COAXIAL VALVE HAVING A SEALING ELEMENT

摘要

A coaxial valve (10) has a valve housing (11), on which an inlet port (12) and at least one outlet port (14) for a medium (15) which is to be conducted through the coaxial valve (10) are provided. A control tube is mounted in the valve housing, said control tube being movable in its longitudinal direction in the valve housing (11) and interacting with the inlet port (12) and the outlet port (14) in such a way that when the coaxial valve (10) is opened medium (15) flows through the control tube. At least one valve seat within said valve housing has a valve seat face, the control tube interacting with the valve seat face in one of its axial end positions in order to close the coaxial valve (10). A control device moves the control tube between its end positions. The valve seat face is formed on a replaceable sealing element (22) which is arranged in an opening (19) of the valve housing (11), said opening (19), running essentially transversely with respect to the longitudinal direction.