The Wilkins 114-975XL3S is a lead-free reduced pressure principle backflow prevention assembly designed to protect potable water lines against contamination.

Key Specifications:

• Size: 1 1/4 Inches
• Maximum Working Pressure: 25/175 PSI
• Maximum Temperature: 180°F (82°C)
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Threaded FNPT

Other Related Variants:

• 112-975XL3S: 1 1/2 Inches version
• 12-975XL3S: 1 Inches version
• 1-975XL3S: 1 Inches model
• 2-975XL3S: 2 Inches model
• 34-975XL3S: 3/4 Inches model

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B 584
• Access Covers: Low Lead Cast Bronze ASTM B 584
• Fasteners: 300 Series Stainless Steel
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Polymers: Noryl™
• Springs: 300 Series Stainless Steel
• Ball Valve Handles: Stainless Steel

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12 inches (305mm) and a maximum of 30 inches (762mm) above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; UL Classified (less shut-off valves); C-UL Classified; AWWA Compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; Meets NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Health Hazard Protection: Provides protection against both backsiphonage and backpressure where potential health hazards exist in potable water systems.
• Lead-Free Compliance: Certified to NSF/ANSI/CAN 61 and 372 with less than 0.25% weighted average lead content, ideal for use where lead-free valves are required.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line, with shared single access cover.
• Complete System Ready: Supplied with full port QT ball valves and integral test fittings, and includes optional lead-free wye type strainer (Model SXL) for comprehensive protection.

FAQ

Q: What pressure range is the Zurn 114-975XL3S rated for?

A: The Zurn 114-975XL3S operates within a minimum working water pressure of 25 PSI and maximum working water pressure of 175 PSI, with a hydrostatic test pressure of 350 PSI.

Q: Can this backflow preventer be installed in any orientation?

A: The assembly must be mounted at a minimum of 12 inches and maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance. The installation must ensure no part of the unit can be submerged.

Q: What accessories are compatible with the Wilkins 114-975XL3S?

A: Compatible accessories include air gap adapters (Model AG-4 for 1 1/4" - 1 1/2"), repair kits (RK114-975XL3), thermal expansion tanks (Model XT), soft seated check valves (Model 40XL2), shock arresters (Model 1260XL), and it pairs with pressure reducing valves (Models 500XL3, 600XL3, 625XL3).

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