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Double Check Detector Assemblies, Cast Iron

Series 709DCDA Double Check Detector Assemblies prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. They incorporate a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. Their compact epoxy coated cast iron unibody and modular check design facilitate simple and easy installation and maintenance. Maximum Working Pressure: 175psi (12.06 bar).


  • Maximum flow at low pressure drop
  • Provide detection point for costly leaks or illegal taps
  • Modular design facilitates easy maintenance and assembly
  • Require no special tools for servicing

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 709DCDA

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: