FIELD: water supply systems; water dispensing wells.
SUBSTANCE: proposed device includes casing string, pump, delivery branch pipe and cone-shaped sealing collars made from elastic material mounted on it. Device is additionally provided with at least four flanges connected in pairs and two rings secured on casing sting between each pair of flanges. Sealing collars are also located between flanges. Upper flanges of each pair, upper parts of rings and sealing collars have taper surfaces. Lower flanges of each pair and lower parts of rings have cylindrical surfaces. Upper flanges and ring are provided with projections.
EFFECT: enhanced reliability.
4 cl, 1 dwg
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APPARATUS FOR PUMPING LIQUID OUT OF WELLS | 0 |
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Authors
Dates
2004-06-20—Published
2002-10-14—Filed