iw.png
Images are representations only.

Rotork IW Range - Quarter-Turn Worm Gear Operator

Brand: Rotork plc

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 to 850,000 Nm.

IWD gearboxes have a unique flange designed to accept an actuator without a base fitted - IQ and AWT ranges, sizes 1 & 2 only.
Features
  • Worm shaft supported by angular contact bearing
  • High efficiency and multiple ratios
  • Removable drive sleeves up to IW11
  • Stroke: 0 to 90º (±5º adjustable)

Specifications

Brand

Environmental Protection

  • IP67
  • IP68 Optional

Temperature Range

  • Extra High: -4° to 392° F (-20° to 200° C)
  • High: -4° to 302° F (-20° to 150° C)
  • Low: -76° to 250° F (-60° to 121° C)
  • Standard: -40° to 250° F (-40° to 121° C)

Ratio

  • 80 to 5,760 (X:1)

Torque

  • Input: Max. 6,000 Lbsft
  • Output: 600 to 195,000 Lbsft

Approvals & Certifications

  • ATEX

Material of Construction

  • Baseplate, Adaptor & Reducer Gearcase: Cast Iron
  • Drive Screw: Portected Carbon Steel
  • Gearcase, Baseplate, Quadrant: SG Iron
  • Output Sleeve & Spur Gear: Steel
  • Position Indicator, Nordlock Washers & Fastener: Protected Steel

Shaft Material

  • Steel

Flange Material

  • Input: Cast Iron/SG Iron

Seal Material

  • Nitrile Rubber

O-Ring Material

  • Nitrile Rubber

Documentation

Certification

Manuals

Product Brochures

show more