The Wilkins 1-950XL3 is a Reduced Pressure Principle Backflow Prevention Assembly designed to protect potable water lines from contamination.

Key Specifications:

• Size: 1 Inches
• Maximum Working Pressure: 25/175 psi
• Maximum Temperature: 180°F (82°C)
• Notable Certifications: ASSE 1013, cUPC, CSA
• End Connections: Threaded FNPT ANSI B1.20.1

Other Related Variants:

• 112-950XL3: 1 1/2 Inches size
• 114-950XL3: 1 1/4 Inches size
• 2-950XL3: 2 Inches size
• 34-950XL3: 3/4 Inches size

Materials:

• Low Lead Bronze ASTM B584 (main valve body and access covers)
• 300 Series Stainless Steel (fasteners and springs)
• Silicone (FDA Approved elastomers)
• Buna Nitrile (FDA Approved elastomers)
• Noryl™ (polymers)
• Stainless Steel (ball valve handles)

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. The installation shall be made so that no part of the unit can be submerged.

Standards Compliance:

ASSE 1013; cUPC; CSA B64.4; UL Classified; C-UL Classified; AWWA C511; NSF/ANSI/CAN 61; NSF/ANSI/CAN 372; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• Lead-Free Protection: NSF/ANSI/CAN 372 certified with less than 0.25% weighted average lead content for safe potable water applications.
• Dual Protection: Provides protection against both backsiphonage and backpressure of contaminated water where a potential health hazard exists.
• Easy Maintenance Access: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line.
• Full Port Ball Valves: Equipped with full port ball valves and integral test fittings for efficient testing and operation.

FAQ

Q: What is the minimum working pressure required for the Zurn 1-950XL3?

A: The minimum working water pressure required is 25 PSI.

Q: Can the Zurn 1-950XL3 be installed in any orientation?

A: The assembly must be installed 12 to 30 inches above an adequate drain with sufficient side clearance. The unit must not be submerged.

Q: What temperature range can this backflow preventer handle?

A: The unit is rated for temperatures from 33°F minimum to 180°F maximum.

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