A few big performance of hydraulic press hydraulic solenoid valve

Hydraulic press hydraulic solenoid valve performance of several major network marketing BBS QDPWJ time hydraulic press hydraulic solenoid valve of several major performance electromagnetic directional valve key performance indicators, in addition to the work reliability, pressure loss and leakage, and the reversing and reset time, reversing frequency and service life. ( ) The reversing reliability. Reversing reliability is after the electromagnet electricity, under the effect of electromagnetic force, the valve can guarantee the reversing, and when the electromagnet after power, the valve can reliably under the action of a spring force reset. Solve the problem of the reversing reliability of electromagnetic directional valve, special attention should be paid to the product quality during the process of design and manufacture and use of oil in the process of purity. Should reasonably designing the valve structure, hello Mao Dou reduce effect of all kinds of commutating resistance on valve core, at the same time ensure that the valve body hole and the valve core and other parts of the machining accuracy, in order to improve the working reliability of electromagnetic directional valve. ( ) The pressure loss. The same as the manual directional control valve, electromagnetic directional valve pressure loss is also by the flow loss and valve port throttling loss of two ministerial. Just because of the small amount of electromagnetic directional valve opening, so the throttling loss is bigger. Relative to character, and working pressure difference before and after the valve. ( ) The reversing and reset time. General provisions from the electromagnet electricity to the reversing termination time for electromagnetic directional valve core commutation time. Power from the electromagnet to the valve core back to the initial position of electromagnetic directional valve reset time. ( ) The service life. Qingdao, the service life of steel structure of the electromagnetic directional valve is refers to the electromagnetic directional valve because of various reasons, cannot be normal commutation and reset action, or to its main performance index significantly worse and more than a specified value with the number of commutator. After long time use, the valve itself wear will increase some leakage, but practice has proved its little influence on the service life of the reversing valve 'mainly depends on the working life of the electromagnet. The service life of dry type ac electromagnet specific humidity type ac electromagnet shorter life expectancy, the former for hundreds of thousands of times to hundreds of millions of times. And the service life of dc electromagnet is in commonly ten million times or more. In addition, the electromagnetic directional valve processing and manufacturing of parts of the quality, and the reset spring fatigue strength also affect the service life of the electromagnetic directional valve. ( ) Electromagnetic directional valve of the greater than flow ability. Steady fluid power with the increase of flow rate increase, due to the limitation of electromagnet thrust, spring flowers mechanical and electrical magnetic directional control valve of the greater than flow capacity is limited. Electromagnetic directional valve of the greater than flow capacity is related to the different function of the valve core.