Diaphragm Metering Pump (1076)

The 500AR Series hydraulic diaphragm metering pump is designed with an automatic air release valve to be used in sodium hypochlorite service or with other chemicals that off-gas at room temperature. It features a PVC head design that minimizes internal space, eliminating areas where gas can accumulate. All ports slope upward to vent gas through the top of the pump and away from the diaphragm.