Kromschroeder VAV350R/NWAK (88005516) gas solenoid valve

Variable air/gas ratio controller with solenoid valve Kromschroder VAV 350R/NWAK — flexible and precise combustion control for powerful modulating burners. Kromschroder VAV350R/NWAK is a variable air/gas ratio controller with integrated solenoid valve class A (EN 88 and EN 161). Designed for proportional gas supply regulation depending on air flow in modulating gas burners of medium and high power. Main advantages: Variable air/gas ratio — adjustable in the range 0.6:1 to 3:1. Allows precise adaptation of the combustion process to specific burner requirements and operating modes. Precise proportional control — gas flow automatically follows air flow, ensuring stable and efficient combustion over the entire modulation range. Shut-off valve function — simultaneously acts as a fast-acting solenoid valve. High safety — class A, maximum inlet pressure 500 mbar. Size DN 50 (2") — Rp internal thread. Optimal for medium and high power systems. Premium quality — original Kromschroder (Honeywell). Full European certification. Technical features: Pressure range: 0–500 mbar Ratio and zero point adjustment on both sides Protection class IP65 Position indicator, pressure test points Voltage: 230 V AC (standard) Operating temperature: -20…+60 °C Application: Modulating industrial gas burners Large boiler houses and heat generating equipment Drying chambers, furnaces, heat treatment lines Systems with variable thermal load and complex combustion conditions Modernization of existing gas installations Kromschroder VAV350R/NWAK provides maximum adjustment flexibility, high energy efficiency, economy.