Pneumatic Actuators

Series 79P/PA

Series 79P/PA pneumatic actuators have an aluminum housing with cataphoresis and Rilsan coating for chemical resistance. Air-to-spring models feature pre-loaded springs that safely avoid potential hazards during maintenance. The actuator functions using a double piston rack and pinion arrangement for a smooth torque profile throughout the actuator stroke. 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 1/2″ NPT and have a NAMUR bolt pattern to accommodate flush mount solenoids.

Document Finder 79P/PA Pneumatic Actuators Resources

Resources:

Data Sheet

Ideal Applications Include:

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

Specifications:

Type:

Double piston, double rack and pinion

Models:

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

Air Supply:

60psi – 120psi

Bodies:

Cataphoresis and Rilsan-coated aluminum body and end caps

Torque:

59 to 40,710 in-lbs

Air Connections:

1/4″ NPT

Mounting Dimensions:

ISO and NAMUR

Features/Benefits

Cataphoresis and Rilsan-coated aluminum body and end caps
Double piston, double rack and pinion
ISO valve mounting pattern
ISO female star output drive
NAMUR accessory mounting pattern
80psi (recommended) to 120psi (maximum) filtered air supply
Spring return models have cataphoresis coating, or chromium passivation for spring protection
End position adjustable travel stops
Polyacetal or PTFE/bronze piston guides
Self-lubricating BUNA-N o-ring seals
-25° F to 195° F temperature range
1/4″ NPT air connections
Available in air-to-air (double acting) and air-to-spring (single acting, or spring return failsafe) models
Position indication through visible indicator knob and flats on actuator shaft
Output shaft constructed of cataphoresis coated steel