Kromschroder Gas pressure switch DG50U-6T 84447353

The Kromschroder DG50U-6T is a diaphragm pressure switch with a pressure range of 2.5–50 mbar. It operates on a mechanical principle and features a glass fibre reinforced PBT plastic body with a lower housing of AlSi 12. The sensing element is an NBR diaphragm, and the switch is silicone-free with low gas release. It has a 4-pin plug with socket for electrical connection, screw terminals, and a connection thread of M16 x 1.5. The switch is designed for rising pressure and is safety class 1, with a supply voltage of 220–240 V.

When selecting a pressure switch of this type, ensure the pressure range, connection thread, and electrical specifications match the system requirements. The switch must be compatible with the medium and ambient conditions. Installation involves connecting the pressure line to the appropriate port and wiring the electrical connections according to the schematic. After installation, a leak check is required to ensure proper sealing.

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. Symptoms on the equipment include burner lockout, erratic pressure readings, or failure to start. Regular functional checks and leak tests are recommended to detect issues early.