This Maxim 10 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards, such as on high flow fire systems and from other contaminants found at the service line entrance, for use in non-health hazard applications.

The assembly consists of two independently operating check valves, two non-rising stem (NRS) shutoff valves, and four test cocks.

Key Features

• Extremely Compact Design that is 70% lighter than traditional designs
• Housing and sleeve constructed of 304 (Schedule 40) stainless steel pipe with groove end connections
• Patented Tri-Link Checks provide lowest pressure loss and drip tight closure against reverse flow
• Checks are removable and serviceable without special tools
• Features a single housing sleeve access port design for easy maintenance and unmatched ease of serviceability
• Equipped with reversible EPDM or Silicone elastomer check discs
• Includes Lead Free* Bronze Body test cocks
• Groove fittings allow integral pipeline adjustment
• Approved for Horizontal, Vertical, or N Pattern Installations

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.