coffee machine solenoid valve

◆There are two types of solenoid valves: normally closed and normally open. The normally closed type is in a closed state when the power is off. When the coil is energized, an electromagnetic force is generated, causing the movable iron core to overcome the spring force and attract the static iron core to directly open the valve. When the coil is powered off, the electromagnetic force disappears, and the movable iron core is reset under the action of the spring force, directly closing the valve port, and the medium is blocked. ◆Simple structure, reliable action, normal operation under zero pressure difference and micro vacuum, normally open type is just the opposite, such as solenoid valve with smaller flow diameter.