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The Wilkins 2-975XLFDC is a reduced pressure principle backflow preventer designed for direct connection to fire hydrants on temporary construction water lines, protecting against both backsiphonage and backpressure contamination.

Key Specifications:

• Size: 2 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1013, IAPMO, UL
• Connection Type: 2 1/2" NH hose connections

Other Related Variants:

• None: No other variants available

Materials:

• Main valve body: Cast Bronze ASTM B 584
• Access covers: Cast Bronze ASTM B 584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone (FDA approved) and Buna Nitrile (FDA approved)
• Polymers: Noryl™, NSF Listed
• Springs: Stainless steel, 300 series
• Connections: Cast Bronze ASTM B 584

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturer's 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; IAPMO Listed; UL Classified (less shut-off valves or with OS&Y valves); C-UL Classified; CSA Certified; AWWA compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• High Hazard Protection: Protects against both backsiphonage and backpressure of contaminated water into the potable water supply for fire hydrant applications.
• Corrosion-Resistant Construction: Bronze body with stainless steel internals and FDA-approved elastomers ensures long-lasting durability in harsh environments.
• Easy Fire Hydrant Connection: Features 2 1/2" female hose swivel inlet and 2 1/2" male hose coupling outlet for direct connection to fire hydrants and fire hoses.
• Serviceable Design: First and second checks are accessible for maintenance without removing the relief valve or entire device from the line, with full port ball valves for service isolation.

FAQ

Q: What is the maximum flow rate for the Zurn 2-975XLFDC?

A: The maximum rated flow rate is 160 GPM, with a maximum intermittent flow rate of 250 GPM.

Q: What type of connections does the Wilkins 2-975XLFDC have?

A: The inlet connection is a 2 1/2" female hose swivel (NH/NST threaded per NFPA 1963), and the outlet connection is a 2 1/2" male hose coupling, designed for direct fire hydrant and fire hose connections.

Q: Where should the Zurn 2-975XLFDC 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. The installation must ensure no part of the unit can be submerged.

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