Samson Aktiengesellschaft

Holger Eckholz

Joerg Kiesbauer

Eugen Nebel

Dirk Hoffmann

The invention relates to a control valve () for controlling a fluid flow, comprising a valve housing () and a positioning element () which can be translationally moved and which includes a shut-off portion () and a throttle portion (), with a valve seat being furthermore provided which includes a sealing portion () and a throttle opening portion (), with the shut-off portion () of said positioning element () being adapted to cooperate with the sealing portion () of the valve seat () so as to enable shut-off of the fluid flow, and with the throttle portion () of the positioning element () being adapted to cooperate with the throttle opening portion () of the valve seat () so as to enable the setting of a defined fluid flow, with at least the surfaces of the throttle opening () and the sealing portion () being furthermore made of the same hard material. The invention is characterized in that the valve seat is designed as a valve seat insert () which includes the throttle opening portion () and the sealing portion (), said insert being inserted into the valve housing.

Control valve

In a control device for a technical processing plant, a pneumatically driven actuator having an actuator stem is provided together with a valve operated by the actuator, the valve having a valve stem. A valve element is attached to the valve stem. A stem connector connects the two stems to each other for a forced transmission of axial actuating movements and for modifying an axial distance between adjacent ends of the valve stem and the actuator stem to adjust a total axial length of the two stems. The stem connector comprises two half-shells connected to each other, and two positioning devices are provided for a friction-locking coupling of the half-shells to the respective ends. At least one of the positioning devices is designed to modify an axial attachment position of the half-shells along one of the stems.

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Brechen, Germany

Holger Eckholz