| 摘要 |
The invention relates to taps or cocks which comprise substantial improvements intended to achieve a good operation of said cocks, both at low and high pressures. It is a double operation cock. On the one hand, it operates as a silent and quick stopcock, using for closing purposes the pressure of the water lines, and on the other hand, when there is no pressure, it operates as a common cock, that is to say through the water pressure as the water level rises, said pressure being exerted on the float. The cock comprises a body provided with a fluid inlet tube (2) and a fluid outlet tube (3), and containing inside its cavity an assembly of coaxial elements related between each other so as to provide for the opening and closing of the fluid. The arrangement of said assembly of elements forms independent chambers wich communicate between each other through orifices and passages.
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