Double Check Detector Assemblies are designed to prevent backflow of non-health hazard substances from being pumped or siphoned into the potable water supply. Certain models have a meter to detect ground leaks and unauthorized illegal taps.

Series 709DCDA Double Check Detector Assembly Backflow Preventers are designed to prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply.

Ames Deringer™ 30 and 30G Double Check Detector Type II Assemblies are designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions.

The FEBCO MasterSeries ® 856ST Double Check Detector Assemblies are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-health hazard non-potable service applications such as irrigation, fire line, or industrial processing.

Series C300, C300N Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of two independently operating tri-link check …

The double check detec-tor assembly consists of two independently operating, spring loaded check valves, two UL, FM, OSY resilient seated gate valves, and bypass assembly. The bypass assembly consists of a meter (cubic ft. or gallons), a double check including shutoff valves and required test cocks. Each cam-check shall be inter-

Series 757DCDA, 757NDCDA Double Check Detector Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Compact housings consist of two independently operating tri-link check valves, two shutoff valves, and four test cocks.

This 8 inch double check detector 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.

Series 800 Single and Single Check Detector Assemblies are used in the protection of potable water supplies from potential contamination from automatic fire sprinkler systems and for the detection of unauthorized water usage. Maximum Working Pressure: 250psi (17.2 bar).

• Modular check design concept facilitates maintenance and assembly access. Features • Body construction fused epoxy coated cast iron • Replaceable bronze seats • Maximum flow at low pressure drop • Compact for economy combined with performance • Design simplicity for easy maintenance • Advanced ArmorTek™ coating technology to ...