Kromschroder Gas solenoid valve VAS1-/NW 88000001

The Kromschroder VAS1-/NW (SKU 88000001) is a gas solenoid valve with a double valve seat, designed for safeguarding and controlling air and gas supply in gas burners and appliances. It operates at 230 V AC, with a maximum pressure of 0.5 bar, and features a threaded flange connection suitable for pipe sizes from DN10 to 65. The valve is EU certified and meets safety standards SIL 3 and PL e, with a closing time of 1 second. It includes a blue LED indicator that lights up when energized and goes out when de-energized, and is equipped with flow adjustment and two screw plugs on each side.

When selecting a replacement valve of this type, ensure the coil voltage, connection type, and flange size match the existing installation. The valve is available with threaded flange connections for pipe sizes from DN10 to 65, and flanged connections for larger sizes. Verify the maximum operating pressure does not exceed the system's requirements, and confirm the electrical connection (e.g., M20 cable gland) is compatible. Always check the safety certifications and standards (SIL, PL) to meet the application's requirements.

Common failures for this type of valve include coil burnout, which may cause the valve to remain closed or fail to open, and debris accumulation on the valve seats, leading to leakage or incomplete closure. If the blue LED does not light up when power is applied, the coil may be faulty. If the valve does not close within the specified time, check for mechanical obstructions or spring wear. Regular inspection of the strainer and electrical connections is recommended.