Kromschroder Gas solenoid valve VAN120R/NW 88012135

The Kromschroder VAN120R/NW is a normally open gas solenoid relief valve with a nominal diameter of 20 mm and Rp 3/4 connection thread. It operates at a supply voltage of 230 V and handles a maximum inlet pressure of 500 mbar. This valve is designed for automatic pressure relief and tightness control in gas valve systems, compatible with natural gas, LPG, biogas, and air. It is certified to CE, FM, and CSA standards and originates from Germany. The coil is replaceable separately, and the valve features fast response time.

When selecting a replacement gas valve of this type, verify the connection size (e.g., Rp 3/4) and thread type, supply voltage (e.g., 230 V), and maximum inlet pressure to match the existing system. Ensure the valve function (normally open or closed) aligns with the application, and check if the coil is replaceable separately for easier maintenance. Measure the physical dimensions and confirm compatibility with the burner control and gas pressure switch.

Common failure modes for gas solenoid valves include coil burnout, leaking seat, or seized servo regulator. Symptoms may include failure to open or close properly, gas pressure fluctuations, or inability to maintain tightness during testing. Check the coil resistance and voltage supply, inspect the valve seat for debris or wear, and verify the diaphragm and seals for damage.