Directional valve performance requirements and classification (1) Performance requirements The role of the directional valve is to change the direction of oil flow, turn on or off the oil, in order to control the start and stop the implementation of components and commutation. Therefore, its performance requirements are: when the oil circuit is turned on, the pressure loss should be small; oil cut off, the leakage should be small; spool displacement, the control force should be small. (2) Classification The purpose of the reversing valve is very wide and the type is also varied. It can be classified according to the structure of the reversing valve, the operation mode, the position and the number of passages. According to the number of working positions of the valve body in the valve body, there are two valves and three valves. According to the number of main oil ports on the valve body, there are two-way valves, three-way valves and four-way valves; There are manual valves, motorized valves, solenoid valves, hydraulic valves, etc .; according to the valve body movement relative to the body points, there are two types of rotary valve and slide valve. Read related articles hydraulic mechanism to reduce the impact of hydraulic shock method of hazardous liquids flow through the gap and constant ideal liquid flow cavitation and harm Author: Shengzhou Wei Delong Pumps XHB rotary piston pump, XHB rotor pump Widely used in oil depots, oil, unloading, cleaning the ideal pump, but also sewage treatment, filter press dedicated pump. Copyright: Reprinted "valve performance requirements and classification" article must be linked to indicate the author and the original source and the statement, if you have any questions about this article, please submit to the author, will be the first time.
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