AB - Quarter-Turn Manual

AB - Quarter-Turn Manual

The AB range of quarter-turn operators have a cast iron housing and are intended for applications in chemical, power, waterworks, HVAC and most general industrial applications.

  • Cast iron housing (ductile iron optional)
  • Protected input shaft (Stainless Steel optional)
  • 15 sizes up to 32,000 Nm (23,600 lbf.ft) output
  • Ratios from 34:1 to 729:1
  • Rugged construction for all environments
  • IP67
  • Axial needle bearings
  • Polyurethane coating.
  • Stroke: 0 to 90º (+/- 5º adjustable)


  • Stainless steel input shaft
  • Ductile iron
  • IP68
  • AWWA
  • Various environments
  • Padlockable hanndwheels
  • Limit switches
  • High and low temperatures
  • Buried service

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