Rotork Gearboxes

W Quarter turn Gear Series
The IW series of quadrant worm operators has been designed with customer stocking in mind, and features a removable steel output sleeve to facilitate bore and keyway machining. This separate output sleeve can be positioned through 90 steps on the IW3 & through 45 steps on the IW4 to IW11. The baseplate can be positioned through 45 steps on the IW3 to IW5 and through 22.5 steps on the IW6 to IW12. This facility allows for on or off centre mounting on the valve stool without special machining.