Kromschroder Gas solenoid valve VAS2-/40R/NW 88000095

The Kromschroder VAS2-/40R/NW gas solenoid valve (SKU 88000095) is a normally closed valve with a 230 V AC coil, featuring RP internal thread connections and a DN 40 (1 1/2'') outlet. It includes flow adjustment, a blue LED indicator, and a rectifier with voltage limiter for coil operation. The valve is equipped with M20 cable gland electrical connection and comes with 2 screw plugs on each side. It is designed for use in gas safety and control systems, providing automatic shut-off and regulation for gas and air supply in burners and other gas-consuming equipment.

When selecting a replacement valve of this type, ensure the coil voltage, thread type and size, and electrical connection match the existing system. Verify the valve's normally closed operation and flow adjustment features are compatible with the application. Check the inlet and outlet pipe diameters and thread standards (e.g., RP internal thread) to ensure proper fit. Also confirm the presence of required accessories like screw plugs and cable glands.

Common failure modes for such valves include coil burnout, leading to the valve not opening when energized, or mechanical sticking causing incomplete closure. Symptoms may include the burner failing to ignite, gas flow continuing after shutdown, or the blue LED not illuminating. Check the coil resistance and voltage supply, and inspect the valve for debris or damage to the seats and stem.