Working principle of asco solenoid valve G551 series

Asca Asco solenoid valveThere are three types of work systems: long-term work system, repeated short-term work system, and short-term work system. Our company's regular products are designed for long-term operation, which means that the coils are allowed to work on electricity for a long time. For situations where the valve is open for a long time but only closed for a short time, it is advisable to use a normally open solenoid valve. When used for short-term work and in large quantities, special orders can be made to reduce power consumption. When the electromagnetic coil is powered on, a magnetic field is instantly generated. Under the action of electromagnetic force, the moving iron core is attracted and the auxiliary valve is opened. At this time, the main valve core moves upward to achieve the purpose of opening the main valve for medium circulation. When the solenoid coil is powered off, the magnetic field disappears, and the moving iron core resets under the action of spring force, closing the auxiliary valve. At this time, the medium enters the upper chamber of the main valve core from the balance hole. The Asca asco solenoid valve increases the pressure in the upper chamber, and under the dual action of spring force and pressure difference, the main valve core resets, closing the main valve and interrupting the flow of medium. The direct acting structure is a balanced direct acting structure that utilizes the principle of automatic pressure balancing and the combined action of electromagnetic valve force on the valve core. The moving iron core and valve core are integrated structures.

Asca Asco solenoid valveWhen the coil is energized, the moving iron core is driven upward by electromagnetic force and directly interacts with the fixed iron core, causing the valve port to instantly open and the medium to pass through. When the coil loses power, the magnetic force disappears, and the moving valve core falls under the action of the spring force and closes the valve port, causing the medium to cut off. Especially suitable for use in places where the medium needs to be emptied or where high and low pressure coexist. The solenoid valves are combined together. The widely used fuel dispensers have a measuring accuracy of up to 0.02% for oil, and all use dual solenoid valves. The large valve opens, allowing refueling to be completed in a relatively short amount of time; Then the large valve is closed and supplemented by the small valve to ensure flow accuracy. The Asca ASCO solenoid valve also comes with a manual device, which allows for long-term valve closure without consuming electricity. The three position solenoid valve can be regarded as a more compact dual solenoid valve, which conveniently achieves three position adjustment and has been widely used.

Asca Asco solenoid valveIt is achieved by applying electromagnetic force to the iron core sealed inside the magnetic isolation sleeve. It utilizes the principle of automatic pressure balance and the combined action of electromagnetic valve force on the valve core, which is pressed against the valve seat of the solenoid valve. At this time, the solenoid valve maintains a sealed state. After the solenoid valve is powered on, the solenoid head will generate magnetic force to lift the valve stem. At this time, the valve core will be lifted and separated from the valve seat, thereby controlling the flow of the medium. Pilot operated solenoid valves may also encounter some common malfunctions during user use, such as inability to start and operate. The upper pin hole of the valve core is worn, and there are obvious grooves formed by grinding and pressing on the inner side of the pin hole. The microstructure of the Asca ASCO solenoid valve shows features such as abrasive particles and short scratches, and the edge of the wear mark is in the form of metal debris flattened by compression. At the contact point between the bottom of the valve core cavity and the adjusting screw, there are obvious wear marks, and a circular pit is formed in the middle position. The microscopic morphology shows micro characteristics such as peeling and corrosion micropores.