Schneider Electric MK-6611 Pneumatic Valve Actuator 50 Sq In 5-10 PSI

The Schneider Electric (Barber Colman) MK-6611 is a pneumatic valve actuator featuring a 50 square inch diaphragm with a spring range of 5-10 PSI. This proportional control, spring return actuator is designed for demanding HVAC and industrial control applications requiring precise valve modulation.

Key Specifications:

• 50 square inch diaphragm effective area for reliable force generation
• Spring range: 5-10 PSI operating pressure
• 1/2 inch stroke for precise valve control
• Linear movement with spring return operation
• 1/8 inch NPT air connection for pneumatic supply

Compatible Applications:

• For use with 1.5-2 inch VB7xxx, 2.5-4 inch VB9xxx, and 4-6 inch VB9323 valves
• Ideal for two-way and three-way control valve applications
• Suitable for heating, cooling, and process control systems

The MK-6611 is part of Schneider Electric's proven MK-6600 series of pneumatic actuators, formerly manufactured under the Barber Colman brand. This actuator provides dependable proportional control for medium to large valve sizes in commercial and industrial HVAC installations.