STEAM EXPANDER AND VALVE SHAFT GUIDE FOR A STEAM EXPANDER

摘要

The invention relates to a valve stem guide for a steam expander with a housing, with at least one opening running in the housing for receiving a valve stem; wherein - a sliding bush is inserted into the opening, which has an inner guide surface for forming a sliding bearing for the valve stem; - the sliding bush is screwed directly or indirectly into the housing; A valve seat ring is inserted into the opening in the housing coaxially to the slide bushing. The valve stem guide according to the invention is characterized in that the slide bushing is only inserted into the valve seat ring.