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

The Wilkins 114-350XL is a lead-free double check valve assembly designed to prevent backsiphonage and backpressure in potable water systems where a potential health hazard does not exist.

Key Specifications:

• Size: 1 1/4 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1015, NSF/ANSI/CAN 61 & 372
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 34-350XL: 3/4 Inch version
• 1-350XL: 1 Inch version
• 112-350XL: 1 1/2 Inch version
• 2-350XL: 2 Inch version

Materials:

• 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:

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 (305mm) and a maximum of 30 inches (762mm) 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 Listed 1015; cUPC Listed; CSA Certified B64.5; AWWA Compliant C510; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; UL Classified (less shut-off valves only); C-UL Classified (less shut-off valves only); NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Backflow Protection: Protects against both backsiphonage and backpressure of polluted water into potable water supply.
• Lead-Free Compliance: Less than 0.25% weighted average lead content, meeting NSF/ANSI/CAN 61 and 372 standards for safe drinking water applications.
• Durable Construction: Reinforced nylon housing with stainless steel internals and FDA-approved elastomers for long-lasting performance.
• Easy Maintenance: First and second checks are accessible for maintenance without removing the Zurn 114-350XL from the line.

FAQ

Q: What is the hydrostatic test pressure rating of the Zurn 114-350XL?

A: The hydrostatic test pressure is rated at 350 PSI, ensuring reliable performance under demanding conditions.

Q: Can this assembly be installed vertically?

A: Yes, the Wilkins 114-350XL is certified for both horizontal and vertical installation, providing flexible mounting options.

Q: What accessories are available for this model?

A: Available accessories include repair kits, thermal expansion tanks (Model XT), QT-SET Quick Test Fitting Sets, and winterizing blow out/flush fittings for enhanced functionality and maintenance.

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