Dosing Pumps

What is a dosing pump?

A pump designed to deliver a set amount of a substance at regular intervals. They are also referred to as metering pumps.

Most dosing pumps use one of three different types of pumping mechanisms — plunger pumps, piston pumps, or diaphragm pumps. Each are positive displacement pumps that contain a chamber in which fluid is captured and subsequently released through an outlet valve. The flow rate is adjusted by varying the stroke length, pump speed, or both.

Where are they used?

The pump is used throughout many sectors of industry. The most common application is to move chemicals for water treatment, in municipal water and wastewater plants. They are also used to treat cooling tower and boiler feed water in industrial plants and commercial buildings, and to treat commercial swimming pool water.

For example, in the food and cosmetic industries, having a network of dosing pumps enables the operators to closely regulate and adjust the levels of ingredients that go into a mixture. They are also used in all kinds of textile, chemical treatment, medical, and industrial applications.

Expert Advice

Dr. Lev Nelik recommends some valuable steps you can take to extend the life of your pump and ensure its operating under optimum conditions.

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Industry Updates

Switch to: Expert Advice | Pump Tweets

Franklin Electric recently announced that it completed its acquisition of a majority stake of Pioneer Pump Holdings Inc., the holding company for Pioneer Pump Inc. in Canby, Oregon and Pioneer Pump Limited in Rattlesden, England.

A recent National Geographic story notes the water-lifting device called a treadle pump as one of most transformative technologies ever developed.

Pump manufacturer Best PumpWorks recently announced its acquisition of the Shreveport, Louisana-based American Pump Technology, Inc.

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Pump Tweets

Fluid Dynamics, a division of Neptune Chemical Pump, announces that its dynaJET™ Dry Polymer Preparation technology can now be used in oil-and-gas production applications as a way of maximizing the recoverable resources found in mature wells.

Frost & Sullivan has honored NETZSCH Pumps & Systems with the 2011 Best Practice Award for increased customer benefit. NETZSCH's customer focus and product innovation were a few key factors in winning the award. NETZSCH is a leading manufacturer of progressive cavity pumps, screw pumps, lobe pumps, metering pumps and other equipment.

Colfax introduces an online energy savings calculator for oil and gas industry pump applications. The calculator allows head-to-head comparisons between centrifugal pumps and rotary positive displacement pumps in both single and multiple pump applications. Check it out at the Colfax website.

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