The Wilkins 1-975XL3S is a 1 Inch reduced pressure principle backflow prevention assembly with integrated lead-free wye type strainer, designed to protect potable water supplies from contamination hazards.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 25/175 PSI
• Maximum Working Water Temperature: 180°F (82°C)
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Female NPT Threaded

Other Related Variants:

• 112-975XL3S: 1 1/2 Inches version
• 114-975XL3S: 1 1/4 Inches version
• 12-975XL3S: 1/2 Inches version
• 2-975XL3S: 2 Inches version
• 34-975XL3S: 3/4 Inches version

Materials:

• Main Valve Body and Access Covers: Low Lead Cast Bronze ASTM B584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone (FDA Approved) and 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; NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Health Hazard Protection: Provides comprehensive 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, ensuring safe drinking water compliance for health-conscious applications.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line, reducing downtime and service costs.
• Complete System Ready: Supplied with full port QT ball valves, integral test fittings, and optional Model SXL lead-free wye type strainer for comprehensive installation convenience.

FAQ

Q: What is the proper installation height for the Wilkins 1-975XL3S backflow preventer?

A: The Zurn 1-975XL3S assembly must 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 unit must never be submerged.

Q: Can the Wilkins 1-975XL3S be used with hot water systems?

A: Yes, the 1-975XL3S is rated for a maximum working water temperature of 180°F (82°C), with a minimum temperature of 33°F, making it suitable for a wide range of hot and cold water applications.

Q: What pressure reducing valves pair well with the Zurn 1-975XL3S for a complete system?

A: The recommended PRV pairings include Model 500XL3, Model 600XL3, and Model 625XL3 Pressure Reducing Valves for optimal system performance and compatibility.

"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us