Dungs GW 150 A5 pressure switch.

The Dungs GW 150 A5 pressure switch, art. 272339, is used in industrial equipment with a working medium pressure not exceeding 500 mbar. It monitors the feed pressure and vacuum pressure. It operates stably and is easy to set up. It is a compact, gas-tight sensor that meets EN 1854 standards.

Working medium

The Dungs GW pressure switch is designed to control the pressure of air, flammable gases of group 1-3 according to EN 1854, and neutral gaseous media.

Design and installation

The switch is assembled in a housing with a cast aluminum base and a shock-resistant polyamide cover. The upper part is equipped with an adjustment wheel with digital markings for smooth adjustment of the operating parameters. The diaphragm is made of NBR rubber, which is abrasion-resistant. There is a ø 9 mm nozzle for pressure measurement. The contacts are made of Ag and are protected from external influences according to IP 54 standard. A 4-pin DIN connector is used for electrical connection.

The microswitch of the sensor-switch reacts to changes in pressure. It operates accurately at ambient temperatures of -15...+70 °C. The switch can be installed in any position. If the recommended orientation (vertical) is deviated from, the sensor will operate at a pressure higher or lower than the set value. Fixing screws (M4 x 20 mm) and a ring gasket Ø10.5x2.25 mm are used for mounting on the gas valve.

Advantages of the Dungs GW pressure switch:

• fail-safe switching;
• wide range of parameter settings;
• compact size, easy installation;
• wide range of applications;
• gas-tight, shock-resistant housing;
• dust and moisture protection class IP 54;
• stable switching at low and high temperatures.

Application

The Dungs GW 150 A5 pressure switch is integrated into the control systems of combustion equipment, air conditioning, and ventilation devices.