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Priority to ES1975215873UpriorityCriticalpatent/ES215873Y/en
Publication of ES215873UpublicationCriticalpatent/ES215873U/en
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Publication of ES215873YpublicationCriticalpatent/ES215873Y/en
Butterfly valve, characterized by the fact that at the edge, upstream, of the sleeve or body that arms the valve, there is a sealing ring with a chamfered edge in counter-direction according to the flow direction and adopting an elastic lining to contact in a watertight correspondence with the perimetral size in slope, according to the same direction of flow, of the edge of the butterfly plate, whose edge has a supplement or welded stainless steel lining that contacts in a bevelled plane against flow, producing a tight and full seal. (Machine-translation by Google Translate, not legally binding)