Patent ID: 6186175
Filing Date: 2001-02-13
Classification: F16K,Y10T

Abstract:
Rocker valve with pneumatic pre-control, comprising a housing with pressure connections, in which housing at least one rocker is arranged which is movable between two final positions about a pivoting axis solely by the pressure of at least one pressure medium fed to the valve via supply pressure connections, a sealing element being provided between the edge of the rocker and the inner wall of the housing at least on one side of the rocker as well as along the axis of the rocker, the housing including on each side of the rocker at least one pair of working pressure connections, said pairs of working pressure connections being arranged all on the same side with respect to a plane defined by the rocker, one working pressure connection of each of said pairs being provided with a valve seat oriented towards the rocker, the housing further including at least one further opening on an opposite side to said pairs of working pressure connections with respect to the plane defined by the rocker, through which at least one further opening at least one handle of the rocker can be impacted with pre-control pressure, the rocker in each of its final positions closing one of the valve seats of each pair of working pressure connections while opening the other one at maximal diameter.