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Priority to ES1972178356UpriorityCriticalpatent/ES178356Y/en
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Publication of ES178356YpublicationCriticalpatent/ES178356Y/en
Filter valve, essentially characterized in that it is constituted by a set formed by two upper and lower bodies, hollows, of which the upper one has an embouchure or entrance of conical slope, which gives way to another zone of quadrangular section, traversed in a direction by a gap that leaves two windows of a certain amplitude in communication with the outside, this hole having a small area in the upper part slightly smaller than the rest of it. (Machine-translation by Google Translate, not legally binding)