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Individual
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Priority to ES1973197157UpriorityCriticalpatent/ES197157Y/en
Publication of ES197157UpublicationCriticalpatent/ES197157U/en
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Publication of ES197157YpublicationCriticalpatent/ES197157Y/en
Valve device, which is essentially characterized by being formed by an elbow pipe, which has a conical seat on one of its mouths on which rests an internally conical valve with a maximum diameter equivalent to the external diameter of the mouth described, with the particularity of that the stem of said valve passes sealingly the conduction wall opposite the mouth carrying the seat, to receive a helical spring, mounted around it, which is trapped between the external surface of the repeated conduction and a set of nut and lock nut, threaded on the end of the rod, through which the tension of the spring can be regulated. (Machine-translation by Google Translate, not legally binding)