Kromschroder Gas pressure switch DG10UG-3 84447320

The Kromschroder DG10UG-3 is a diaphragm pressure switch designed to monitor gas or air pressure, switching with rising pressure. It has an adjusting range of 1–10 mbar and features a glass fibre reinforced PBT plastic housing with an AlSi 12 lower section. The sensing element is an NBR diaphragm, and the switch is silicone-free with low gas release. It is rated IP54, has a safety class of 1, and complies with EN 1854:2010 and EN 13611:2015+AC:2016. The connection thread is M16 x 1.5, and it uses screw terminals for electrical connection.

When selecting a pressure switch of this type, verify the pressure range, connection thread size, and electrical ratings match the application. Ensure the switch is suitable for the gas type and that the enclosure rating meets the installation environment. Mounting must allow proper access for adjustment and wiring, and the switch should be installed in a location where it can sense the intended pressure without vibration or excessive temperature.

Common failures include diaphragm rupture or leakage, leading to loss of pressure sensing or false switching. Electrical contact issues may cause intermittent operation or failure to switch. Check for physical damage, contamination, or corrosion on terminals, and verify the diaphragm integrity by testing pressure response.