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Actuators

331 Series Image
  • Variety of Spring Ranges for Sequencing with Other Control Devices
  • Replaceable Diaphragm
  • Forward Travel Stops
  • Positioning Relay
  • High Torque
Designed with 4-inch stoke the pneumatic actuator is a rugged metal fabricated device that provides gradual or positive actuation of HAVC and fire smoke dampers.
MP909 Series Image
Rugged ribbed aluminum body.
Low-friction shaft bearing.
Close tolerance on operating range and stroke.
Used for pneumatic proportional control of variable volume terminal units and small damper. Available in various operating ranges for either individual or sequence operation with other actuators.
Protected barb connector.
Versatile mounting
MP918 Series Image
Rolling diaphragm operated.
Low friction shaft bearing.
Close tolerance on operating range and stroke.
Used for proportional control of medium- to large-size dampers in HVAC systems. The MP918A,B are rolling diaphragm, piston-type actuators.
Versatile mounting and connecting hardware.
Non-overlapping spring ranges for sequencing.
90 degree stroke
4-20mA input for use with Delphi
CCW rotation
Herculine Actuators comes in 100,200, and 400 pounds in torque.
Modbus RTU RS485
Includes local keypad/display for programming
Constructed of strong zinc die castings.
Hesitation
Used to control the damper on unit ventilators. Can be adapted to various unit ventilator control cycles.
Compact in size.
Neoprene rolling diaphragm.
The MP913 Operator can be used with or without a crankarm.
Provides proportional control of variable volume dampers in small high velocity mixing boxes. Replacement devices are available for Johnson and Robertshaw devices.
Rolling diaphragm operated.
Fail safe on over pressure.
Actuator can be swivel mounted from either end to pipe, floor, or wall surface.
Provides proportional control of large dampers in HVAC systems. Replacement devices are available for Robertshaw actuator models.
Optional positive
Rolling diaphragm for long life and low hysteresis.
Easily attached to valve.
Can be installed after piping valve.
Pneumatic actuators provide proportional control of steam or hot or cold liquids in HVAC systems. Replacement devices are available for older Honeywell actuators.
Slide lock feature permits simple engagement to valve stem.
Direct- or reverse-action control.
The MP958 Pneumatic Valve Actuator is direct-acting and used only with Honeywell V5852A2xx, V5862A2xx, V5853A2xx, and V5863A2xx Terminal Unit Valves to control hot and/or chilled water.
332 Series Image
  • Ozone Resistant Rolling rubber Diaphragm
  • Pivot Mounting for Extended Shaft
  • Fixed Bracket Mounting
  • Direct Front Mounting
Designed with 2-3/8 inch stoke the pneumatic actuator is a rugged metal fabricated device that provides gradual or positive actuation of HAVC dampers.
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