We have Hersey backflow preventer parts: double check, reduced pressure, vacuum. The Model double check valve backflow prevention assembly consists of two independent spring loaded poppet-type check valve assemblies mounted in a .
With the features of a detector check and a double check valve assembly, Model DDC II controls cross-connections that do not present a health hazar while. The Hersey model is a double check assembly. After 19an O-ring seal was used on the check covers.
The Hersey Model GCM Reduced Pressure Backflow Prevention Assembly.
This is a double check detector assembly. It utilizes an assembly similar to the Hersey. Model DDC II Detector-Double Check Valve Assembly. HERSEY BEECO REPAIR KITS (PRIOR 2006). PRESSURE REDUCING VALVES, COMPACT MODEL.
DOUBLE UNION, THREADED FEMALE INLET AND OUTLET.
