The Wilkins RK6-350CK1 is a comprehensive repair kit designed to replace the complete #1 check assembly in 6-inch backflow prevention valves, ensuring reliable water protection and system performance.

Key Specifications:

• Size: 6 Inches
• Compatibility: Models 350, 350A, 350DA, 450DA
• Application: Large-diameter backflow preventers
• Kit Type: Complete #1 Check Assembly
• Components Included: 10+ critical replacement parts

Other Related Variants:

• RK212-350CK1: 2 1/2 Inches to 3 Inches version
• RK4-350CK1: 2 1/2 Inches to 4 Inches model (supports 350A/350ADA)
• RK8-350CK1: 8 Inches to 12 Inches model size

Materials:

• Stainless Steel Seat Retainer
• Rubber O-Ring Check
• Metal Poppet Assembly
• Seal Ring
• Protective Lubricant

Typical Installation:

The Zurn RK6-350CK1 repair kit is designed for maintenance and service of large-diameter backflow prevention assemblies in commercial, industrial, and municipal water systems where protection against backsiphonage and backpressure is required.

Standards Compliance:

Designed for use with ASSE 1013 certified backflow preventers; USC FCCCHR approved assemblies

Features & Benefits:

• Complete Assembly Replacement: Includes all necessary components for full #1 check assembly replacement, eliminating the need to source individual parts.
• Extended Compatibility: Supports multiple Wilkins RK6-350CK1 valve models (350, 350A, 350DA, 450DA), providing versatile maintenance solutions for existing installations.
• Streamlined Maintenance: Pre-packaged kit with seat retainer, o-rings, poppet assembly, and lubricant simplifies repair procedures and reduces service time.
• Reliable Performance: Factory-specified components ensure proper sealing and check valve operation for continued backflow protection.

FAQ

Q: What components are included in the Zurn RK6-350CK1 repair kit?

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

Q: Which valve models are compatible with this repair kit?

A: This kit is designed for 6-inch Wilkins models 350, 350A, 350DA, and 450DA backflow prevention assemblies.

Q: How often should the #1 check assembly be replaced?

A: Replacement intervals depend on water quality, usage, and local regulations. Consult annual backflow testing results and manufacturer guidelines to determine when maintenance is required.

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