IWN - Quarter-Turn

Rotork Gears Series IWN quarter-turn gearboxes.

Heavy-duty quarter-turn gearboxes suited for plug, ball and butterfly valves in nuclear installations. Built to exceed the IEEE 382 specification and the 10CFR50 quality standard. Fully tested for inside containment and active duty but can also be used for outside containment, passive duty.

  • Torque range up to 48,809 Nm (36,000 lbf.ft)
  • 7 sizes
  • Ratios from 40:1 to 70:1
  • Ductile iron cast body
  • Viton o-rings
  • All-metallic bearings
  • Nuclear grade grease

See IWN Literature Page for further details.

IWN Gearbox Render