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 90º steps on the IW3 & through 45º steps on the IW4 to IW11. The baseplate can be
positioned through 45º steps on the IW3 to IW5 and through 22.5º steps on the IW6 to IW12. This facility allows for on or off centre mounting on the valve stool
without special machining.
Operating temperature normally ranges from -40 to +120 ºC, although other temperature ranges are available on request. Standard input (for actuation
purposes) and output flanges are to ISO 5211 standard. However, equivalent standards such as MSS & DIN can be supplied.
Application
Rotork Gears IW series operators are quarter-turn devices intended for the operation of ball, plug and butterfly valves as well as power and process dampers.
The gearboxes are suitable for manual and motorised applications.
Features
Totally enclosed gearing
Grease filled for life & fully sealed
Comprehensive gear ratios combined with a selection of auxiliary input spur gear reducers
Angular contact bearings supporting worm shaft
Removable output sleeve
Repositionable baseplate facility
Adjustable mechanical stops (at 0º and 90º ±5º)
Environmental Specification
Enclosure: IP67 standard suitable for submerged duty up to a depth of 1 metre for 30 minutes
Enclosure IP68 suitable for submerged duty up to a depth of 15 metres for 72 hours
CS type suitable for continuous submerged duty up to a maximum depth of 15 metres
Temperature: -40 to +120 ºC (-40 to +250 ºF)
Options
Ductile Iron
IP68
AWWA
ATEX
Nuclear
All types of environment
High & low temperatures
Padlockable handwheels
Limit switches
Lever arms
Travelling nut for applications requiring less than 90º travel and more than 90º
Interlock Korea, the power moving the world
