8" DERINGER 50 (RPDA)
The 8" Deringer 50 Reduced Pressure Detector Assembly prevents non-health hazard pollutants and hazardous contaminants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur. Used primarily on fire sprinkler systems when monitoring of unauthorized water use is required.
The smallest, lightest, most economical, best performing, and only all stainless steel backflow preventer. Period.
Important Note: Install with FLEX Couplings or Flange Adapters Only. DO NOT use RIDGED Couplings!
This valve is made to order. Lead time is 3-4 business days + shipping time.
Pro Price: $5,443.00
NEVER install an RP or RPDA in a location where any amount of discharge from the Relief Valve will cause property damage. For an indoor, pit, vault, mechanical room or enclosure installation of an RP or RPDA, an auxiliary drain (separate and independent of the Air Gap Assembly) is REQUIRED and MUST be properly sized for the Maximum Relief Valve Discharge Rate (see specifications below) corresponding to the system/supply pressure. Backflow Direct shall not be responsible for any damage caused by lack of auxiliary drain, location of auxiliary drain or undersized auxiliary drain. If the buyer is unwilling to meet this requirement please DO NOT purchase this product.