ES136550U - Aspirant pump - manual impeller for the transvase of corrosive liquids. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Manual aspirator-impeller pump for the transfer of corrosive liquids, which are of the type that are constituted by a piston with its corresponding rod that moves inside a cylinder and whose cylinder has an eccentric hole in its upper base to balance external pressures and upper region, essentially characterized in that coupled to a peripheral flap located on the lower edge of the cylinder, there is a valve body which has been made two separate collateral circular tills at the bottom of which fit equal valves and arranged in the same direction, retained by rigid or flexible pipes that protrude to the outside, in such a way that the upward movement of the piston or piston causes a rarefied or empty in the lower region with which one of the valves opens allowing the flow of the liquid that fills the suction pipe and the other valve to be arranged in the same sense that the opposite closes, contrary to what happens when the piston starts the downward movement, operation that results in the emptying of the cylinder through the discharge valve, having provided that each of the two valves, suction and discharge, which are exactly the same, consist of a disc which, in the resting position, remains in contact with its seat due to the pressure exerted on the disc by a spring, all of which is conveniently arranged inside a kind of cage, being manufactured each and every one of the parts that make up the pump and that are in contact with the liquid of a material resistant to corrosive liquids. (Machine-translation by Google Translate, not legally binding)