Pressure switch Dongs GW 3 A5
The Dungs GW 3 A5 is a mechanical pressure switch designed for monitoring and controlling gas pressure in industrial and heating systems. This model typically operates within a low-pressure range of 1.5 to 15 mbar, making it ideal for applications such as gas burners, condensing boilers, and combustion control systems. It features a durable housing made of polymer or metal with IP40 protection rating , and is equipped with a microswitch that offers both normally open NO and normally closed NC contacts for integration into control circuits. The switch ensures stable performance across an ambient temperature range of -20°C to +60°C, and it complies with European gas safety standards.
Manufactured by the German company Dungs, the GW 3 A5 operates on a differential pressure principle. It includes an adjustable screw for setting pressure cut-in and cut-out points, and functions mechanically without the need for an external power supply. Its compact design and easy installation make it ideal for both residential and industrial gas supply systems. The switch is capable of withstanding pressure fluctuations and harsh environmental conditions, and is approved according to **EN 161** and EN 1643 safety standards for gas-fired equipment.
