757ISR-LG-DCDA

Series 757ISR DCDA Double Check Detector Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. Series 757ISR DCDA may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. This double check detector assembly shall consist of two independently operating tri-link check modules within a single housing, sleeve access port, and three test cocks. Tri-link checks shall be removable and serviceable, without the use of special tools. Available in sizes 100mm-150mm (4-6 IN).