Wanner Engineering announced its Hydra-Cell Metering Solutions SM Series electronic solenoid metering pumps, which, it reported, provide pH control for mining applications. The pumps feature a simple hand-operated dial with stroke adjustment from 15 to 300 strokes per minute (min), the company reported. Maximum discharge volumes range from 28 to 100 ml/min and maximum discharge pressure ratings from 58 to 217 psi, depending on the model. The pumps feature a double-ball check valve to ensure metering accuracy and reduce the possibility of water hammer. An anti-siphon check valve prevents clogging at the injection point and aids in priming the pump. An optional integral relief valve releases abnormal pressure automatically if the pressure exceeds the pump’s capability, protecting it from damage. A foot valve is designed to prevent backflow into chemical injection systems. The pumps are dust-proof, heat resistant, wash down capable, and are for indoor or outdoor use, the company reported.
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