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The Wilkins 112-375 is a reduced pressure principle backflow preventer designed for irrigation and non-potable water systems, providing protection against backsiphonage and backpressure.

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: Threaded FNPT

Other Related Variants:

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

Materials:

• Reinforced Nylon housing
• Stainless Steel fasteners (300 Series)
• Silicone elastomers
• Buna Nitrile elastomers
• Delrin internals
• Nylon internals
• Stainless steel springs (300 Series)
• 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

Features & Benefits:

• Health Hazard Protection: Protects potable water supply against both backsiphonage and backpressure of contaminated water where a potential health hazard exists.
• Durable Construction: Reinforced nylon body with stainless steel internal components ensures long-lasting performance in demanding irrigation applications.
• Versatile Installation: Suitable for both indoor and outdoor installations with proper drainage, providing flexibility for various site conditions.
• Comprehensive Certification: ASSE 1013 listed and compliant with multiple industry standards including CSA B64.4 and AWWA C511 for assured reliability and code compliance.

FAQ

Q: What type of water applications is the Zurn 112-375 designed for?

A: The Zurn 112-375 is designed exclusively for irrigation and non-potable water applications only. It should not be used for potable water systems.

Q: What installation height is required for proper operation?

A: The assembly must 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.

Q: What accessories are available for the Wilkins 112-375?

A: Available accessories include repair kits, thermal expansion tank (Model XT), soft seated check valve (Model 40XL2), shock arrester (Model 1260XL), QT-SET Quick Test Fitting Set, and blow out/flush fittings.

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