There are certain differences between the electro-hydraulic directional valve and the manual directional valve of the hydraulic pump in terms of principle, working method and application scenarios. First of all, the working principle of the electro-hydraulic reversing valve is to control the spool through the electromagnet, and switch the liquid flow direction of the hydraulic system to different hydraulic actuators. The manual reversing valve is to adjust the liquid flow direction of the hydraulic system by manually operating the valve. Secondly, the electro-hydraulic directional valve can usually realize various functions such as automatic control, remote control and programmable control, and has the characteristics of high flexibility and precise positioning. The manual reversing valve cannot realize intelligent control and automatic operation, and can only realize the switching of the hydraulic system through manual intervention. Finally, according to different actual application scenarios, choosing different types of reversing valves can achieve better results. For hydraulic systems that require frequent switching, the use of electro-hydraulic directional valves can improve work efficiency and stability; while for hydraulic systems that require a small amount of switching or manual maintenance, manual directional valves can be selected to adjust the flow direction of the liquid. In addition to the above differences, there are the following differences between the electro-hydraulic directional valve and the manual directional valve: 90L130-KN-1-AB-80-R-4-F1-F-03-GBA-42-42-24 90L130KN1AB80R4F1F03GBA424224 90-L-130-KN-1-AB-80-R-4-F1-F-03-GBA-42-42-24 90L130KN1AB80R4F1F03GBA424224 90L130-KN-1-BC-80-P-3-F1-F-03-GBA-35-35-24 90L130KN1BC80P3F1F03GBA353524 90-L-130-KN-1-BC-80-P-3-F1-F-03-GBA-35-35-24 90L130KN1BC80P3F1F03GBA353524 90L130-KN-1-BC-80-R-4-F1-F-03-GBA-42-14-24 90L130KN1BC80R4F1F03GBA421424 90-L-130-KN-1-BC-80-R-4-F1-F-03-GBA-42-14-24 90L130KN1BC80R4F1F03GBA421424 90L130-KN-1-BC-80-S-4-F1-H-03-GBA-35-35-24 90L130KN1BC80S4F1H03GBA353524 90-L-130-KN-1-BC-80-S-4-F1-H-03-GBA-35-35-24 90L130KN1BC80S4F1H03GBA353524 90L130-KN-1-CD-80-R-3-F1-H-03-GBA-35-35-24 90L130KN1CD80R3F1H03GBA353524 90-L-130-KN-1-CD-80-R-3-F1-H-03-GBA-35-35-24 90L130KN1CD80R3F1H03GBA353524 1. The electro-hydraulic directional valve has a higher degree of automation, and can be intelligently controlled by PLC, computer and other intelligent equipment. The manual reversing valve requires manual intervention and cannot be automatically controlled. 2. The structure of the electro-hydraulic reversing valve is more complicated than that of the manual reversing valve. It contains multiple components such as electromagnets, valve cores, and springs, which require maintenance and maintenance. The structure of the manual reversing valve is relatively simple, and it only needs to be checked and cleaned for oil tightness. 3. When the electro-hydraulic directional valve is used, it needs to be connected to the power supply, which consumes a certain amount of electric energy. The manual reversing valve does not need a power source, only manual operation is required. 4. In some application scenarios, the electro-hydraulic directional valve can provide higher precision and stability, making the hydraulic system work more efficiently. The manual reversing valve cannot guarantee accuracy and stability. Therefore, it is very important to select a suitable hydraulic reversing valve according to specific application scenarios and needs. 5. Different working pressure. Under normal circumstances, the working pressure of the electro-hydraulic directional valve is relatively high and can be used in larger hydraulic systems; and the manual directional valve is generally only suitable for low-pressure hydraulic systems. 6. The working life is different. Since the electro-hydraulic directional valve introduces electrical components such as electromagnets, its working life may be short; while the manual directional valve does not have this problem, and usually has a longer life. 7. Different control methods. The electro-hydraulic directional valve can realize various control methods such as remote control and automatic control; while the manual directional valve can only be controlled by manual operation. 8. The difficulty of installation and maintenance is different. Due to the complex internal structure of the electro-hydraulic directional valve, its installation and maintenance may be difficult; while the manual directional valve is relatively simple and easy to install and maintain. 9. The control precision is different. Due to the use of electrical components such as electromagnets, the control accuracy of electro-hydraulic directional valves is usually higher than that of manual directional valves. 10. The occupied space is different. Because the electro-hydraulic directional valve contains electromagnets and other components inside, it has a larger volume and takes up more space than a manual directional valve. 11. The applicable flow range is different. The applicable flow range of the electro-hydraulic directional valve is wide, and can be applied to large hydraulic systems; while the manual directional valve is suitable for small hydraulic systems, and its flow range is relatively small. 90L130-KN-1-CD-80-R-4-F1-F-03-GBA-35-35-24 90L130KN1CD80R4F1F03GBA353524 90-L-130-KN-1-CD-80-R-4-F1-F-03-GBA-35-35-24 90L130KN1CD80R4F1F03GBA353524 90L130-KN-1-CD-80-R-4-F1-F-03-GBA-42-14-24 90L130KN1CD80R4F1F03GBA421424 90-L-130-KN-1-CD-80-R-4-F1-F-03-GBA-42-14-24 90L130KN1CD80R4F1F03GBA421424 90L130-KN-1-CD-80-R-4-F1-F-03-GBA-42-42-24 90L130KN1CD80R4F1F03GBA424224 90-L-130-KN-1-CD-80-R-4-F1-F-03-GBA-42-42-24 90L130KN1CD80R4F1F03GBA424224 90L130-KN-1-CD-80-R-4-F1-H-03-GBA-42-42-24 90L130KN1CD80R4F1H03GBA424224 90-L-130-KN-1-CD-80-R-4-F1-H-03-GBA-42-42-24 90L130KN1CD80R4F1H03GBA424224 90L130-KN-1-NN-80-R-3-F1-F-03-GBA-35-35-24 90L130KN1NN80R3F1F03GBA353524 90-L-130-KN-1-NN-80-R-3-F1-F-03-GBA-35-35-24 90L130KN1NN80R3F1F03GBA353524 12. The control speed is different. The electro-hydraulic directional valve can realize fast switching and precise positioning; while the switching speed of the manual directional valve is slow and cannot achieve precise positioning. 13. The running noise is different. Due to the presence of electromagnets and other components inside the electro-hydraulic directional valve, certain noise may be generated during its operation; while the manual directional valve has less noise during operation. 14. Different operation methods. Since the electro-hydraulic directional valve needs to be used in conjunction with the control equipment, its operation method is not as intuitive and convenient as that of the manual directional valve. 15. The energy consumption is different. Since the electro-hydraulic directional valve needs to be powered on, it will consume a certain amount of energy; while the manual directional valve does not need to consume any energy. 16. The prices are different. Since the structure of the electro-hydraulic reversing valve is more complicated than that of the manual reversing valve, the corresponding price is also higher. In general, electro-hydraulic directional valves and manual directional valves have their own advantages and disadvantages. Users need to make comprehensive considerations based on specific usage scenarios, work requirements, and budget control when choosing, in order to achieve the best performance. Effect.