The Wilkins 2-975XL3S is a 2 Inches reduced pressure principle backflow prevention assembly designed to protect potable water supplies from contamination where potential health hazards exist.

Key Specifications:

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

Other Related Variants:

• 1/2-975XL3S: 1/2 Inches version
• 3/4-975XL3S: 3/4 Inches version
• 1-975XL3S: 1 Inches version
• 1 1/4-975XL3S: 1 1/4 Inches version
• 1 1/2-975XL3S: 1 1/2 Inches version

Materials:

• Low Lead Cast Bronze ASTM B584 (Body and Access Covers)
• 300 Series Stainless Steel (Fasteners and Springs)
• Silicone FDA Approved (Elastomers)
• Buna Nitrile FDA Approved (Elastomers)
• Noryl™ (Polymers)
• Stainless Steel (Ball Valve Handles)

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 and a maximum of 30 inches 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 1013; cUPC; CSA B64.4; UL Classified; C-UL Classified; AWWA C511; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372; Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• Health Hazard Protection: Provides reliable protection against both backsiphonage and backpressure of contaminated water into potable water supply systems.
• Lead-Free Construction: Meets NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content, ideal for safe potable water applications.
• Easy Maintenance Access: First and second checks accessible for maintenance without removing relief valve or entire device from the line, sharing a single access cover.
• Durable Design: Features low lead cast bronze body, stainless steel fasteners and springs, and FDA approved silicone elastomers for long-lasting performance.

FAQ

Q: What is the minimum working pressure required for the Zurn 2-975XL3S?

A: The Zurn 2-975XL3S requires a minimum working water pressure of 25 PSI and can handle a maximum of 175 PSI.

Q: At what height should the Wilkins 2-975XL3S be installed?

A: The assembly should be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance.

Q: Can this backflow preventer be submerged during installation?

A: No, the installation must be made so that no part of the unit can be submerged to ensure proper operation and compliance.

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