Kromschroder Gas solenoid valve VAS1-/10R/NWSR 88013937

The Kromschroder VAS1-/10R/NWSR gas solenoid valve (SKU 88013937) is a safety and control valve for gas burners and appliances. It has a nominal diameter of 10 mm with Rp 3/8 internal thread connection. The valve operates on 230 V AC, 50–60 Hz, and is EU certified to EN 13611 and EN 161. It achieves performance level PL e and safety integrity level SIL 3. Electrical connection is via an M20 cable gland, and it includes two screw plugs on each side. The valve is suitable for pipe diameters from DN10 to 65, with flanged connections available for DN 40 and DN 50.

When selecting a gas solenoid valve of this type, verify the nominal diameter and connection thread (e.g., Rp or NPT) match the existing piping. Ensure the supply voltage and frequency are compatible with the system. Check the valve size and whether flanged or threaded connections are required for the pipeline diameter. Confirm the electrical connection type and any auxiliary devices needed for installation.

Common failures include coil burnout, leading to the valve not opening or closing properly, which may cause burner ignition failure or gas flow interruption. Diaphragm or seal wear can result in leaks, detectable by gas odor or pressure drops. Electrical connection issues may cause intermittent operation. Check for continuity in the coil, inspect seals for damage, and verify proper voltage supply.