The Ames Maxim™ M500Z Reduced Pressure Detector Backflow Preventer Assembly, 2 1/2 inch, is designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements.

It is ideal for health-hazard non-potable service applications such as fire sprinkler systems and industrial processing, and helps monitor unauthorized water use from fire protection systems.

Key Features

• Extremely Compact Design, approximately 70% lighter than traditional models
• 304 (Schedule 40) Stainless Steel housing and sleeve for durability
• Groove Fittings allow integral pipeline adjustment and easy installation
• Patented Link Check provides lowest pressure loss
• Unmatched Ease of Serviceability with a single access cover for maintenance
• Available with UL and FM grooved gear operated butterfly valve shutoffs with tamper switch
• Approved for Horizontal or Z Pattern Installations
• Furnished with a gallon per minute meter to detect underground leaks and unauthorized water use
• Replaceable Check Disc Rubber for extended life

Construction Details

• Entire valve body and closure sleeve constructed from 304 (Schedule 40) stainless steel
• Two independent Link Check modules with reversible elastomer discs
• Differential pressure relief valve, bottom mounted, constructed from stainless steel
• Bronze body nickel plated test cocks
• Shutoff valves are UL/FM grooved gear operated butterfly valves with tamper switch

A WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.