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

The Wilkins 1-975XL2SAG is a reduced pressure principle backflow prevention assembly designed to protect potable water systems from contamination.

Key Specifications:

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

Other Related Variants:

• 34-975XL2SAG: 3/4 Inches model size
• 112-975XL2SAG: 1 1/4 Inches model size
• 12-975XL2SAG: 1 1/2 Inches model size
• 2-975XL2SAG: 2 Inches model size

Materials:

• Main valve body: Low Lead Cast Bronze ASTM B 584
• Access covers: Low Lead Cast Bronze ASTM B 584
• Fasteners: 300 Series Stainless Steel
• Elastomers: Silicone and Buna Nitrile
• 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 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. For indoor installations, an air gap fitting is required.

Standards Compliance:

ASSE Listed 1013; cUPC Listed; CSA Certified B64.4; AWWA Compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF/ANSI/CAN 61 & 372; UL Classified; C-UL Classified

Features & Benefits:

• Health Hazard Protection: Provides protection against backsiphonage and backpressure where a potential health hazard exists in potable water systems.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 and 372 standards with less than 0.25% weighted average lead content for safe drinking water applications.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line.
• Integrated Protection: Includes bronze Y-type strainer and air gap accessory for comprehensive system protection and indoor installation compliance.

FAQ

Q: What is the purpose of the included air gap accessory?

A: The air gap fitting is required for indoor installations to prevent submersion of the unit and ensure proper drainage of the relief valve discharge.

Q: What is the installation height requirement for the Zurn 1-975XL2SAG?

A: The 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.

Q: Can this backflow preventer be used with full port ball valves?

A: Yes, the Zurn 1-975XL2SAG comes standard with full port QT ball valves for optimal flow performance and ease of testing.

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