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Instantly add the Rotork IW Range - Quarter-Turn Worm Gear Operator and 50,000+ more product series to your store or catalog  
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Rotork IW Range - Quarter-Turn Worm Gear Operator

Brand: Rotork PLC
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The IW range of quadrant Worm gear valve operators is available in manual and motorized 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

IW series operators are 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.

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Certification

Manuals

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