ASCO 551 series 2-position 5-way solenoid valve product selection points 1. The main control parameters of the solenoid valve are the diameter, design nominal pressure, medium allowable temperature range, interface size and so on. 2. The solenoid valve is used to push the valve to open and close. It is usually used in two-position control with a diameter of less than 40mm, especially for connecting, cutting or switching the gas path and liquid path. 3. The sealing performance of the valve is one of the main indicators for evaluating the quality of the valve. The sealing performance of the valve mainly includes two aspects, namely internal leakage and external leakage. The internal leakage refers to the degree of sealing of the medium between the valve seat and the closing member. External leakage refers to the leakage of the valve stem packing part, the leakage of the middle port gasket and the leakage of the valve body due to casting defects. External leakage is not allowed. 4. The main advantages of the solenoid valve are small size, reliable operation, convenient maintenance and low price. When selecting, you need to pay attention to the choice of normally open or normally closed according to the process requirements.

The working principle of ASCO 551 series 2-position 5-way solenoid valve has a closed cavity in the solenoid valve. There are through holes in different positions. Each hole leads to different oil pipes. The middle of the cavity is a valve, and the two sides are two electromagnetic parts. Iron, which side of the magnet coil energized the valve body will be attracted to which side, by controlling the movement of the valve body to block or leak different oil drain holes, and the oil inlet hole is normally open, the hydraulic oil will enter Different oil drain pipes are then used to push the piston of the oil just by the pressure of the oil, which in turn drives the piston rod, which drives the mechanical device. This controls the mechanical motion by controlling the current of the electromagnet. Throughout the domestic and foreign solenoid valves, so far, from the action mode can be divided into three categories: direct-acting, recoil-type, pilot-type, and from the valve structure and material differences and the principle of the difference The punching type can be further divided into: diaphragm type recoil solenoid valve and piston type recoil solenoid valve; the pilot type can be further divided into: pilot type diaphragm solenoid valve and pilot type piston solenoid valve; from the valve seat and sealing material Can be divided into: soft sealed solenoid valve, steel sealed solenoid valve, semi-steel sealed solenoid valve.