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Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
Foot valve for pumps characterized essentially by being composed of an upper and lower body between which the valve itself is arranged in which the lower body that is cylindrical has an inner wall in the shape of a cone whose wall starts from the lower edge of said body and whose cone has a plurality of perforations for the passage of water presenting the wall of the aforesaid body orifices of passage of air and this lower body being provided with feet that come out of its lower edge. (Machine-translation by Google Translate, not legally binding)
ES109532U1964-10-281964-10-28
A FOOT VALVE FOR PUMPS.
ExpiredES109532Y
(en)