Diaphragm Pump

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Related to diaphragm pumps: Membrane pump

diaphragm pump

[′dī·ə‚fram ‚pəmp]
(mechanical engineering)
A metering pump which uses a diaphragm to isolate the operating parts from pumped liquid in a mechanically actuated diaphragm pump, or from hydraulic fluid in a hydraulically actuated diaphragm pump.

Diaphragm Pump

 

(also called membrane pump), a pump in which the role of the piston is played by a flexible plate or diaphragm that is fastened at its periphery and is flexed by the action of a lever mechanism or by variations in the ambient pressure. Deflection of the diaphragm in one direction causes suction of the liquid being pumped; deflection in the opposite direction applies pressure to the liquid. Diaphragm pumps are used in conveying water that contains an admixture of soil (so-called frog pumps) and in conveying chemically active or flammable liquids.

diaphragm pump

A pump in which the piston is replaced by a clamped diaphragm that is set in vibration by a reciprocating rod, attached at its center.
References in periodicals archive ?
THE successful use of a Hydra-Cell hydraulically flexed diaphragm pump supplied by Michael Smith Engineers to increase local humidity for the prevention of static electricity build-up in a wool spinning process.
The company manufactures and provides pumps ranging in size from 2 inch to 18 inch, including wet and dry-prime trash pumps, utility trash pumps, sound attenuated models, diaphragm pumps, hydraulic submersible pumps, high-pressure pumps and wellpoint pumps as well as bypass systems, wellpoint systems and a complete line of accessories.
A variety of double diaphragm pumps are available, including: PDM 0.
DEPA Air Operated Diaphragm pumps are designed and manufactured by German-based Crane ChemPharma Flow Solutions.
Circulation of liquid through the centrifugal pump and SPA circuit allows high-performance centrifugal pumps to be primed faster and to greater lift suction than positive displacement diaphragm pumps.
Stainless steel cabinetry, reliable gear and diaphragm pumps, a sealed keyboard and stainless steel printhead allow the Streamline to operate in the most extreme factory environments.
Optional features: Drum pumps, diaphragm pumps, auto-fill valves, air dryer, magnetic couplings for feed pumps and/or metering pumps, mixhead boom, tube-and-shell (vs.
Powerwise has added the Liquid Flow to the KELVA, a series of double diaphragm pumps, to its pump range.
The hydraulically actuated diaphragm pumps offer leak-free metering of a wide variety of corrosive, flammable or hazardous liquids.
Dover Corporation, New York, NY, has announced that its subsidiary Dover Resources has acquired Almatec GmbH, a manufacturer of air-operated double diaphragm pumps.
established in 1965, is a market leader in the manufacture of air-operated double diaphragm pumps and accessories.
Blagdon Pump, one of the world's leading manufacturers of air-operated diaphragm pumps, has appointed Michael Johnson as general manager at its Washington base.