ES229368U - Key for hydraulic conductions. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Key for hydraulic pipes, which are formed from a general body with connection branches at the entrance and exit, respectively, of the fluid, and whose body has axially in correspondence with the entrance branch, with a tubular chamber that serves as permanent housing to a non-return valve capable of effecting, at will, the hermetic closure of the fluid inlet branch at the manual request of an external control; it is essentially characterized in that the external control is constituted by a kind of cap predominantly cylindrical, provided with thread, internal for threading in a cylindrical neck in which the chamber for the non-return valve is extended as opposed to the mouth of the branch of fluid inlet, and whose cylindrical neck, in turn, internally configures an annular seat and a second thread for the adaptation of a ring through whose orifice runs a rod secured to the sole base of the cylindrical cap; it being provided that said rod, at its free end, has an axial and blind hole that serves as a guide to a rod that is a prolongation of the non-return valve itself; the shank being surrounded by a helical expansion spring, and the valve formed by a disc facing the mouth of the fluid inlet branch. (Machine-translation by Google Translate, not legally binding)