Kromschroder Gas solenoid valve VAS350R/NQ 88034238

The Kromschroder VAS350R/NQ is a gas solenoid valve with a nominal diameter of 50 mm and Rp internal thread connections. It operates on 120 V AC supply voltage at 50–60 Hz and is normally closed, closing automatically within 1 second when voltage is removed. The valve features a double valve seat, a built-in mesh filter at the inlet, and a blue LED indicator. It is EU certified and functions as an automatic shut-off and regulating device for gas and air.

Parts of this type are selected by matching the nominal diameter, connection thread, and supply voltage to the existing system. The valve can be installed on pipelines ranging from DN 10 to DN 65, with flanged connections available for DN 40 and DN 50. Ensure the pipeline diameter and thread type (Rp internal) align with the valve's specifications before ordering.

Common failures include the valve not opening or closing properly, often due to coil burnout or debris clogging the mesh filter. When the valve fails, the burner may not ignite or may shut down unexpectedly. Check the supply voltage, coil continuity, and filter cleanliness to diagnose issues.