Zurn Wilkins - 975LXL Series - Backflow Preventer

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.

Typical Application

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

Standard Compliance

• Australian Watermark (AS/NZS 2845.1) Approved Lic. 1379
• Type Tested AS/NZS 4020 Lic. 20111

Operating Parameters

• Max. Working Water Pressure: 1200kPa
• Max. Working Temperature: 82 Celsius
• Hydrostatic Test Pressure: 2400kPa

Materials

• Main Valve Body: Cast Bronze ASTM B 584
• Access Covers: Cast Bronze ASTM B 584
• Elastomers: Silicone & Buna Nitrile (FDA approved)
• Springs: Stainless Steel 300 Series

Flow Characteristics

• Designed for installation on potable water lines.
• Protects against both back siphonage and backpressure of contaminated water into the water supply.
• Assembly provides protection where a potential health hazard exists.
• The Reduced Pressure Principle Backflow Assembly is Australian Watermark Approved (AZ/NZS 2845.1)
• The Reduced Pressure Principle Backflow Preventer is rated to 82°C.
• The checks shall be oriented at a 45° angle upward and accessible for maintenance without removing the relief valve or the entire device from the line.
• If installed indoors, the installation should be supplied with an air gap and “Y” type strainer.
• Unless otherwise specified, the assembly should be mounted at a minimum of 305mm and maximum of 762mm above adequate drains with sufficient side clearance for testing and maintenance.

Dimensions and Weights

Typical Installation