Uses a positive displacement design rather than centrifugal force to move water through the casing, delivering a specific amount of flow per stroke, revolution, or cycle. Due to their great air handling capabilities, diaphragm pumps are ideal for applications involving slow seepage at the point of suction.
Air operated pump that uses a flexible diaphragm to separate the pumping chambers. Handles high viscosity liquids or liquids with suspended solids.
A type of pump in which water is drawn in and forced out of one or more chambers, by a flexible diaphragm. Check valves let water into and out of each chamber.
The most common type of air pump. A great variety of brands and styles are available which produce different amounts of air, with differing amounts of noise.
A pump that uses two valves and a moving diaphragm to move substances through it, analogous to the way a heart functions. Diaphragm pumps require no oil for their function. Diaphragm pumps operate in the rough or coarse vacuum range down to approximately 1 mbar. Fine vacuum: Pressures in the range from 1 mbar to 10-3 mbar also known as medium vacuum. Pressures in this range are usually produced by either rotary vane or roots pumps. The most common laboratory application requiring a pressure this low is freeze drying.
A positive-displacement pump in which the reciprocating piston is separated from the solution by a flexible diaphragm, thus protecting the piston from corrosion and erosion and avoiding related problems with packing and seals.
A diaphragm pump is a positive displacement pump that uses a combination of the reciprocating action of a rubber or teflon diaphragm and suitable non-return check valves to pump a fluid. Sometimes this type of pump is also called membrane pump.