Diaphragm Pump


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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 7615 is an addition to the existing type 7604 micro pump, which is a unique, self-priming, adjustable, diaphragm pump measuring only 11mm in width and designed for continuous pumping applications in the l-5ml/min range.
The Solution: The piston pumps were replaced with two Hydra-Cell close-coupled triplex diaphragm pumps with AC inverter rated motors which were installed to pump the demineralised water.
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.
We describe a compact compression apparatus for polarized gas that is based on a modified commercial diaphragm pump.
The milling system included an air diaphragm pump for circulation to improve grinding and to quickly discharge the mill.
With the introduction of its newest range of pumps, Pulsafeeder, an innovator of metering pumps for over seventy years, has re-invented the hydraulically balanced diaphragm pump design.
As a result, the operational and maintenance costs of peristaltic pumps are almost two and a half times less than those of a diaphragm pump and more than three times less than a lobe pump.
The Liquid Flow is a compact air operated double diaphragm pump with low pulsation.
A diaphragm pump used for producing melamine resins, adhesives, binding agents, and flame retardant substances, has been introduced by American Lewa, Inc.
This new unit contains a calibrated 35-gallon drum and an air-operated diaphragm pump, mounted on a cart.
Accordingly, NIST researchers modified a commercial diaphragm pump and tested it for use with polarized [He.
This alliances marries Yamada's ultra-reliable air operated diaphragm pump technology with Gore ONE-UP(R)Pump Diaphragms that offer twice the service life of other PTFE diaphragms currently on the market.