Kromschroeder VAH350R/NWAE (88020267) Durchflussregler

Gas flow regulator with solenoid valve Kromschroder VAH 350R/NWAE — precise proportional combustion control for large industrial systems Kromschroder VAH350R/NWAE is a flow rate regulator with an integrated Class A solenoid valve (EN 88 and EN 161). Designed to maintain a constant gas/air ratio by proportionally regulating gas flow depending on air flow in modulating and step-controlled gas burners. Main advantages: Proportional flow regulation — gas flow automatically follows air flow, ensuring stable ratio and optimal combustion over the entire power range. Shut-off valve function — simultaneously acts as a fast-acting solenoid valve (quick open/close). High safety — Class A per EN 161, maximum inlet pressure 500 mbar. Size DN 50 (2") — Rp internal thread, size 3 series. Ideal for medium and large industrial systems. Premium quality — original Kromschroder (Honeywell). Full European certification (EC, FM, CSA). Works with natural gas, LPG, biogas and air. Technical features: Pressure range: 0–500 mbar Protection class IP65 Valve position indicator Pressure test points Voltage: 230 V AC (standard) Operating temperature: -20…+60 °C Applications: Modulating large industrial gas burners Medium and high capacity boiler plants Drying chambers, furnaces, heat treatment lines Systems with variable thermal load Retrofitting and replacement in existing gas systems Kromschroder VAH350R/NWAE ensures ideal stoichiometric combustion, maximum energy efficiency, significant gas savings and minimal emissions.