Chemical Metering Pumps

A reliable source for Metering Pump information and leading Metering Pump Companies & Manufacturers.

Used in applications for municipal and industrial markets, chemical pumps are found in waste water and municipal water treatment facilities, swimming pools, industrial process water, as well as packaging systems and dosing systems. Read More…

Chemical Metering Pumps Chemical metering pumps are used to dispense virtually any liquid such as chemicals and acids, as well as viscous liquids and suspended solids, with precise accuracy.

Leading Manufacturers

Malvern, PA  |  877-778-3456

We are able to provide chemical metering pumps that our competition cannot match! We began our business operations years ago as a small company and we have grown into a company dedicated to providing our customers with the same service we provided all those years ago. To receive the highest levels of customer service in the industry contact our friendly staff today to get started!

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Jaeco Fluid Systems, Inc. $$$

Burbank, CA  |  800-848-1141

Ryan Herco Flow Solutions is a leading national distributor for fluid handling products. Our family of products include; Flowmeters, sensors, instrumentation tubing and hose, process pipe and fittings, valves, pumps, filters and filter systems, storage and drums, and corrosion resistant structural products. We have 29 U.S. Service Centers ready to serve you.

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Ryan Herco Flow Solutions $$$

Horsham, PA  |  281-578-4200

Inframark offers the PDS™ (Precision Dosing System) as a pre-assembled and pre-wired packaged system designed for efficient and precise chemical injection. The PDS system features corrosion-resistant materials for all wetted components. The proven, accurate design and durable construction of the PDS System ensure low maintenance and dependable operation for the life of the equipment.

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Inframark $$$

Lafayette, LA  |  337-235-9838

Sidewinder manufactures pneumatic and electric metering pumps. With the patented timer and adjustable stroke control, the pneumatic line provides flows to 680 QPD up to 10,000 PSI. The electric line is available in simplex and multiplex design with flows to 60 GPH and pressures to 1,000 PSI.

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Sidewinder Pumps, Inc. $$$

Wilmington, MA  |  800-282-8823

A manufacturer of metering pumps and products such as sealless pumps, dispensing pumps and chemical feed pumps, Watson-Marlow serves a variety of industries. Our benchtop pump reaches such a high level of accuracy it can dispense to within 0.5%; it also can meter out 100ml in 4 seconds.

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Watson-Marlow Fluid Technology Group $$$
placeholder image Jaeco Fluid Systems, Inc. Ryan Herco Flow Solutions Inframark Sidewinder Pumps, Inc. Watson-Marlow Fluid Technology Group

There are three basic parts to a chemical metering pump: a pump head, a piston, and an electric motor. The liquid typically goes into the pump head through an inlet line. A motor, typically a small electric motor, is used to drive the piston which helps to move the liquid through the pump head into an outlet line. When the piston moves out of the pump chamber, a vacuum is created which pressurizes the liquid in the chamber and causes it to move. The inlet and outlet valves only allow liquid to travel in the desired direction and prevent backflow and contamination of the pumping system.

In some pumps, a pressure relief valve is inserted to prevent the buildup of pressure and potential damage to the system if the liquid flow is stopped for some reason. Further precautions can be taken in metering equipment with a leak detection system and external alarm and shutoff switch in the event of liquid leakage.

As some of the liquids handled by chemical metering pumps are acidic or caustic, it is always important to check for chemical compatibility of the materials before determining the specifics of a pump. Components can be added to help calibrate a liquid pump, ensure the maintenance of pressure and prevent siphoning from a system. Various operating options for chemical metering pumps exist to further adjust the system to specific requirements. They can be constructed with manual or automatic operation control which will be determined by the nature of the pump's application.

The pump system can be totally enclosed or partially enclosed, and the materials commonly used to make the housings are high-strength polymers such as PVC, PVDF or polypropylene, or in some cases aluminum or stainless steel can be used, depending on the liquid or chemical being dispensed. Due to the often harsh chemical environments, chemical metering pumps are typically constructed to be rugged and reliable. While maintenance is important, simple metering systems should be fairly low maintenance due to the minimal parts. However, especially in applications where liquid dispensation is continual, heavy duty pumps will be required.