Rotork has received major contracts to supply electric and pneumatic valve actuators and valve gearboxes to Hengli Petrochemical...
The IW range of quadrant Worm gear valve operators is available in manual and motorised configurations and features a removable sleeve to facilitate bore and keyway machining. This sleeve can be rotated in steps to facilitate mounting to the valve.
IW size 3 to 13 torque range up to 264,000 Nm.
IW size 14 to 17 torque range from 250,000 Nm to 850,000 Nm.
- Worm shaft supported by angular contact bearing
- High efficiency and multiple ratios
- Removable drive sleeves up to IW11
- Stroke: 0 to 90º (+/- 5º adjustable)
IWD gearboxes have a unique flange designed to accept an actuator without a base fitted - IQ and AWT ranges, sizes 1 & 2 only.
See IW Literature Page for further details.