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The Wilkins 112-350XLFT is a lead-free double check valve assembly designed for potable water protection against backsiphonage and backpressure where a potential health hazard does not exist.

Key Specifications:

• Size: 1 1/4 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1015, cUPC, CSA B64.5
• End Connections: FNPT Threaded

Other Related Variants:

• 1-350XLFT: 1 Inch model size
• 2-350XLFT: 2 Inch model size
• 34-350XLFT: 3/4 Inch model size

Materials:

• Reinforced Nylon Housing
• Delrin Internals
• Stainless Steel Springs (300 Series)
• Stainless Steel Fasteners (300 Series)
• Silicone Elastomers (FDA Approved)
• Buna Nitrile Elastomers (FDA Approved)
• Low Lead Cast Bronze Ball Valves (ASTM B 584)
• Stainless Steel Struts (300 Series)
• Stainless Steel Handles (200 Series)

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. If installed below grade, be certain adequate drainage is provided to prevent the device from being submerged.

Standards Compliance:

ASSE 1015; cUPC; CSA B64.5; AWWA C510; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372; UL Classified (less shut-off valves only); C-UL Classified (less shut-off valves only); Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• Lead-Free Construction: Complies with NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content, ideal for potable water applications.
• Dual Protection: Provides comprehensive protection against both backsiphonage and backpressure of polluted water into the water supply.
• Easy Maintenance: First and second checks are accessible for maintenance without removing the device from the line, with integral male 45° flare SAE test fitting.
• Durable Materials: Reinforced nylon housing with stainless steel fasteners and FDA-approved elastomers ensure long-lasting performance up to 180°F.

FAQ

Q: What is the maximum working pressure for the Zurn 112-350XLFT?

A: The Zurn 112-350XLFT has a maximum working water pressure of 175 PSI and a hydrostatic test pressure of 350 PSI.

Q: Can this double check valve be installed vertically?

A: Yes, the Wilkins 112-350XLFT is certified for both horizontal and vertical installation according to ASSE 1015 standards.

Q: What type of test fitting does the 112-350XLFT model include?

A: This model includes an integral male 45° flare SAE test fitting (FT suffix) for convenient testing and maintenance.

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