Replacement Parts List

52
MODEL 420XL and 420
Pressure Vacuum Breakers – 1"
Item Number Description 1"
1 CANOPY SCREW 7000-11B
2 CANOPY 423-3
3 BONNET 423-20
4 O-RING 039N
5 RELIEF VALVE ASSY -
6 AIR INLET DISC 423A-34
7 FLOAT -
8 SPRING RETAINER 423A-80
9 CHECK SPRING 423-33
10 POPPET 423-30
11 SEAL RING 423-12
12 SEAT 423-18
13 O-RING 133N
14 SHUT-OFF VALVE 1-850TXL
15 TEST COCK 18-860XL
16 FLOAT ASSEMBLY 423-340
17 SEAT ASSEMBLY 423-180
RK1-420
Qty. Part Number Description
1 423-180 SEAT ASSEMBLY
1 423-340 FLOAT ASSEMBLY
1 423-20 BONNET
1 039N O-RING
Repair Kit, Complete
RK1-420R
Qty. Part Number Description
1 423-12 SEAT RING
1 423A-34 AIR INLET DISC
1 133N O-RING
1 039N O-RING
Repair Kit, Rubber
RK1-420FK
Qty. Part Number Description
1 423-12 SEAL RING
1 423-20 BONNET
1 423-30 POPPET
1 423-340 FLOAT ASSEMBLY
1 039N O-RING
Repair Kit, Freeze
Rev. C