SchneiderMK-4611 Valve Actuator 5-10PSI 11Sq

The Schneider Electric (Barber Colman) MK-4611 is a pneumatically operated valve actuator designed for precise control of natural gas flow in HVAC equipment. It uses compressed air pressure (5-10 psi) to move an internal diaphragm, which in turn opens or closes a valve. The MK-4611 is made of aluminum for durability and weighs in at 2.4 pounds. It has a standard 1/8 inch NPT connection for easy installation into existing piping. The MK-4611 is commonly found in HVAC systems controlling the flow of natural gas to burners. A typical application would be in a furnace or boiler where the MK-4611 would receive a signal from a thermostat. Based on the temperature setting, the actuator would adjust the valve position to deliver the precise amount of gas needed to maintain a comfortable temperature. The MK-4611 offers several benefits for HVAC systems. First, it provides accurate control over gas flow, leading to more efficient heating and lower energy bills. Second, the pneumatic operation makes it reliable and durable even in harsh environments. Finally, the aluminum construction and wide temperature range (-20°F to 220°F) ensure compatibility with most heating systems.