The 5404 valve is a servo-assisted piston valve available in NC and NO variant. A minimum differential pressure is required for the valve switching function. The solenoid coils are moulded with high-quality epoxy resin. To reduce power consumption in operation, coils with "Kick and Drop" (KD) electronics assembly (double coil technology) are available. In combination with a plug to DIN EN 175301-803 Form A, the valves satisfy degree of protection IP65. The cable plug is not included and must be ordered separately.