Information about Chemical Pumps

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About Chemical Pumps

Chemical pumps are more durable than conventional pumps and move fluids in a variety of ways. There are three basic types of chemical pumps: centrifugal, metering, and positive displacement. Centrifugal pumps apply centrifugal force to generate velocity, use rotating impellers to increase velocity, and push fluids through an outlet valve. Metering pumps draw fluid into a chamber, close the inlet valve, and release fluid through the outlet valve. Positive displacement pumps use rollers, gears, or impellers to move fluid into a fixed cavity so that when liquid exits, the vacuum that is created draws in more fluid. Power sources for chemical pumps include AC or DC voltage, hydraulic or pneumatic systems, gasoline or diesel engines, and steam, water, and natural gas.

Products & Services Related to Chemical Pumps

Dosing Pumps

Dosing pumps are low-volume fluid pumps with controllable discharge rates used to inject additives into the mixing or pumping system.

Magnetic Drive Pumps

Magnetic drive pumps are sealless pumps that use a coaxial magnetic coupling to transmit torque to an impeller. A standard electric motor drives a set of permanent magnets that are mounted on a carrier or drive assembly.

Plastic Pumps

Plastic pumps are designed to move fluids that would corrode or damage other types of pumps. They provide broad chemical resistance and are less costly and lighter in weight than metal pumps.

Positive Displacement Pumps

Positive displacement pumps use a mechanical force such as gears, bladders, pistons, plungers or diaphragms to push liquid through and out of the pump.

Progressing Cavity Pumps

Progressing cavity pumps are a type of rotary positive displacement pump designed to transfer fluid or media with suspended solids or slurries from the suction side of the pump to the discharge side of the pump, from storage tanks or through pipelines.

Sanitary Pumps

Sanitary pumps are used to transport and meter solutions, slurries, and colloids of food and agricultural materials in operations such as food processing that require cleanliness. There are four basic types of sanitary pumps: centrifugal, positive displacement, jet, and airlift.

Syringe Pumps

Infusion or withdrawal syringe pumps provide high pressure and high accuracy for applications such as high performance liquid chromatography (HPLC). Used to deliver precise amounts of fluid at specific time intervals.

Engineering Web: Chemical Pumps - Machine Design

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