Product Range



The in-house manufactured Konrad gear mainly consists of a trapezoidal thread spindle with a travelling nut and a lever that is permanently mounted to the drive shaft. The flux of force is transmitted by two straps which are fixed to the travelling nut and the crank arm.
In the closed position, the straps and the crank arm form a toggle lever that continually adapts itself to the load cases and also has a favourable effect on the closing characteristic of the shut-off valve.

The gear is self-locking, and the existing valve position is indicated on a scale on the housing cover. If higher torques are necessary, for example in the case of large nominal sizes, the gear can be additionally equipped with a worm transmission unit. All handwheel-operated gears are so designed that electric motors can be easily flange-mounted later on.