- Designed and developed for especially ball, plug & butterfly valves

- Self locking combination of spur & worm gears that require no brake

- The motor is a specially designed induction motor that produces high starting torques and thermally protected from overheating

- Mechanical stopper bolts to provent from over travel

- Easy set cams without special tools

- Manual operation by wrench directly to the worm gearbox and dial position indication