Wilkins 114-975XL Reduced Pressure Backflow Preventer

Product Description

The WILKINS 114-975XL is a reduced pressure zone (RPZ) backflow preventer designed to protect potable water supplies from contamination caused by backpressure or backsiphonage. This assembly uses a hydraulically independent relief valve positioned between two independently operating check valves to maintain a zone of reduced pressure, providing a high level of protection in commercial and industrial plumbing systems. The 114-975XL is sized at 1.25 inches and is rated as a non-potable (NP) configuration. Licensed plumbers and water system technicians are the primary installers of this assembly.

The 114-975XL is suited for use in commercial, industrial, and municipal water service applications where a high-hazard backflow protection is required by code. It is commonly installed on irrigation systems, boiler feed lines, fire suppression supply lines, and process water connections. This unit is a 1.25-inch assembly, making it appropriate for medium-flow service lines where standard 1-inch assemblies are undersized. It carries UPC certification, which is recognized by plumbing inspectors across most jurisdictions.

Key Features

• Reduced pressure zone design provides high-hazard backflow protection via dual independent check valves and a differential relief valve
• 1.25-inch connection size suitable for medium-flow commercial and industrial service lines
• Non-potable (NP) rated configuration for appropriate hazard classification
• UPC certified for compliance with plumbing code requirements in most jurisdictions
• Weighs 27 pounds, reflecting robust brass or bronze construction typical of RPZ assemblies

Compatibility

Designed as an OEM-style reduced pressure backflow preventer assembly for 1.25-inch threaded plumbing connections in commercial and industrial water service applications.

Installation Notes

Installation of RPZ backflow preventers must be performed by a licensed plumber in accordance with local plumbing codes, the IPC, and applicable ASSE 1013 standards. Shut off the upstream water supply and depressurize the line before beginning installation. The assembly must be installed in the orientation specified by the manufacturer, typically horizontal, and must remain accessible for annual testing and certification by a licensed backflow tester. Do not install in a pit or vault without verifying local code allowances for below-grade RPZ installation.

Technical Specifications

• Connection Size: 1.25 inches
• Assembly Type: Reduced Pressure Zone (RPZ)
• Configuration: Non-Potable (NP)
• Weight: 27 pounds
• Certification: UPC
• UPC Code: 612052040387
• Order Increment: 1

Standard Information

• Brand: WILKINS
• Manufacturer Part Number: 114-975XL