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The Wilkins 2-975XL3U is a 2" reduced pressure principle assembly designed to protect potable water systems from backsiphonage and backpressure contamination where health hazards exist.

Key Specifications:

• Size: 2 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Female NPT threads

Other Related Variants:

• 34-975XL3U: 3/4 Inch model size
• 1-975XL3U: 1 Inch model size
• 112-975XL3U: 1 1/2 Inches model size

Materials:

• Main valve body: Low Lead Cast Bronze ASTM B584
• Access covers: Low Lead Cast Bronze ASTM B584
• 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; C-UL Classified; AWWA Compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; 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 potential health hazards exist.
• Lead-Free Compliance: Constructed with low lead bronze materials meeting NSF/ANSI/CAN 372 standards with less than 0.25% weighted average lead content for safe drinking water applications.
• Union Ball Valve Design: Features union ball valves for easy installation, removal, and maintenance without cutting pipes or disrupting the entire system.
• Accessible Maintenance: First and second checks are at an angle and accessible for maintenance without removing the relief valve or the entire device from the line.

FAQ

Q: What is the minimum working pressure required for the Zurn 2-975XL3U?

A: The minimum working water pressure required is 25 PSI to ensure proper operation of the reduced pressure principle assembly.

Q: Can the Wilkins 2-975XL3U be installed below ground or in a submerged location?

A: No, the installation must be made so that no part of the unit can be submerged. It should be mounted 12 to 30 inches above adequate drains.

Q: What pressure reducing valves are recommended to pair with the Zurn 2-975XL3U?

A: Suggested PRV pairings include Model 500XL3, Model 600XL3, and Model 625XL3 pressure reducing valves for a complete water system.

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