Pressure switches for air DL can be used as positive pressure switches, vacuum sensors, or differential pressure switches for air, flue gas, and other non-aggressive gases. Ideal for laboratories, industrial firing systems, butterfly valves for air, and fire dampers.

The switching pressure is adjusted against a spring force using a hand wheel.

This switch has a 1/8" hole drilled out on the housing so that it can optionally be used as a vacuum connection.