Kromschroder Gas pressure switch DG60VC5-5W 84444625

The Kromschroder DG60VC5-5W gas pressure switch (SKU 84444625) is a diaphragm-type pressure switch designed for monitoring air or flue gas pressure in burner and boiler systems. It has an adjustable pressure range of 0.2–3.3 mbar and features a tempered LSR diaphragm system. The housing is made of glass fibre reinforced PBT plastic with low gas release, and it includes a tube connection and hand wheel. Electrical connection is via screw terminals, and the micro switch complies with EN 61058-1. The switch is protection class II, weighs 150 g, and has a designed lifetime of 10 years. It meets standards EN 13611:2015+AC:2016 and EN 1854:2010, with type designation CE-0085AP0466.

When selecting a replacement pressure switch of this type, verify the required pressure range, medium compatibility (air or flue gas), and electrical connection method. Ensure the switch's set point range covers the system's operating pressure. Mounting must accommodate the tube connection and hand wheel; check the physical dimensions and thread type. The electrical connection uses screw terminals, so confirm voltage and current ratings match the circuit. Also, consider the protection class and ambient temperature limits for the installation environment.

Common failure modes for diaphragm pressure switches include diaphragm rupture or leakage, leading to loss of pressure sensing or false triggering. Symptoms may include burner lockout, erratic operation, or failure to detect pressure changes. Check for visible damage to the housing or diaphragm, and verify the switch's set point with a manometer. Also, inspect the electrical contacts for wear or corrosion, which can cause intermittent signals.