NOTICE: Product images may vary from the actual item due to differences in size or configuration options.

The Wilkins 34-975XL3U is a reduced pressure principle backflow prevention assembly engineered to protect potable water systems from contamination hazards.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Threaded FNPT (ANSI B1.20.1)

Other Related Variants:

• 112-975XL3U: 1 1/2 Inches model size
• 1-975XL3U: 1 Inch model size
• 2-975XL3U: 2 Inches model size

Materials:

• Main Valve Body: Low Lead Cast Bronze ASTM B584
• Access Covers: Low Lead Cast Bronze ASTM B584
• 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 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; 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 where a potential health hazard exists in potable water systems.
• Lead-Free Construction: Ideal for use where lead-free valves are required with less than 0.25% weighted average lead content, meeting NSF/ANSI/CAN 372 standards.
• 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.
• Durable Materials: Constructed with low lead cast bronze body, 300 Series stainless steel fasteners and springs, and FDA-approved silicone and Buna Nitrile elastomers for long-lasting performance.

FAQ

Q: What is the minimum working water pressure required for the Zurn 34-975XL3U?

A: The minimum working water pressure for the Wilkins 34-975XL3U is 25 PSI, with a maximum working water pressure of 175 PSI.

Q: Can the 34-975XL3U be installed indoors?

A: Yes, if installed indoors, the installation shall be supplied with an air gap adapter (Model AG-X) to ensure proper drainage and compliance with installation requirements.

Q: What pressure reducing valves are suggested to pair with this backflow preventer?

A: Suggested PRV pairings include Model 500XL3, Model 600XL3, and Model 625XL3 Pressure Reducing Valves for a complete water system protection solution.

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