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The Wilkins 114-975XL2S is a 1 inch reduced pressure principle backflow preventer with integrated bronze Y-type strainer, designed to protect potable water systems from both backsiphonage and backpressure contamination where a health hazard exists.

Key Specifications:

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

Other Related Variants:

• 112-975XL2S: 1 1/2 Inches version
• 1-975XL2S: 1 Inches model
• 2-975XL2S: 2 Inches version
• 34-975XL2S: 3/4 Inches model

Materials:

• Low Lead Cast Bronze ASTM B 584 (main valve body and access covers)
• Stainless Steel 300 Series (fasteners, springs, and ball valve handles)
• Silicone (elastomers)
• Buna Nitrile (elastomers)
• Noryl™ (polymers)

Typical Installation:

Installed on potable water lines requiring protection from both backsiphonage and backpressure of contaminated water. The Zurn 114-975XL2S 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. Suitable for both indoor and outdoor installations in accordance with local codes and the latest edition of the Uniform Plumbing Code.

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 & 372 certified; UL Classified (less shut-off valves or with OS&Y valves); C-UL Classified

Features & Benefits:

• Integrated Y-Strainer Protection: Bronze Y-type strainer provides debris protection, extending the life of internal components and ensuring reliable backflow prevention performance.
• Lead-Free Compliance: Certified to NSF/ANSI/CAN 61 & 372 with less than 0.25% weighted average lead content, making the Zurn 114-975XL2S ideal for potable water applications where lead-free valves are required.
• Serviceable Design: First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line, simplifying inspection and repair procedures.
• High-Performance Materials: Low-lead bronze body with Noryl™ internal components, stainless steel fasteners and springs, and silicone elastomers ensure long-lasting durability in demanding water system applications.

FAQ

Q: What is the maximum working pressure and temperature for the 114-975XL2S?

A: The assembly is rated for a maximum working water pressure of 175 PSI and a maximum working water temperature of 180°F, with a hydrostatic test pressure of 350 PSI.

Q: How should the 114-975XL2S be installed for proper drainage?

A: The assembly must be mounted between 12 inches minimum and 30 inches maximum above adequate drains with sufficient side clearance for testing and maintenance. No part of the unit can be submerged in water.

Q: Is the 114-975XL2S suitable for both indoor and outdoor installations?

A: Yes, the assembly can be installed both indoors and outdoors. Indoor installations should be supplied with an air gap adapter (Model AG), while outdoor installations may utilize a protective enclosure.

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