Kromschroder Solenoid gas valve VAS250R/NW 88000025

The Kromschroder Solenoid gas valve VAS250R/NW (SKU 88000025) is a safety and control device for gas and air supply in burners and gas-consuming equipment. It operates on 230 V AC and features an Rp internal thread for connection. The valve includes flow adjustment, a closing spring, and a blue LED indicator that lights when energized and goes out when de-energized. It closes within 1 second and is supplied with two screw plugs on each side. The nominal diameter range is 10–65 mm, with electrical connection via an M20 cable gland.

Parts of this type are selected by matching the coil voltage, thread type, and nominal diameter to the existing valve. The valve must be installed with the correct orientation and electrical connection, ensuring the cable gland and screw plugs are properly fitted. Before ordering, verify the thread type (e.g., Rp internal) and the required flow adjustment capability.

Common failures include coil burnout, which prevents the valve from opening, and sticking due to debris or spring fatigue, causing slow or incomplete closure. The blue LED may not light if the coil is faulty, or may stay lit if the valve fails to close. Check the coil resistance and the closing spring for proper operation.