Zurn Wilkins 1-975XL 1" 975XL Reduced Pressure Principle Assembly

The 975XL Reduced Pressure Principle Backflow Assembly is used on non-potable water applications for high health hazard protection from both backsiphonage and backpressure of contaminated water into the potable water supply. The wye pattern design with short lay length eases installation in compact spaces, and the cast bronze body includes separate access to the relief valve and each check valve for reduced labor costs and repair time. The 975XL is favored by installers around the world, and is the simplest, best performing, and most reliable backflow preventer in the irrigation market today.

•  Wye pattern design reduces installation time and costs
•  Easy access to the first check for debris removal reduces maintenance costs
•  Entire unit serviceable in line
•  A tried and true design favored by installers worldwide
•  ASSE® Listed
•  IAPMO® Listed
•  UL® Classified (less shut-off valves or with OS&Y valves) and C-UL® Classified
•  CSA® Certified
•  AWWA Compliant
•  Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Standards Compliance

• ASSE® Listed 1013
• IAPMO® Listed
• UL® Classified (less shut-off valves or with OS&Y valves)
• C-UL® Classified
• CSA® Certified
• 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

Materials

• Main valve body: Cast Bronze ASTM B 584
• Access covers: Cast Bronze ASTM B 584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone (FDA Approved), Buna Nitrile (FDA Approved)
• Polymers: Noryl, NSF Listed
• Springs: Stainless steel, 300 series