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Building and Industry


Wilkins 975LXL Series

The Zurn Wilkins 975XL2 Reduced Pressure Principle Backflow Preventer provides high hazard protection for potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing.



The Reduced Pressure Principle Backflow Preventer shall be certified to NSF/ANSI 61 shall be ASSE® Listed 1013, rated to 180°F, and supplied with full port ball valves. The main body and access covers shall be low lead bronze (ASTM B 584), the seat ring and all internal polymers shall be Noryl™ and the seat disc elastomers shall be silicone. The first and second checks shall be accessible for maintenance without removing the relief valve or the entire device from the line. If installed indoors, the installation shall be supplied with an air gap adapter and integral monitor switch. The Reduced Pressure Principle Backflow Preventer shall be a ZURN WILKINS Model 975XL2.


Ideal for use where Lead-Free* valves are required. Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists.

Standards Compliance

• ASSE® Listed 1013

• IAPMO® 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

• Meets the requirements of NSF/ANSI 61*


• UL® Classified (less shut-off valves or with OS&Y valves)

• C-UL® Classified


Sizes: 15 mm

Maximum working water pressure: 175 PSI

Maximum working water temperature: 180°F

Hydrostatic test pressure: 350 PSI

End connections Threaded ANSI B1.20.1

975XL2 Installation

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Product code

Wilkins 975LXL Series

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