Control valve in particular for fluids having efflux possibility for large mass flows

摘要

Control valve for the mass flow rates of fluids, with a valve housing of which opens into an inlet chamber inflow connection for the fluid under high pressure and / or high temperature, with from an outflow chamber outgoing discharge pipe for the with a reduced pressure and / or a reduced temperature outflowing fluid, with an inflow and outflow chamber be connected with a valve insert, as well as in the valve insert, provided by means of a drive by a " of the closed position into a " " open position ", which is axially displaceable by a hole throttle basket for at least one control stage surrounding the valve stem, wherein the inner side of the valve insert and the outer side of the valve stem for each control stage have an approximately equal length recess, wherein the hole throttle basket for each control stage in each case by a number of through-flow apertures and corresponding to this, in each case at least one outflow opening, and wherein, in particular, a last step as the abströmstufe is provided, characterized in that the hole throttle basket (15) in the region of the outflow opening (17) of each control stage (a, b, c,...) is formed by the recesses (18), and that the valve stem (11) through the open position " ", into a position in which is movable " through flow position ", in which the recesses (18) in the region of the annular flange (9) to form flow bypasses (20).