the LRB24-SR actuator eliminates the need for limit switches by employing electronic stall protection

While versatile

Common Questions & Troubleshooting:

Four-Speed Control: Provides adjustable airflow taps to match existing system cooling and heating speed requirements

Schneider Electric (Barber Colman) MK-6621 Proportional Control Freon the LRB24-SR actuator eliminates theAs a veteran HVACR technician, you know that consistent performance in fluid control relies on the reliability of your actuators. The Schneider Electric MK 6621, formerly under the Barber Colman brand, is a heavy duty pneumatic valve actuator engineered for precise proportional control of 1 1 2" to 2" VB 7000 series globe valves. Built with a rugged die cast aluminum housing and a 50 square inch effective diaphragm area, this unit delivers the