The Wilkins RK18-860XLFT is a 4-pack accessory kit containing four 1/8" MNPT test cocks with 45° SAE flare fittings for backflow preventer testing applications.

Key Specifications:

• Thread Size: 1/8 Inches MNPT
• Maximum Working Pressure: 300 PSI WOG
• Maximum Working Temperature: 180°F
• Notable Certifications: NSF/ANSI 372
• Flare Connection: 45° SAE Flare

Other Related Variants:

• RK14-860XLFT: 1/4 Inch MNPT version
• RK18-860XL: 1/8 Inch MNPT with 1/4 Inch FNPT
• RK14-860XL: 1/4 Inch MNPT with 1/4 Inch FNPT

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B584
• Ball: Low Lead Chrome-Plated Brass
• Seat and Packing: Teflon
• Flare Fitting: Brass ASTM B16

Typical Installation:

The Zurn RK18-860XLFT test cocks are installed on backflow preventers to create test ports for attaching differential pressure gauges during annual testing and maintenance procedures. The 45° SAE flare fitting enables tool-free, fast attachment of test kit hoses. Installation height typically ranges from 12 inches minimum to 30 inches maximum above the floor.

Standards Compliance:

NSF/ANSI 372 (0.25% maximum weighted average lead content); ASTM B584; ASTM B16; ANSI B1.20.1

Features & Benefits:

• Tool-Free Testing Connection: The 45° SAE flare outlet allows for fast and easy attachment of test kit hoses without additional tools.
• Low Lead Compliance: Certified to NSF/ANSI 372 with 0.25% maximum weighted average lead content for safe drinking water applications.
• Durable Construction: Low lead cast bronze body and chrome-plated brass ball with Teflon seats ensure long-lasting performance and reliable operation.
• Debris Protection: Includes threaded dust covers to protect against fouling caused by insects, dirt, and debris when not in use.

FAQ

Q: What backflow preventers are compatible with the Zurn RK18-860XLFT test cocks?

A: These test cocks are designed for installation on backflow preventers with 1/8" MNPT threaded test ports, including models like the Wilkins 350XL and similar assemblies.

Q: How many test cocks are included in the RK18-860XLFT kit?

A: The kit contains four individual 1/8" MNPT x 45° SAE test cocks, providing a complete set for standard four-port backflow preventer testing.

Q: What is the difference between RK18-860XLFT and RK18-860XL?

A: The RK18-860XLFT features 45° SAE flare fittings for tool-free test hose attachment, while the RK18-860XL has standard 1/4" FNPT threaded outlets.

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