The Wilkins 114-375 is a reduced pressure principle backflow assembly engineered for non-potable irrigation applications, providing reliable protection against backsiphonage and backpressure contamination.

Key Specifications:

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

Other Related Variants:

• 112-375: 1 1/2 Inches model size
• 12-375: 1/2 Inches version
• 1-375: 1 Inches version
• 2-375: 2 Inches model size
• 34-375: 3/4 Inches version

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 (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 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:

• Backflow Protection: Protects potable water supply against both backsiphonage and backpressure of contaminated water in irrigation systems where a potential health hazard exists.
• Durable Construction: Reinforced nylon body with stainless steel fasteners and silicone elastomers ensures long-lasting performance and corrosion resistance rated to 350 PSI hydrostatic test pressure.
• Versatile Configuration: Available with optional full port QT ball valves, street elbows, strainer, air gap adapter, and test fittings for customized installation requirements.
• High Temperature Rating: Rated for continuous operation up to 180°F maximum working water temperature for demanding irrigation applications.

FAQ

Q: What is the proper mounting height for the Zurn 114-375 backflow preventer?

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: Can the Wilkins 114-375 be used for potable water applications?

A: No, this model is designed for non-potable water applications only, specifically for irrigation water lines.

Q: What certifications does the Zurn Wilkins 114-375 carry?

A: The unit is ASSE Listed 1013, cUPC Listed, CSA Certified B64.4, AWWA compliant C511, and approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California.

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