What is a Diaphragm Pump
A reciprocating diaphragm pump has a diaphragm [generally a circle] sealed on all edges, inside a chamber, the diaphragm could be made of rubber or other material that moves up and down with a piston type action.
There is a valve on the outlet side of the discharge, this is a flapper type valve that closes when the diaphragm moves down, allows the water liquid to flow into the pump chamber, the diaphragm moves up closes a flapper type valve on the suction or inlet side, this allows the flapper type valve to open on the discharge side and the water liquid flows out, this motion is repeated at a faster rate, result, liquid is sucked or pulled into one side of the pump chamber and discharged out the other side of the chamber.
The diaphragm pumps are used on construction projects, by city utility districts, contractors, landscapers, and are available for rent at many rental companies.
Diaphragm pumps are a needed tool working in the construction field, when muddy water with sand—small grit—gravel—dirt—silt or other solids are mixed in the liquid that needs to be pumped—example: water line repair or installation—sewer line repair or installation or storm drainage repair work.
A diaphragm pump is a pump that is self-priming.
A diaphragm pump is not damaged if water liquid is not flowing though the discharge—running dry.
A diaphragm pump needs a motor to operate the diaphragm when operating at an operating speed, there is also a pulsating motion as the liquid moves though the pump.
There are many sizes of diaphragm pumps made depending on the job requirements.
For more information go to http://www.excavating info.com