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Vergara Fernandez Francisco
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Vergara Fernandez Francisco
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Publication of ES178355YpublicationCriticalpatent/ES178355Y/en
Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
"Pump for acids", which being completely constructed in different types of plastic material, is essentially characterized in that in the lower end area of its vertical axis, a cylindrical body of teflon or similar is incorporated under pressure, by whose exterior it is embraced by another similar body which in turn is inserted under pressure into the upper cylindrical interior of the housing, these two latter pieces being conveniently embraced and fixed by a bushing, so that between the two pieces of Teflon a small gap or clearance is left to be occupied by the liquid during operation, and to act as a lubricant, (Machine-translation by Google Translate, not legally binding)