The Wilkins 1-350XLFT is a lead-free double check valve assembly designed for potable water backflow protection on non-health hazard applications.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1015, cUPC, CSA B64.5
• End Connections: Threaded FNPT ANSI B1.20.1

Other Related Variants:

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

Materials:

• Low-lead cast bronze main valve body (ASTM B 584)
• Reinforced nylon housing
• Stainless steel fasteners (300 Series)
• Silicone elastomers (FDA Approved)
• Buna Nitrile elastomers (FDA Approved)
• Delrin internals
• Stainless steel springs (300 Series)
• Low-lead cast bronze ball valves (ASTM B 584)
• Stainless steel struts (300 Series)
• Stainless steel handles (200 Series)

Typical Installation:

The Zurn 1-350XLFT is designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the water supply. Assembly shall provide protection where a potential health hazard does not exist. 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 Compliance: Meets NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content for safe potable water applications.
• Integral Test Fitting: The Zurn 1-350XLFT features a built-in male 45° flare SAE test fitting for convenient field testing and maintenance.
• Durable Construction: Low-lead cast bronze body with reinforced nylon housing, stainless steel components, and FDA-approved elastomers ensure long-lasting performance.
• Versatile Protection: Protects against both backsiphonage and backpressure in potable water systems where a health hazard does not exist.

FAQ

Q: What is the maximum working pressure for the Wilkins 1-350XLFT?

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

Q: Can the 1-350XLFT be installed in both horizontal and vertical positions?

A: Yes, the Model 350XL series is certified for both horizontal and vertical installation in accordance with ASSE 1015 and CSA B64.5 standards.

Q: What is the purpose of the integral 45° flare SAE test fitting on this model?

A: The FT suffix indicates the unit includes an integral male 45° flare SAE test fitting, which allows for easy connection of test equipment during field testing and inspection without additional adapters.

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