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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.
WEBSITE: Pressure switch Dongs GW 3 A5 Iran
The Dungs GW 3 A5 pressure switch is a highly sensitive and precise device designed to control gas pressure in very low ranges, up to 3 mbar. It is widely used in safety applications and small-scale heating systems. This model operates using a diaphragm mechanism that responds to even the slightest pressure changes, making it ideal for systems requiring high sensitivity. The internal SPDT contact allows for direct control of electrical circuits, and the integrated mechanical adjustment screw enables precise setting of the switching point according to system requirements. Its robust housing ensures durability, while the compact design allows for easy installation in tight spaces. The GW 3 A5 fully complies with international safety standards and offers reliable performance even under harsh environmental conditions such as high humidity and temperature.
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