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IW - Quarter-Turn Worm Gearbox

Valve-Gears IW range of quarter-turn operators is available with manual and motorised options and features a removable drive sleeve to accommodate machining to allow direct 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)

Other options are available, contact us for more details.

IW - Quarter-Turn Worm Gearbox