The R-Series Back Pressure & Relief Valves relieve upstream pres sure in a variety of processes. R-Series has a stainless steel disc. This valve automatically maintain desired maximum pressure in a vessel or system by relieving excess pressure into lower pres sure re turn line or to atmosphere. Ideally suited for use as pump bypass control valve by maintaining constant pump discharge pressures. Used as a continuously operating valve or for protection against intermittent over pressure...

The R-Series Back Pressure & Relief Valves relieve upstream pres sure in a variety of processes. R-Series has a stainless steel disc. This valve automatically maintain desired maximum pressure in a vessel or system by relieving excess pressure into lower pres sure re turn line or to atmosphere. Ideally suited for use as pump bypass control valve by maintaining constant pump discharge pressures. Used as a continuously operating valve or for protection against intermittent over pressure...