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Quarter Turn | Keystone

Pneumatic Actuators - Figure 79U/79E - Model 002 to 036

Keystone Actuators & Controls, Pneumatic Actuators, Quarter Turn

Double Acting and Spring Return pneumatic actuators for on/off or modulating control of most quarter turn applications. Output torques to 619 Nm.

Features & Benefits:

  • Compact rack and pinion design utilising the whole piston area to develop output torque.
  • Adjustable travel stops in both directions.
  • Pistons with integral rack drive reducing the number of dynamic seals, minimising air leakage.
  • Double pistons nullify sideloads on the pinion shaft, minimising bearing wear.
  • Internal air porting.
  • Hard anodised aluminium body protects against corrosive environments including saliferous atmospheres.
  • Female output drive enabling direct mounting in certain applications, thereby eliminating special connections to guarantee correct alignment.
  • Bottom entry pinion shaft.
  • Anti-friction piston pads ensuring no metal to metal contact, providing a smooth operation. Ideal for modulating or on/off control applications.
  • Grease lubricated for life.
  • An extensive range of standard accessories are available for direct mounting to Keystone actuators.
    • Solenoid Valves - weatherproof to intrinsically safe.
    • Limit Switchboxes - weatherproof or explosionproof.
    • Positioners - pneumatic electropneumatic and programmable.
    • Declutchable manual override gearbox.
    • High Visibility Indicator.

  • Max. supply pressure: 1000 kPa (10 bar)
  • Rated supply pressure: 830 kPa (8.3 bar)
  • Output torque: up to 619 Nm @ 830 kPa
  • Temperature range: -30° to +90°C
  • Min. supply pressure: 240 kPa (2.4 bar)
  • For higher temperature applications other materials available on request.

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Technical Data Sheets

F79U/F79E 002 to 036 - Pneumatic Actuators (English)

Double Acting and Spring Return pneumatic actuators for on/off or modulating control of most quarter turn applications..

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CAD Drawings

F79U 002 DA.stp (English)

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CAD Drawings

F79U 002 SR.stp (English)

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CAD Drawings

F79U 002 DA.pdf (English)

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CAD Drawings

F79U 002 SR.pdf (English)

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CAD Drawings

F79U 003 DA.stp (English)

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CAD Drawings

F79U 003 SR.stp (English)

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CAD Drawings

F79U 003 DA.pdf (English)

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CAD Drawings

F79U 003 SR.pdf (English)

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CAD Drawings

F79U 006 DA.stp (English)

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CAD Drawings

F79U 006 SR.stp (English)

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CAD Drawings

F79U 006 DA.pdf (English)

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CAD Drawings

F79U 006 SR.pdf (English)

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CAD Drawings

F79U 012 DA.stp (English)

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CAD Drawings

F79U 012 DA.pdf (English)

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CAD Drawings

F79U 012 SR.pdf (English)

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CAD Drawings

F79U 012 SR.stp (English)

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CAD Drawings

F79U 024 DA.stp (English)

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CAD Drawings

F79U 024 DA.pdf (English)

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CAD Drawings

F79U 024 SR.stp (English)

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CAD Drawings

F79U 024 SR.pdf (English)

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CAD Drawings

F79U 036 DA.stp (English)

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CAD Drawings

F79U 036 DA.pdf (English)

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CAD Drawings

F79U 036 SR.stp (English)

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CAD Drawings

F79U 036 SR.pdf (English)

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