The Wilkins 112-975XL3SAG is a lead-free reduced pressure principle backflow prevention assembly designed to protect potable water systems from contamination where a health hazard exists.

Key Specifications:

• Size: 1 1/2 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Threaded (FNPT) ANSI B1.20.1

Other Related Variants:

• 114-975XL3SAG: 1 1/4 Inches version
• 1-975XL3SAG: 1 Inches version
• 2-975XL3SAG: 2 Inches version
• 34-975XL3SAG: 3/4 Inches version

Materials:

• Main valve body: Low Lead Cast Bronze ASTM B 584
• Access covers: Low Lead Cast Bronze ASTM B 584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Polymers: Noryl™
• Springs: Stainless Steel, 300 Series
• 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" (305mm) and a maximum of 30" (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. If installed indoors, the installation shall be supplied with an air gap adapter.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; UL Classified; 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 of contaminated water into potable water supply where a potential health hazard exists.
• Lead-Free Construction: Certified to NSF/ANSI/CAN 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 at an angle and accessible for maintenance without removing the relief valve or the entire device from the line, with shared single access cover.
• Comprehensive Protection System: Includes lead-free wye strainer (Model SXL) and air gap accessory (AG-4) for complete backflow prevention in indoor installations.

FAQ

Q: What is the minimum and maximum pressure range for the Zurn 112-975XL3SAG?

A: The Zurn 112-975XL3SAG operates with a minimum working water pressure of 25 PSI and a maximum working water pressure of 175 PSI.

Q: Is an air gap required for this assembly?

A: Yes, the included air gap fitting (Model AG-4) is required for indoor installations. The assembly must be mounted 12" to 30" above adequate drains, and the unit must not be submerged.

Q: Can the Wilkins 112-975XL3SAG be serviced without removing it from the line?

A: Yes, the first and second checks share a single access cover and are accessible for maintenance without removing the relief valve or removing the entire device from the line. Test cocks are accessible from the top of the device.

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