M,  Metering Pump

Metering Pump

The positive displacement pumps that provide precision control of very low flow rates. Flow rates are generally less than 0.5 gal/min (1.8 L/m) and used to control additives to the main flow stream. Metering pumps are available in either a diaphragm or packed plunger style and are designed for clean service; dirty liquid can easily clog the valve and nozzle connections.

Also known as Controlled Volume Pump; Proportioning Pump.

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