The Wilkins 18-860XL is a resilient seated ball type test cock designed for backflow preventer test ports, providing reliable differential pressure gauge connections for system testing and maintenance.

Key Specifications:

• Size: 1/8 Inches MNPT
• Maximum Working Pressure: 300 PSI WOG
• Maximum Working Temperature: Up to 180°F
• Notable Certifications: NSF/ANSI 372 certified
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 14-860XL: 1/4 Inch MNPT version
• 18-860XLFT: 1/8 Inch with 45° SAE flare
• 14-860XLFT: 1/4 Inch with 45° SAE flare

Materials:

• Low Lead Cast Bronze main valve body (ASTM B 584)
• Low Lead Brass ball with chrome plating
• Teflon seat and packing
• Brass flare fitting (ASTM B 16) on FT models

Typical Installation:

Installed on backflow preventers as test ports for attaching differential pressure gauges, typically positioned 12 inches minimum to 30 inches maximum above grade on indoor installations with devices like the Wilkins 350XL.

Standards Compliance:

Certified to NSF/ANSI 372 by IAPMO R&T; Threaded end connections per ANSI B1.20.1

Features & Benefits:

• Low-Lead Compliance: Certified to NSF/ANSI 372 with 0.25% maximum weighted average lead content for safe drinking water applications.
• Quarter-Turn Operation: Chrome-plated brass ball with screwdriver slot enables quick and easy opening and closing for testing procedures.
• Durable Construction: Low-lead cast bronze body with Teflon seat and packing ensures long-lasting performance up to 300 PSI WOG and 180°F.
• Versatile Connection Options: Available with standard threaded connections or optional 45° SAE flare fitting for fast test kit hose attachment.

FAQ

Q: What is the difference between the Wilkins 18-860XL and the 18-860XLFT models?

A: The Zurn 18-860XL features a 1/4" FNPT outlet connection, while the 18-860XLFT includes a 45° SAE flare fitting for faster test kit hose attachment and comes with a threaded dust cover to protect against fouling.

Q: Can the Zurn Wilkins 18-860XL be used with any backflow preventer?

A: Yes, the 18-860XL is designed for installation on backflow preventers with standard threaded test port connections conforming to ANSI B1.20.1 specifications.

Q: What is the maximum pressure and temperature rating for the 18-860XL test cock?

A: The 18-860XL is rated for maximum working pressure of 300 PSI WOG and maximum working temperature of 180°F.

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