The Barber Colman MK-6811 is a pneumatic actuator designed for precise modulation of dampers and valves in HVAC and industrial systems. Known for its smooth operation and responsive control, this actuator is ideal for applications requiring proportional positioning through a pneumatic control signal. Its rugged construction and dependable performance make it a solid choice for both new installations and retrofits.
Technical Specifications
-
Model: MK-6811
-
Type: Pneumatic Damper Actuator
-
Control Type: Proportional (Modulating)
-
Signal Range: Typically 3–15 psi (verify with system specs)
-
Motion Type: Linear
-
Spring Return: Model dependent (verify application)
-
Mounting: Direct mount to damper shaft or valve body (with linkage if needed)
-
Material: Heavy-duty industrial-grade housing
-
Condition: New
Key Features
-
Provides smooth, proportional control of dampers or valves
-
Compatible with standard pneumatic control systems
-
Built for long-lasting performance in HVAC and process environments
-
Easy to integrate into building automation systems
-
Ideal for air regulation, steam, hot water, or chilled water applications
Compatible Applications
-
Air handling unit dampers
-
Zone and terminal unit control
-
Industrial ventilation systems
-
Valve control in HVAC water or steam systems
-
Pneumatically modulated energy management systems
Installation & Maintenance Notes
-
Connect to a clean, dry pneumatic air supply
-
Mount securely with appropriate linkage or directly to compatible shaft
-
Verify pressure range and stroke compatibility with your system
-
Check actuator movement during commissioning
-
Periodically inspect tubing, seals, and linkage for wear or air leaks
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance