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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
As part of the largest job in LEWA's history, a total of 40 process diaphragm pumps for MEG injection were built for the end customer, an international company, in 2013.
The CU Mini Diaphragm Pumps are designed for applications with high humidity, and are also ATEX certified for potentially explosive atmospheres.
Letaba Industrial Pumps (Letaba), a division of the Set Point Group, will be displaying its Wilden hygienic and Almatec Biocor air-operated double diaphragm pumps, as well as Neptune chemical metering pumps, at the inaugural Food and Drink Technology Africa event this March.
The KNF LABOPORT corrosion-resistant vacuum pumps from KNF Neuberger are compact diaphragm pumps that feature polytetrafluoroethylene (PTFE)-wetted parts, condensate-resistant multiport FFPM valves, and PTFE-bonded diaphragms.
BIOCOR Air-Operated Diaphragm Pumps contain no horizontal areas.
N0150 diaphragm pumps can be customized with water-cooled heads to prevent pump overheating in process applications where exothermic reactions from helium, xenon, and other gases may produce excessive heat and potentially shorten pump service life.
Sera, one of the world's leading manufacturers of chemical dosing pumps and equipment, has developed four new types of multilayer diaphragm pumps and four new types of piston diaphragm pumps featuring the multilayer diaphragm technology.
began inventing, patenting and building pump products that earned him a reputation for innovation including vacuum-assisted wellpoint pumps, high-pressure jet pumps and diaphragm pumps to service customers throughout the Central Florida area.
Ltd, a leading UK distributor of pump and power transmission equipment, has announced the launch of a new website dedicated solely to DEPA Air Operated Diaphragm pumps, one of its best selling products.
Since most of these systems incorporate fluidic modules consisting of miniature diaphragm pumps and solenoid valves, these components need to be optimized to best achieve the market demand objectives.
Tomlinson Hall & Co Ltd, leading UK distributor of pump and power transmission equipment, has announced the launch of a new website dedicated solely to DEPA" Air Operated Diaphragm pumps, one of its best selling products.
This manufacturer of air-operated double diaphragm pumps and accessories has introduced a line of E7 3/4" aluminum diaphragm pumps.