Siemens Building Technology 243-0001 Pneumatic Switching Relay

Siemens 243-0001 Pneumatic Switching relay is small pneumatic switching pilot operated device to control the flow of air in a pneumatic system. It works well as a switch, by diverting airflow between two circuits in response to a pressure signal. This part is used often in HVAC systems for controlling more than one operation, It allows the relay easy integration into a variety of HVAC settings. device that controls the flow of air within a pneumatic system. Operated from 20°F to 120°F, pressures up to 25 PSI allow this fitting to be used in most HVAC situations. It is guaranteed that 1/8 NPT connection type is compatible with standard pneumatic fittings.