL 350XL and 350 Double Check – Backflow Preventers 3/4" and 1" Item Number Description 3/4" Part Number 1" Part Number 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 15 16 17 18 19 20 20 BODY, 350XL BODY, 350 HOUSING #1 SEAT #2 SEAT O-RING #1 O-RING #2 POPPET SPRING SLEEVE O-RING, HOUSING INLET O-RING, HOUSING OUTLET SCREWS TEST COCKS BALL VALVE INLET, 350XL BALL VALVE INLET, 350 BALL VALVE OUTLET, 350XL BALL VALVE OUTLET, 350 CHECK ASSEMBLY #1 CHECK ASSEMBLY #2 HOUSING ASSEMBLY TEST COCK CAP PLUG GREEN
PAGE 2
MODEL 350XL and 350 Parts Drawing 19 12 13 11 10 14 5 18 3 2 6 20 1 4 16 20 7 8 9 15 17 INLET O-RING OUTLET O-RING BLOW-OUT FLUSH HOUSING RK34-350BOF RK1-350BOF Repair Kit, Ball Valve Handles REPAIR KIT, RK34-BVHDXL 3/4" RK1-BVHDXL 1" Description Part Number Qty. Part Number 853-6XL GREEN BALL VLV. HANDLE & NUT 852-6XL 2 For more information please visit www.zurn.com REPAIR KIT, RK34-BVHD 1/2"-3/4" RK1-BVHD 1" Qty. Description Part Number Qty. Part Number Qty.