The Wilkins RK8-375 is a complete relief valve repair kit designed for 8" and 10" Model 375/375AST/475/475V Reduced Pressure Principle Backflow Preventers, restoring proper operation without full assembly replacement.

Key Specifications:

• Compatible Sizes: 8 Inches and 10 Inches
• Compatible Models: 375, 375AST, 475, 475V
• Kit Components: Six relief valve parts
• Notable Certifications: ASSE 1013, C-UL Classified
• Application Type: Relief valve assembly repair

Other Related Variants:

• RK212-375: 2 1/2 Inches to 6 Inches models
• RK114-375: 1 1/4 Inches to 2 Inches models
• RK1-375: Alternative repair kit variant
• RK34-375: Alternative repair kit variant

Materials:

• Rubber O-Rings (upper plunger, relief valve seat, and relief valve)
• Diaphragm material
• Seal Ring
• Stainless Steel Relief Valve Spring

Typical Installation:

The Zurn RK8-375 is used for repairing or replacing the relief valve assembly on 8" and 10" Reduced Pressure Principle Backflow Preventers in commercial, industrial, and institutional water supply systems where backflow prevention is required. This kit is ideal for maintaining compliance in applications such as fire protection systems, irrigation systems, industrial process water, and municipal water distribution where large-diameter backflow preventers protect potable water supplies.

Standards Compliance:

ASSE 1013; C-UL Classified

Features & Benefits:

• Complete Relief Valve Solution: Includes all six essential components (upper plunger O-ring, diaphragm, seal ring, relief valve spring, relief valve seat O-ring, and relief valve O-ring) needed for comprehensive relief valve repair.
• Cost-Effective Repair: Targeted kit allows restoration of relief valve function without the expense of replacing the entire backflow preventer assembly.
• Certified Performance: Complies with ASSE 1013 standards and is C-UL Classified, ensuring reliable backflow prevention and regulatory compliance.
• Large Diameter Compatibility: Specifically engineered for 8" and 10" Model 375/375AST/475/475V backflow preventers, supporting critical high-flow applications.

FAQ

Q: What components are included in the Zurn RK8-375 repair kit?

A: The kit includes one upper plunger O-ring, one diaphragm, one seal ring, one relief valve spring, one relief valve seat O-ring, and one relief valve O-ring—everything needed to repair the relief valve assembly.

Q: Which backflow preventer models is this repair kit compatible with?

A: This kit is designed for 8" and 10" Model 375, 375AST, 475, and 475V Reduced Pressure Principle Backflow Preventers manufactured by Wilkins.

Q: Can I use this kit to repair smaller backflow preventers?

A: No, the RK8-375 is specifically for 8" and 10" models. For smaller sizes, use RK212-375 (2 1/2"-6") or RK114-375 (1 1/4"-2") repair kits instead.

"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us