Honeywell Gas valve VK4125C1015U

The Honeywell Gas valve VK4125C1015U is a shut-off and control valve for gas supply systems, intended for use in gas burners, heating boilers, and industrial heat generators. It ensures safe gas supply and shut-off, compatible with Resideo (formerly Honeywell Home) equipment. This valve has compact dimensions of 160x150x90 mm and is supplied with original seals, meeting gas equipment safety standards. It is listed under SKU VK4125C1015U and is an OEM equivalent to VK4125C1015.

Parts of this type are selected by connection size (typically Rp 1/2" to 2" threaded or flanged), coil voltage (commonly 230 V or 24 V AC/DC), and functional type (single-solenoid, double-solenoid, or multiblock with integrated filter and regulator). Before ordering, verify compatibility with the specific burner or boiler model, gas type, and pressure range. Measure the mounting dimensions and compare the electrical connections to ensure a proper fit.

Common failure modes for such valves include coil burnout (often replaceable separately), leaking valve seat causing gas to pass when closed, drifting outlet pressure due to a worn regulator, or a seized servo mechanism. Symptoms on equipment include failure to ignite, unstable flame, or gas odor when the valve is supposed to be closed. Check the coil continuity, valve seat sealing, and regulator output pressure.