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.
Resources:
Data Sheet
- Data sheet – Series 79 Pneumatic Actuator
- Data sheet – Series 79 Pneumatic Actuator on Type-21 Ball Valve
- Data sheet – Series 79 Pneumatic Actuator on Type-23 Multiport™ Ball Valve
- Data sheet – Series 79 Pneumatic Actuator on Type-57 Butterfly Valve
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
- 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