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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 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. A demonstration video can be downloaded from the website.

Neptune Chemical Pump Co., Lansdale, PA; 215-699-8700

www.neptune1.com


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