0438005 (Watts) | 4 Inch | SS Double Check Detector Assembly Backflow Preventer | Osy Shutoff | Gallons/Minute Meter | Short Lay Length

This 4 Inch Double Check Detector Backflow Preventer Assembly Prevents The Backflow of Fire Protection System Substances From Being Pumped or Siphoned Into The Potable Water Supply. It Has a Compact Construction And Short Lay Length, Making it Ideal For Retrofit Installations. It Features a Lightweight Stainless Steel Body, Thermoplastic And Stainless Steel Check Valves, And Low Head Loss. It Has a Gallons Per Minute Meter. It Can be Installed in a Horizontal or Vertical Flow-Up Position. It is Designed For Installation on Applications Identified by Local Authorities as Non-Health Hazard, Such as on Fire Protection Systems. The Maximum Working Pressure is 175 psi (12.06 Bar). | Watts | 0438005