The Wilkins RK8-350CK1 is a comprehensive repair kit designed for servicing the #1 check assembly in 8"–12" backflow preventers, ensuring reliable performance and compliance in commercial applications.

Key Specifications:

• Size Range: 8", 10", 12" models
• Compatible Models: 350, 350A, 350DA series
• Assembly Type: #1 Check Assembly
• Application: Commercial backflow preventers
• Kit Components: Complete seat and poppet assembly

Other Related Variants:

• RK212-350CK1: Small sizes 2-1/2" and 3" models
• RK4-350CK1: Mid-range up to 4" with 350A/350ADA support
• RK6-350CK1: 6" valve applications only

Materials:

• Seat Retainer #1
• Bolt Poppet Retainer
• Washer Poppet Bolt
• O-Ring Poppet Bolt
• Poppet Retainer
• Seat Assembly #1 Poppet
• Washer Seat Retainer
• Lubricant

Typical Installation:

Intended for servicing large-format first check assemblies in commercial backflow prevention systems including municipal water supplies, industrial facilities, irrigation systems, fire protection applications, and other installations requiring regular maintenance of 8", 10", and 12" Models 350, 350A, and 350DA backflow preventers.

Standards Compliance:

Designed for use with backflow preventers compliant with applicable standards for reduced pressure zone assemblies and double check valve assemblies in commercial water systems.

Features & Benefits:

• Complete Assembly Kit: Includes all necessary components for #1 check assembly repair, eliminating the need to source individual parts.
• Broad Compatibility: Services multiple Wilkins RK8-350CK1 and Zurn RK8-350CK1 models including 350, 350A, and 350DA across 8", 10", and 12" sizes.
• Simplified Maintenance: Pre-packaged with lubricant and all required seals, washers, and retainers for efficient service and reduced downtime.
• Commercial-Grade Components: Engineered for demanding commercial applications requiring reliable backflow prevention and long-term performance.

FAQ

Q: What models are compatible with the RK8-350CK1 repair kit?

A: This kit is compatible with 8", 10", and 12" Models 350 and 350A, as well as 8" and 10" Models 350DA backflow preventers.

Q: What components are included in this repair kit?

A: The kit includes Seat Retainer #1, Bolt Poppet Retainer, Washer Poppet Bolt, O-Ring Poppet Bolt, Poppet Retainer, Seat Assembly #1 Poppet, Washer Seat Retainer, and Lubricant.

Q: How does this kit differ from other 350 series repair kits?

A: The RK8-350CK1 is specifically designed for large-format 8"–12" valves, while RK212-350CK1 serves 2-1/2"–3" sizes, RK4-350CK1 handles up to 4" models, and RK6-350CK1 is exclusively for 6" valves.

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