Kromschroder Gas solenoid valve VG40/32R02NT31D 85208030

This gas solenoid valve from Kromschroder is used for safe control of gas burners, providing shut-off of gas flow. It operates at 220 V and has a connection thread of Rp 1 1/2, with maximum inlet and operating pressure of 200 mbar. The body is made of AlSi, with a Perbunan seal and stainless steel mesh filter at the inlet. It features automatic closure on power loss, a spring-loaded shut-off plate, adjustable flow, and a PG11 cable gland. The valve has IP54 ingress protection, an ambient temperature range of -20 to 60 °C, and is CE certified for high-load use.

Parts of this type are selected by matching the brand and series, connection size, coil voltage (typically 230 V or 24 V AC/DC), and the required function—single solenoid, double solenoid, slow-opening, or multiblock with filter and regulator. Before ordering, compare the connection thread and maximum operating pressure with the existing valve. Installation is possible in any position except upside down; the solenoid coil orientation may vary from vertical upward to horizontal. Ensure the valve is wired to the correct voltage and that the gas pressure switch confirms safe supply pressure before opening.

Typical failures include coil burnout, which prevents the valve from opening; a leaking valve seat, causing gas to pass when the valve should be closed; drifting outlet pressure; or a seized servo regulator. A coil burnout is often indicated by no operation and a burnt smell; check coil resistance. A leaking seat may allow gas flow even without power—use leak detection. In such cases, the coil can often be replaced separately, reusing the valve body.