HVAC Valve Actuators

HVAC Damper Actuators

An HVAC damper actuator is an electric rotary drive that turns the shaft of an air damper in ventilation ducts to open, close or set it to an intermediate position.

It is used on air handling units, VAV boxes, fresh air and exhaust dampers and smoke control applications. The product range includes standard, VAV type and spring return actuators.

5 productsproduct range

24 Vsupply (depending on model)

Spring returnsafety option

VAVvariable air volume type

Buy Now Request a Quote

Main Applications

AHU fresh air dampers
Exhaust and mixing dampers
VAV boxes
Zone ventilation control
Frost-protected air intakes
Building automation damper control

Technical Data

Type	Rotary damper actuator
Supply	AC 24 V or AC 230 V (depending on model)
Control	On-off, 3-point or 0–10 V (depending on model)
Torque	Depending on model (e.g. 5 Nm on one model)
Spring return	Yes / no (depending on model)
VAV	Type with flow controller (depending on model)
Mounting	Directly on the damper shaft
Protection class	Depending on model

Material Options

Part	Standard damper actuator	Spring return	VAV actuator
On power failure	Stays in position	Closes / opens by spring	Depending on model
Control	On-off / modulating	On-off / modulating	Flow control
Typical use	General dampers	Frost protection, smoke control	Variable flow zones
Torque	Depending on model	Depending on model	Depending on model

Which material? Required torque for the damper area, control signal and the position wanted on power failure decide the damper actuator choice. Torque and supply values are confirmed per model.

Advantages

Direct Mounting

Fits the damper shaft

Safety Option

Spring return

Modulating Control

Intermediate positions

Automation-Ready

Works with controllers

Construction and Design Features

Motor and gearbox
Shaft adaptor
Position indicator
Manual release button (depending on model)

Send the damper area or required torque, control type and quantity; we will confirm a suitable damper actuator from stock.

How to Choose?

Determine the torqueCalculate the torque needed for the damper area.
Choose the control typeOn-off, 3-point or 0–10 V.
Safety positionChoose spring return if a position is needed on power failure.
SupplyDecide on a 24 V or 230 V model.

Complementary Products

Electric Actuators Pneumatic Actuators Temperature Measurement and Control Equipment Proportional Control Valves Thermostatic Control Valves Circulation Pumps

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.

Technical ConsultancyTechnical support on damper actuator torque and control selection.

Delivery from StockDamper actuators are shipped from stock.

Compatibility CheckCompatibility with Electric Actuators is checked for actuator control.

In This Group

Other HVAC Valve Actuators

Linear Valve Actuators

Linear valve actuators drive the stem of globe control valves with linear movement to control flow in on-off or modulating mode.

Details →

Rotary Valve Actuators

Rotary valve actuators open, close or modulate ball and butterfly type HVAC valves with rotary movement.