
Bray Commercial VAMS24-70 Actuator
The Bray VAMS24-70 is a high-torque 24V spring return modulating actuator designed for precise flow control in commercial HVACR systems. Delivering 70 lb-in (8 Nm) of torque, this synchronous motor-driven unit provides consistent timing and failsafe performance for damper and valve applications. It accepts a 2-10 VDC or 4-20 mA control signal, allowing for seamless integration with Building Automation Systems (BAS). The rugged housing is designed for longevity in mechanical rooms, featuring selectable direction of rotation and a manual override for simplified commissioning. Engineered for high-duty cycle environments, the VAMS24-70 ensures accurate positioning and reliable fail-safe positioning during power loss. This actuator is an ideal replacement for underperforming proportional damper actuators, offering the durability required for critical air handling and terminal unit operations. Contractors can rely on its field-reversible mounting and auxiliary switch options to meet complex sequence-of-operation requirements without troubleshooting drift or calibration issues common in lesser components.
Key Benefits- Precise Modulating Control: Supports 2-10 VDC or 4-20 mA signals for exact positioning and energy efficiency.
- Reliable Spring Return: Mechanical fail-safe operation ensures the system returns to a known state during power interruptions.
- High Torque Output: Provides 70 lb-in of force, capable of driving medium-sized dampers and various valve assemblies.
- Ease of Installation: Features a universal shaft clamp and compact footprint for quick retrofits in tight mechanical spaces.
- Synchro-Motor Technology: Eliminates hunting and ensures consistent run times regardless of load fluctuations.
How do I change the fail direction on the VAMS24-70?
The fail direction (Clockwise or Counter-Clockwise) is determined by the orientation of the actuator on the shaft. Flipping the unit over changes the spring return fail-safe position.
Can this actuator be used with a 4-20 mA signal?
Yes, the Bray VAMS24-70 is compatible with 4-20 mA inputs, typically requiring a 500-ohm resistor if the controller does not provide a direct voltage output.
Does this unit include auxiliary switches?
Standard VAMS24-70 models are typically non-switch units, but they are compatible with Bray’s add-on switch kits for position feedback to the DDC controller.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Bray Commercial VAMS24-70 Actuator
The Bray VAMS24-70 is a high-torque 24V spring return modulating actuator designed for precise flow control in commercial HVACR systems. Delivering 70 lb-in (8 Nm) of torque, this synchronous motor-driven unit provides consistent timing and failsafe performance for damper and valve applications. It accepts a 2-10 VDC or 4-20 mA control signal, allowing for seamless integration with Building Automation Systems (BAS). The rugged housing is designed for longevity in mechanical rooms, featuring selectable direction of rotation and a manual override for simplified commissioning. Engineered for high-duty cycle environments, the VAMS24-70 ensures accurate positioning and reliable fail-safe positioning during power loss. This actuator is an ideal replacement for underperforming proportional damper actuators, offering the durability required for critical air handling and terminal unit operations. Contractors can rely on its field-reversible mounting and auxiliary switch options to meet complex sequence-of-operation requirements without troubleshooting drift or calibration issues common in lesser components.
Key Benefits- Precise Modulating Control: Supports 2-10 VDC or 4-20 mA signals for exact positioning and energy efficiency.
- Reliable Spring Return: Mechanical fail-safe operation ensures the system returns to a known state during power interruptions.
- High Torque Output: Provides 70 lb-in of force, capable of driving medium-sized dampers and various valve assemblies.
- Ease of Installation: Features a universal shaft clamp and compact footprint for quick retrofits in tight mechanical spaces.
- Synchro-Motor Technology: Eliminates hunting and ensures consistent run times regardless of load fluctuations.
How do I change the fail direction on the VAMS24-70?
The fail direction (Clockwise or Counter-Clockwise) is determined by the orientation of the actuator on the shaft. Flipping the unit over changes the spring return fail-safe position.
Can this actuator be used with a 4-20 mA signal?
Yes, the Bray VAMS24-70 is compatible with 4-20 mA inputs, typically requiring a 500-ohm resistor if the controller does not provide a direct voltage output.
Does this unit include auxiliary switches?
Standard VAMS24-70 models are typically non-switch units, but they are compatible with Bray’s add-on switch kits for position feedback to the DDC controller.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Bray VAMS24-70 is a high-torque 24V spring return modulating actuator designed for precise flow control in commercial HVACR systems. Delivering 70 lb-in (8 Nm) of torque, this synchronous motor-driven unit provides consistent timing and failsafe performance for damper and valve applications. It accepts a 2-10 VDC or 4-20 mA control signal, allowing for seamless integration with Building Automation Systems (BAS). The rugged housing is designed for longevity in mechanical rooms, featuring selectable direction of rotation and a manual override for simplified commissioning. Engineered for high-duty cycle environments, the VAMS24-70 ensures accurate positioning and reliable fail-safe positioning during power loss. This actuator is an ideal replacement for underperforming proportional damper actuators, offering the durability required for critical air handling and terminal unit operations. Contractors can rely on its field-reversible mounting and auxiliary switch options to meet complex sequence-of-operation requirements without troubleshooting drift or calibration issues common in lesser components.
Key Benefits- Precise Modulating Control: Supports 2-10 VDC or 4-20 mA signals for exact positioning and energy efficiency.
- Reliable Spring Return: Mechanical fail-safe operation ensures the system returns to a known state during power interruptions.
- High Torque Output: Provides 70 lb-in of force, capable of driving medium-sized dampers and various valve assemblies.
- Ease of Installation: Features a universal shaft clamp and compact footprint for quick retrofits in tight mechanical spaces.
- Synchro-Motor Technology: Eliminates hunting and ensures consistent run times regardless of load fluctuations.
How do I change the fail direction on the VAMS24-70?
The fail direction (Clockwise or Counter-Clockwise) is determined by the orientation of the actuator on the shaft. Flipping the unit over changes the spring return fail-safe position.
Can this actuator be used with a 4-20 mA signal?
Yes, the Bray VAMS24-70 is compatible with 4-20 mA inputs, typically requiring a 500-ohm resistor if the controller does not provide a direct voltage output.
Does this unit include auxiliary switches?
Standard VAMS24-70 models are typically non-switch units, but they are compatible with Bray’s add-on switch kits for position feedback to the DDC controller.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












