The Wilkins 112-375XL is a reduced pressure principle backflow preventer designed for potable water systems, protecting against backsiphonage and backpressure in high hazard applications.

Key Specifications:

• Size: 1 1/2 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1013, cUPC, CSA B64.4
• End Connections: ANSI B1.20.1 Threaded FNPT

Other Related Variants:

• 114-375XL: 1 1/4 Inches
• 12-375XL: 1/2 Inches
• 1-375XL: 1 Inches
• 2-375XL: 2 Inches
• 34-375XL: 3/4 Inches

Materials:

• Reinforced Nylon housing (FDA approved)
• Stainless Steel fasteners (300 Series)
• Silicone elastomers (FDA Approved)
• Buna Nitrile elastomers (FDA Approved)
• Delrin and Nylon internals
• Stainless Steel springs (300 series)
• Low Lead Cast Bronze ball valves (ASTM B 584)
• Stainless Steel struts (300 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 and a maximum of 30 inches 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 Listed 1013; cUPC Listed; CSA Certified B64.4; AWWA compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Lead-Free Protection: NSF/ANSI/CAN 372 certified with less than 0.25% weighted average lead content for safe potable water applications.
• Durable Construction: Reinforced nylon body with stainless steel components ensures long-lasting performance and corrosion resistance.
• Full Port Shutoff Valves: Equipped with low-lead bronze ball valves for easy maintenance and full flow capacity.
• Versatile Installation: Approved for both indoor and outdoor installation with optional air gap and strainer accessories.

FAQ

Q: What is the maximum working pressure for the Zurn 112-375XL?

A: The Zurn 112-375XL is rated for a maximum working water pressure of 175 PSI and maximum working temperature of 180°F.

Q: What type of thread connections does the Wilkins 112-375XL use?

A: The Wilkins 112-375XL features threaded FNPT (Female National Pipe Thread) end connections conforming to ANSI B1.20.1 standards.

Q: Can this backflow preventer be installed outdoors?

A: Yes, the assembly is approved for both indoor and outdoor installation. For outdoor applications, a protective enclosure is recommended, and optional air gap configurations are available.

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