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Valves & Actuation

Plastic Pneumatic Actuators

Series 79 PAG

Series 79 PAG pneumatic actuators have a glass-reinforced polyamide housing for chemical resistance and high strength. The actuator functions using a double piston rack and pinion arrangement for a smooth torque profile throughout the actuator stroke. Air-to-spring models feature a concentric spring set for consistent output torque. The base of the actuator has an ISO output drive and bolt circle for easy mounting to quarter turn valves. The top of the actuator has a visual position indicator and a NAMUR mounting pad to accommodate mounting accessories. The air ports are 1/4" NPT and have a NAMUR bolt pattern to accommodate flush mount solenoids.

Ideal Applications Include:

Chemical Processing, Bleach Plants, Aquariums, Mining, Water Treatment, Landfills, Swimming Pools, Power Plants



58 to 1,335 in-lbs


Glass-reinforced polyamide housing, stainless steel shaft and hardware


Air-to-spring (fail closed)
Air-to-spring (fail open)


  • Actuator body and end caps constructed of glass-filled polyamide
  • Double piston, rack and pinion operation
  • 80psi to 120psi recommended operating pressures
  • Fail positions can be specified for air to spring actuators
  • Visual position indicator
  • -25° F to 195° F operating temperature range
  • 1/4" NPT air connections
  • ISO output drive and bolt pattern for easy mounting
  • NAMUR accessory mounting
  • Outout shaft is 300 stainless steel


  • Double limit switch boxes
  • Sizing for lower air supply pressures (down to 60psi)
  • Pneumatic (3 - 15psi) positioners
  • Electro-pneumatic positioners (4-20mA)
  • Limit switches and transmitters available for positioners
  • BUS systems
  • Direct mount solenoids in various enclosure type and operating voltages