Z & J Technologies Gmbh

Wolfgang Zingsem

Norbert Marx

Ludwig Kesternich

The invention relates to a drive means for a slide valve having two parallel spindles () which are driven in rotation by at least one motor (), travelling nuts () which engage the spindles () and are movable in the longitudinal direction of the spindles by rotation of the spindles (), and a cross-yoke () which is arranged transversely with respect to the spindles () and is connected to the travelling nuts () on the one hand and to a rod () on the other hand, which rod is arranged in parallel between the spindles () and is connected or connectible to a slide plate, the rod () being axially movable by the motor () for the actuation of the slide plate. It is distinguished by the fact that the travelling nuts () and the rod () are each articulatedly connected to the cross-yoke ().

Drive means for a slide valve and a slide valve

A double-disc gate valve is provided, the shut-off or valve discs of which are displaceable from an open position into a closed position and vice versa by means of an actuator rod, there being associated with the actuator rod a locking device by means of which the valve discs, together with the actuator rod, are fixable in the closed position. The locking device is movable in the longitudinal direction of the actuator rod relative thereto from an unlocking position into a locking position and vice versa, the locking position being variable in dependence upon the closed position of the valve with predetermined maximum pressing force of the valve discs against the associated valve housing sealing seats.

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Juelich, Germany

Wolfgang Zingsem