Pneumatic actuators provide proportional control of dampers in HVAC systems.
Used to control the damper on unit ventilators. Can be adapted to various unit ventilator control cycles. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell unit ventilator damper actuators.
MP909D is used for pneumatic proportional control of variable volume terminal units and small dampers. Available in various operating ranges, for either individual or sequence operation with other actuators. Compatible with all competitors products.
Proportional control actuators for var. vol. terminal units, mixing boxes, and small to mid sized dampers. Available in various operating ranges for independent or sequence operation. Positive Positioner Option available
Gives proportional control of variable volume dampers in small high velocity mixing boxes. Replacement devices are available for Johnson and Robertshaw models. Use for direct replacement only, do not replace larger damper actuators with this unit.
Used for proportional control of medium- to large-size dampers in HVAC systems. The MP918A,B are rolling diaphragm, piston-type actuators. Positive Positioner available. Replacement devices for most competitors products
Provides proportional control of large dampers in HVAC systems or inlet vanes on a VAV fan. Positive positioner available separately. Replacement devices are available for Robertshaw actuator models.
