Herion 9504400 Solenoid Valve Double DIN 4MM 120V Coil

The Herion 9504400 Solenoid Valve features a 4MM bore and a 120V coil, and is designated as Double DIN in the product title. Solenoid valves use an electromagnetic coil to move a plunger, enabling fast, electrically actuated control of a flow path. This model, carrying the 9504400 designation from Herion, provides a compact option for systems that require precise on/off operation with a standard line voltage. The bore size of 4MM defines the internal passage through which fluid or gas would pass when the valve is open, influencing the valve’s flow characteristics, while the 120V coil defines the electrical drive required to actuate the valve. With its naming, the product emphasizes both its bore and voltage together with the mounting cue implied by Double DIN. In choosing a replacement or upgrade, buyers can rely on the combination of brand (Herion), model number (9504400), bore (4MM), and coil voltage (120V) to match this part to compatible assemblies in controlled environments.