Diaphragm Pump


Also found in: Dictionary, Wikipedia.

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 ?
For Welsh Water, maintenance time with the Qdos pumps is now just a few minutes--whereas clearing a blockage from a diaphragm pump would take more than an hour, and would be required far more frequently.
Thanks to recent advances in diaphragm pump technology, this pump type is preferred over traditional reciprocating piston, scroll or rotary pumps.
TechNavio's analysts forecast the Global Diaphragm Pump market to grow at a CAGR of 5.
Designed to meet high standard of cleanliness and specific requirements for the food and beverage industry, these diaphragm pumps are easy to operate and maintain.
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 NMS010 micro diaphragm pump from KNF (Trenton, NJ) is an efficient and reliable solution to transfer, evacuate, or compress gases for portable monitors, medical, and other gas-sampling instrument applications requiring high performance in a small package.
The pump assembly is based on an air-operated diaphragm pump with stainless steel housing and Teflon diaphragms and balls.
The Liquid Flow is a compact air operated double diaphragm pump with low pulsation.
The Prominent piston diaphragm pump is used for batching of sizing agents.
The unit contains a compact floating inlet device, suction strainer to remove solids, air-operated diaphragm pump, and an oil separation tank with permanent oil separator elements, mounted on a 14" X 14" footprint.
This is a non-metallic air-operated diaphragm pump which combines efficiency, style and reliability.
The Toppa Series pneumatically powered diaphragm pump is new from E.