Rotation valve with valve seat opening for controlling the flowing gaseous or liquid medium in pipes, comprises rotatable cylinder for mounting the valve opening

摘要

A rotatable cylinder (3) is used for mounting the valve opening. An enclosed band (5) closes or opens the through-flow of the liquid or gaseous medium. One space (1) is provided with a valve opening (4) and another space (2) is required for a further opening (4a). The spaces are separated by sealing rings.