The Wilkins 2-950XL3 is a reduced pressure principle backflow prevention assembly designed to protect potable water systems from contamination through backsiphonage and backpressure.

Key Specifications:

• Size: 2 Inches
• Maximum Working Pressure: 25/175 PSI
• Maximum Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: Threaded FNPT

Other Related Variants:

• 1/2-950XL3: 1/2 Inch version
• 3/4-950XL3: 3/4 Inch version
• 1-950XL3: 1 Inch version
• 1 1/4-950XL3: 1 1/4 Inch version
• 1 1/2-950XL3: 1 1/2 Inch version

Materials:

• Main valve body: Low Lead Bronze ASTM B584
• Access covers: Low Lead Bronze ASTM B584
• Fasteners: 300 Series Stainless Steel
• Elastomers: Silicone (FDA Approved)
• Elastomers: Buna Nitrile (FDA Approved)
• Polymers: Noryl™
• Springs: 300 Series Stainless Steel
• Ball valve handles: Stainless Steel

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" (305mm) and a maximum of 30" (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; AWWA C511; NSF/ANSI/CAN 61 & 372; Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Features & Benefits:

• Lead-Free Protection: Meets NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content, ideal for potable water applications.
• Dual Protection Design: Protects against both backsiphonage and backpressure where potential health hazards exist.
• Full Port Ball Valves: Equipped with full port QT ball valves for maximum flow capacity and easy testing.
• Easy Maintenance Access: First and second checks accessible through single cover without removing relief valve or entire device from line.

FAQ

Q: What is the minimum working water pressure required for the Zurn 2-950XL3?

A: The minimum working water pressure required is 25 PSI for proper operation of the reduced pressure principle assembly.

Q: At what height should this backflow preventer be installed?

A: The assembly must be mounted at a minimum of 12 inches and a maximum of 30 inches above an adequate drain with sufficient side clearance for testing and maintenance.

Q: Can the Wilkins 2-950XL3 be submerged during installation?

A: No, the installation must be made so that no part of the unit can be submerged. Proper drainage must be provided below the unit.

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