The Wilkins RK8-375R is a targeted elastomer seal kit designed for relief valve maintenance in 8" and 10" Reduced Pressure Principle Backflow Preventers.

Key Specifications:

• Compatible Size Range: 8 to 10 Inches
• Notable Certifications: ASSE 1013, C-UL Classified
• Kit Components: Five critical rubber seals
• Application: Relief valve assembly repair
• Compatible Models: 375/375AST/475/475V series

Other Related Variants:

• RK114-375R: 1-1/4" to 2" models, includes check valve seals
• RK34-375R: 1/2" to 3/4" models, includes check valve seals
• RK212-375R: Alternative size configuration

Materials:

• Quality elastomer compounds for diaphragm
• Durable rubber for O-rings
• Premium seal ring material

Typical Installation:

Used specifically for maintenance and repair of the relief valve assembly within 8" to 10" Reduced Pressure Principle Backflow Preventers including Models 375, 375AST, 475, and 475V. Ideal for routine maintenance programs, annual testing compliance repairs, and extending the service life of existing backflow prevention systems.

Standards Compliance:

ASSE 1013; C-UL Classified

Features & Benefits:

• Complete Relief Valve Solution: Includes all five critical elastomer seals needed for relief valve assembly repair - upper plunger O-ring, diaphragm, seal ring, relief valve seat O-ring, and relief valve O-ring.
• Extended Service Life: Quality materials engineered to extend replacement life and reduce maintenance frequency on large-sized backflow preventers.
• Certified Performance: ASSE 1013 compliance and C-UL classification ensure reliable protection and regulatory acceptance for the Zurn RK8-375R kit.
• Targeted Maintenance: Specifically designed for relief valve repair without requiring complete check valve overhaul, reducing downtime and maintenance costs.

FAQ

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

A: The kit includes one upper plunger O-ring, one diaphragm, one seal ring, one relief valve seat O-ring, and one relief valve O-ring - all components necessary for relief valve assembly maintenance.

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

A: This kit is designed for 8" and 10" Models 375, 375AST, 475, and 475V Reduced Pressure Principle Backflow Preventers. For smaller sizes, use RK34-375R (1/2"-3/4") or RK114-375R (1-1/4"-2").

Q: Does this kit include check valve seals?

A: No, the Zurn RK8-375R is a targeted elastomer seal kit containing only relief valve components. It does not include check valve seals, allowing for focused relief valve maintenance without replacing unnecessary parts.

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