The DUNGS GAO (Automatic Reset), GMH (High Manual Reset), and GML (Low Manual
Reset) A2 pressure switches are compact pressure switches for DUNGS modular valve train
components. A2 pressure switches are suitable for making and/or breaking a circuit when the
medium pressure changes relative to the set point. The set point can be set in the field by an
adjustable dial with an integrated scale.
The DUNGS GAO, GMH, and GML A2 pressure switches are recommended for industrial
and commercial heating applications with DUNGS DMV dual modular valves and DUNGS
FRI modular pressure regulators. The GAO, GMH, and GML A2 pressure switches are
suitable for natural gas, propane, butane, air and other inert gases.