NOTICE: Product images may vary from the actual item due to differences in size or configuration options.

The Wilkins 114-975XL is a 1-1/4-inch reduced pressure principle backflow assembly designed to protect potable water supplies from both backsiphonage and backpressure in high hazard, non-potable applications.

Key Specifications:

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

Other Related Variants:

• 34-975XL: 3/4 Inch version
• 1-975XL: 1 Inch version
• 112-975XL: 1 1/2 Inch version
• 2-975XL: 2 Inch version

Materials:

• Cast Bronze body per ASTM B584
• Cast Bronze access covers per ASTM B584
• Stainless Steel 300 Series fasteners
• Stainless Steel 300 Series springs
• Silicone elastomers
• Buna Nitrile elastomers
• Noryl™ internal polymers
  

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; UL Classified; C-UL Classified; CSA Certified B64.4; AWWA compliant C511; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NYC MEA 425-89-M VOL 3

Features & Benefits:

• High Hazard Protection: Protects against both backsiphonage and backpressure of contaminated water into potable water supply.
• Durable Construction: Cast bronze body and access covers with stainless steel fasteners and springs ensure long-lasting performance.
• Easy Maintenance Access: First and second checks accessible for maintenance without removing relief valve or entire device from the line.
• Comprehensive Compliance: Multiple approvals including ASSE 1013, cUPC, UL, CSA, and AWWA ensure regulatory acceptance nationwide.

FAQ

Q: What is the required installation height for the Zurn 114-975XL?

A: The Zurn 114-975XL must be installed at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance.

Q: Does the Wilkins 114-975XL come with shutoff valves?

A: Yes, the Wilkins 114-975XL is supplied standard with full-port QT ball valves for convenient isolation during testing and maintenance.

Q: Can this backflow preventer be installed indoors?

A: Yes, but indoor installations require an air gap adapter to ensure proper drainage and prevent submersion of the unit.

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