The Wilkins 34-375XLS is a 3/4" reduced pressure principle backflow preventer assembly with integrated lead-free bronze Y-type strainer, designed to protect potable water supplies from contamination.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: FNPT Threads

Other Related Variants:

• 12-375XLS: 1/2 Inch model size
• 1-375XLS: 1 Inch model size
• 112-375XLS: 1 1/2 Inch model size
• 2-375XLS: 2 Inch model size

Materials:

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

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; AWWA C511; USC Foundation Approved; NSF/ANSI/CAN 61 & 372

Features & Benefits:

• Lead-Free Compliance: Meets NSF/ANSI/CAN 372 with less than 0.25% weighted average lead content for safe drinking water applications.
• Comprehensive Protection: Protects against both backsiphonage and backpressure where potential health hazards exist in potable water systems.
• Integrated Strainer: The Zurn 34-375XLS includes Model SXL lead-free bronze Y-type strainer to prevent debris from entering the system.
• Durable Construction: Features reinforced nylon housing, stainless steel components, and silicone elastomers for long-lasting performance up to 180°F.

FAQ

Q: What is the required installation height for the Zurn 34-375XLS?

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

Q: Can this backflow preventer be submerged or installed outdoors?

A: No part of the unit can be submerged. For indoor installations, an air gap adapter is required. For outdoor installations, a protective enclosure should be provided.

Q: What certifications does the Wilkins 34-375XLS carry?

A: It is ASSE Listed 1013, cUPC Listed, CSA Certified B64.4, AWWA compliant C511, USC Foundation approved, and meets NSF/ANSI/CAN 61 and 372 requirements.

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