450DA

Double Check Detector Assembly- Backflow Preventer - 4" to 10"

Parts Indentification

1. Cover Plate

2. O-Ring, Cover Plate

3. Bolt, Cover Plate

4. Seat Retainer #1

5. Seat Retainer  #2

6. O-Ring, Seat

7. Bolt, Poppet Retainer

8. Handle, #1 Poppet Assembly

9. Washer, Poppet Retainer

10. O-Ring, Poppet Retainer

11. Poppet Retainer

12. Seal Ring

13. Seat Assembly #1 Poppet

14. Seat Assembly #2 Poppet

15. Washer, Seat, Bypass Rubber Repair Kit

16. Gate Valve: OS&Y (GxG), OS&Y (GxF), Post Indicator (GxG), Post Indicator (GxF), Butterfly Valve (GxG), Butterfly Valve (GxF)

17. Ball Valve, FxF

18. Cover Retainer Assembly

19. Grooved Coupling

20. Cover

21. Bulkhead Fitting

22. Sensing Line Bulkhead Fitting

23. Water Meter

24. Bypass Valve

25. Bypass Assembly, Bypass Rubber Repair Kit

Repair Kits

Type

Product Number

Description

4"

RK4-350DA

Main and Bypass Rubber Repair Kit 2-1/2" - 4" 450DA

RK4-350CK1

#1 Check Assembly Repair Kit, 2-1/2" - 4" 450DA

RK4-LBF-VALVE-COVER

Valve Cover Repair Kit, 2-1/2" - 4" 450DA

RK4-350

Standard Repair Kit, 2-1/2" - 4" 450DA

BRK4-LBF-SEAT1RTNR

Bulk #1 Seat Retainer Repair Kit, 2-1/2" - 4" 450DA

RK4-350-SEAT2-ASSY

#2 Seat Assembly Repair Kit, 2-1/2" - 4" 450DA

RK4-350CK2

#2 Check Assembly Repair Kit, 2-1/2" - 4" 450DA

BRK4-LBF-SEAT2RTNR

Bulk #2 Seat Retainer Repair Kit, 2-1/2" - 4" 450DA

4" and 6"

RK212-450-COVERPLATE

Cover Plate Repair Kit, 4" -6" 450DA

6"

BRK6-LBF-SEAT2RTNR

Bulk #2 Seat Retainer Repair Kit, 6" 450DA

RK6-350CK2

#2 Check Assembly Repair Kit, 6" 450DA

RK6-350DA

Main and Bypass Rubber Repair Kit 6" 450DA

RK6-350

Standard Repair Kit, 6" 450DA

RK6-LBF-VALVE-COVER

Valve Cover Repair Kit, 6" 450DA

BRK6-LBF-SEAT1RTNR

Bulk #1 Seat Retainer Repair Kit, 6" 450DA

RK6-350-SEAT2-ASSY

#2 Seat Assembly Repair Kit, 6" 450DA

RK6-350CK1

#1 Check Assembly Repair Kit, 6" 450DA

8" and 10"

RK8-350DA

Main and Bypass Rubber Repair Kit 8" and 10" 450DA

RK8-450DACK2

#2 Check Assembly Repair Kit, 8" and 10" 450DA

RK8-350-SEAT1-ASSY

#1 Seat Assembly Repair Kit, 8" and 10" 450DA

RK8-350CK1

#1 Check Assembly Repair Kit, 8" and 10" 450DA

RK8-350

Standard Repair Kit, 8" and 10" 450DA

RK8-350-COVERPLATE

Cover Plate Repair Kit, 8" and 10" 450DA