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The Wilkins 1-975XL2FT is a reduced pressure principle backflow prevention assembly designed to protect potable water systems from contamination. Engineered for health hazard applications, this Zurn 1-975XL2FT assembly features low lead bronze construction and full port ball valves for reliable performance.

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
• Connection Type: Integral Male 45° Flare SAE

Other Related Variants:

• 112-975XL2FT: 1 1/2 Inches model size
• 2-975XL2FT: 2 Inches model size
• 34-975XL2FT: 3/4 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/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, the installation shall be supplied with an air gap adapter.

Standards Compliance:

ASSE 1013; cUPC Listed; CSA Certified B64.4; AWWA Compliant C511; 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 both backsiphonage and backpressure where potential health hazards exist.
• 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.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or entire device from the line.
• Durable Construction: Low lead cast bronze body with 300 series stainless steel fasteners and springs ensures long-lasting performance and corrosion resistance.

FAQ

Q: What is the maximum working pressure for the Wilkins 1-975XL2FT?

A: The maximum working water pressure is 175 PSI with a hydrostatic test pressure of 350 PSI.

Q: What are the installation height requirements for this backflow preventer?

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: Is an air gap fitting required for all installations?

A: An air gap fitting (Model AG) is required for indoor installations to ensure proper drainage and prevent submersion of the unit.

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