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Priority to ES1980248294UpriorityCriticalpatent/ES248294Y/en
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Publication of ES248294YpublicationCriticalpatent/ES248294Y/en
Improvements in butterfly valves, essentially characterized in that the valve body is integral for all the usual diameters and directly presents the connection holes to the mounting flanges, without any need for auxiliary counterflanges from certain diameters, and that the throttle lever that over the upper protruding square is connected to the upper cover and next to the upper shaft, the throttle has the lower shaft with a through screw accessible from the outside of the valve body that when activated takes the upper shaft ensuring the correct functioning of the valve. (Machine-translation by Google Translate, not legally binding)
ES1980248294U1980-02-011980-02-01
IMPROVEMENTS IN BUTTERFLY VALVES
ExpiredES248294Y
(en)