Kromschroder Gas solenoid valve VG8R03T6G 85231710

The Kromschroder VG8R03T6G is a gas solenoid shut-off valve with a nominal diameter of DN 8 and a connection thread of Rp 1/4. It operates at a supply voltage of 230 V AC with a frequency of 50–60 Hz, and is designed for a maximum inlet pressure of 360–500 mbar. The valve is normally closed, features fast opening and closing, and is intended for automatic gas shut-off in pilot lines and small systems. It is manufactured in Germany and is an original part, with a replaceable coil.

When selecting a replacement gas solenoid valve of this type, ensure that the connection size (e.g., DN 8, Rp 1/4), supply voltage (e.g., 230 V), and frequency match the original. Verify the maximum inlet pressure rating and the valve's function (normally closed, fast opening/closing) to suit the burner control requirements. The valve may have threaded or tube connections; measure the existing connection and compare with the replacement. Also confirm that the coil is replaceable if servicing is needed.

Common failure modes for gas solenoid valves include coil burnout, leaking valve seat, and seized servo regulator. Symptoms may include the burner failing to ignite, gas flow continuing when the valve should be closed, or erratic pressure regulation. Check the coil for continuity and resistance, inspect the valve seat for debris or wear, and verify that the valve opens and closes promptly when power is applied and removed.