Ultraflo 100 Series Pneumatic Actuators

Compact rack and pinion design with bonus standard features

There are many different variations available to fit your specific needs. Please Contact Us for a free quote or consultation.

UltraFlo 100 Series Pneumatic Actuators


  • Rack and pinion
  • Available in double acting and spring return designs
  • Compact design
  • Bonus features come standard
  • direct mounting to UltraFlo butterfly valves
  • NAMUR standards for mounting UltaFlo accessories
  • Max pressure 140psig (10 bar)
  • Travel stop system with steel alloy cam
  • Pre-loaded contained spring packs
  • Fully enclosed and self contained


  • Torque: to 44,130 Lb-in (4,986 Nm)
  • Output Shaft/Pinion: Carbon Steel, Zinc Plated
  • Pressure Rating: Max Pressure: 140psig (10 Bar)
  • Temperature Range: -40°F (-40°C) to +200°F (+95°C)
  • Body Materials: Extruded Aluminum - Anodized


Keystone Product Brochure Keystone Case Studies
Keystone Document Library Pentair Press Releases