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

The Wilkins 12-975XL3 is a reduced pressure principle assembly designed to protect potable water systems from backsiphonage and backpressure contamination.

Key Specifications:

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

Other Related Variants:

• 112-975XL3: 1 1/2 Inches model size
• 114-975XL3: 1 1/4 Inches model size
• 1-975XL3: 1 Inch model size
• 2-975XL3: 2 Inches model size
• 34-975XL3: 3/4 Inches model size

Materials:

• Low Lead Cast Bronze ASTM B 584 (Main valve body and access covers)
• Stainless Steel, 300 Series (Fasteners and springs)
• Silicone, FDA Approved (Elastomers)
• Buna Nitrile, FDA Approved (Elastomers)
• Noryl™ (Polymers)

Typical Installation:

Ideal for use where Lead-Free valves are required on potable water lines requiring protection against both backsiphonage and backpressure of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists. 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 1013; cUPC; CSA B64.4; UL Classified (less shut-off valves); C-UL Classified; AWWA C511; Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 and 372 standards with less than 0.25% weighted average lead content for safe potable water applications.
• Dual Protection: Protects against both backsiphonage and backpressure contamination where potential health hazards exist.
• Easy Maintenance Access: First and second checks accessible for maintenance without removing relief valve or entire device from the line, with shared single access cover and top-accessible test cocks.
• Durable Construction: Low lead cast bronze body with Noryl™ internal components, stainless steel springs, and FDA-approved silicone and Buna-N elastomers for long-lasting performance.

FAQ

Q: What is the minimum installation height for the Zurn 12-975XL3?

A: 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.

Q: What is the minimum working water pressure required for the Wilkins 12-975XL3?

A: The minimum working water pressure is 25 PSI, with a maximum working water pressure of 175 PSI.

Q: Can the Zurn 12-975XL3 be used in outdoor installations?

A: Yes, the assembly can be installed outdoors with proper protective enclosure. For indoor installations, an air gap adapter should be supplied.

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