My watch list  

Airlift pump

An airlift pump is a simple pump which is powered by compressed air.

Airlift pumps are often used in deep dirty wells where sand would quickly abrade mechanical parts. (The compressor is on the surface and no mechanical parts are needed in the well). However airlift wells must be much deeper than the water table to allow for submergence. Air is generally pumped at least as deep under the water as the water is to be lifted. (If the water table is 50 ft below, your air should be pumped 100 feet deep).

Method of Operation

Typically, the compressed air is pumped down a pipe into a well and bubbles into another larger diameter pipe. The air bubbles return to the surface in the larger pipe. Since the resulting air-water mixture is less dense than the surrounding water, it rises and a fizzy spurting flow of air and water results.

See also

  • Airlift (dredging device)

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Airlift_pump". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE