Schneider Electric (Barber Colman) AK-42309-500 Positioner Relay Adjustable Span 13 PSI MAX

The Schneider Electric (Barber Colman) AK-42309-500 Positioner Relay is a pneumatic controller that is used in HVAC systems to control actuators in dampers and valves. It has an adjustable span of 13 PSI and this makes it possible to set the pressure of the system to the most appropriate level. This relay improves the response accuracy and makes energy consumption more efficient for regulating the air flow and temperature inside the system. It is widely utilized in commercial and industrial processes to ensure the proper functioning of pneumatic actuators.