475ST Parts/Repair Kits

Parts Indentification

1. O-Ring, Relief Valve

2. Relief Valve Elbow

3. O-Ring, Relief Valve Elbow

4. Relief Valve Assembly

5. Bolt, Relief Valve

6. Seat Retainer

7. O-Ring, Seat

8. Bolt, Poppet Retainer

9. Handle, Poppet Assembly

10. Washer

11. O-Ring, Retainer

12. Poppet Retainer

13. Seal Ring

14. Seat Assembly, #1 Poppet

15. Seat Assembly, #2 Poppet

16. Sensing Tube Fitting

17. Sensing Tube

18. Washer, Seat Retainer

19. Nut, Seat Retainer

20. Elbow

21. Nipple

22. Grooved Coupling, Body, Spool

23. Gate Valve: NRS (GXG), NRS (GXF), OS&Y (GXG), OS&Y (GXF), Butterfly Valve (GXG), Butterfly Valve (GXF)

24. Grooved Coupling, Cover

25. Ball Valve, Cover

26. Ball Valve, FxF

27. Cover

475ST Parts/Repair Kits

475ST

Reduced Pressure Principle - Backflow Preventer - 4" to 10"

Where to Buy

Diagram #	Product Number	Description	Shop Parts
	RK10-475ST-RVELBOW	400STR to StandardConversion Kit, 10"	Where to Buy

Product Number	Description	Shop Parts
RK4-375AST-SEAT1-ASY	#1 Seat Assembly Kit, 4"	Where to Buy
RK4-475STR-RVELBOW	Standard to 400STR Conversion Kit, 4"	Where to Buy
RK4-450STCK4	#2 Check Assembly Kit, 4"	Where to Buy
RK4-475ST-RVELBOW	400STR to Standard Conversion Kit, 4"	Where to Buy
RK4-350	Rubber Kit, 4"	Where to Buy
BRK4-SSLBF-SEAT1RTNR	Bulk Seat Retainer Kit, 4"	Where to Buy Buy Online
RK4-375ASTCK1	#1 Check Assembly Kit, 4"	Where to Buy Buy Online

Diagram #	Product Number	Description	Shop Parts
	RK4-RV475ST-HOSE	Relief Valve Hose Kit, 4" and 8"	Where to Buy

Product Number	Description	Shop Parts
RK6-475ST-RVELBOW	400STR to Standard Conversion Kit, 6"	Where to Buy
RK6-475STR-RVELBOW	Standard to 400STR Conversion Kit, 6"	Where to Buy
RK6-375ASTCK1	#1 Check Assembly Kit, 6"	Where to Buy Buy Online
RK6-450STCK4	#2 Check Assembly Kit, 6"	Where to Buy
BRK6-SSLBF-SEAT1RTNR	Bulk Seat Retainer Kit, 6"	Where to Buy Buy Online

Diagram #	Product Number	Description	Shop Parts
	RK6-RV475ST-HOSE	Relief Valve Hose Kit, 6" and 10"	Where to Buy

Diagram #	Product Number	Description	Shop Parts
	RK8-475ST-RVELBOW	400STR to Standard Conversion Kit, 8"	Where to Buy
	RK8-475STR-RVELBOW	Standard to 400STR Conversion Kit, 8"	Where to Buy

Product Number	Description	Shop Parts
RK8-350	Rubber Kit, 8" and 10"	Where to Buy
RK8-450STCK1	#2 Check Assembly Kit, 8" and 10"	Where to Buy
RK8-RV-ASSY	Relief Assembly Kit, 8" and 10"	Where to Buy
RK8-475STCK1	#1 Check Assembly Kit, 8" and 10"	Where to Buy

The manufacturers and products listed are or may be the trademarks of their respective companies. The other manufacturers and products listed are not associated with Zurn Elkay or Zurn Elkay’s products. Zurn Elkay provides this information for general cross reference purposes only. Zurn Elkay makes no representations regarding the quality, comparability, or compatibility of any competitor products listed. All information is subject to change without notice.