Control valve for controlling mass flow of gaseous or liquid medium in pipe of steam turbine, has disk-shaped shut-off disk rotary mounted in housing, where shut-off disk is pivoted between locking position and opening position

摘要

The control valve (1) has a disk-shaped shut-off disk rotary mounted in housing. The shut-off disk is pivoted between a locking position and an opening position around a rotational axis. The control valve is provided with a housing insert, which is provided with a spherical inner contour. The shut-off disk (3) is provided with an integrated additional valve (20), which operated in the locking position of the shut-off disk operable between the locking position and the opening position.