At its core, a Direct Acting Solenoid Valve consists of a solenoid coil, a plunger, and a valve body. When electric current is applied to the solenoid coil, it generates a magnetic field that moves the plunger, which in turn opens or closes the valve. Unlike other types of valves that rely on pressure differences to operate, direct acting solenoid valves do not require a minimum pressure difference between the inlet and outlet ports to function. This feature makes them especially valuable in applications where low or fluctuating pressures are common.