The hydraulic valve blocks designed and produced by not only has high reliability and small pressure loss to ensure that there is no oil running between the channels, but also has compact structure, small occupied space, simple oil circuit and easy pipe layout, so as to ensure the high efficiency requirements of different actions of various actuator elements. The valve block can control the valve, which is easy to adjust and operate. hydraulic valve block was designed and proofed successfully at one time within 1 month, which impressed the engineers o The vast majority of hydraulic valve block manufacturers blindly proofed according to customer drawings, ignored working conditions, and did not understand the internal structure and working principle of hydraulic valve block. It is easy to cause hidden dangers in the hydraulic system, and the problem cannot be found. power insensitivity of the hydraulic system related to the hydraulic valve block We replied that this is difficult to judge because it is a system problem that needs to be checked one by one. the next day then we understood why he left such The power unit of a hydraulic system developed by his company needs a hydraulic valve block. Their engineers mentioned that the sensitivity of the power unit is the key and that all components need to cooperate closely. the hydraulic valve block manufacturer strictly controlled the accuracy according to the drawings, it could be easily done. After the hydraulic valve block is finished, it is installed to test the hydraulic power unit. After the oil pump is started, the instantaneous pressure supply at the oil outlet of the power unit does not come up, and it just supply normal pressure after a few minutes. After checking each component one by one, it is suspected that there are hidden dangers in the hydraulic valve block. After detecting the hydraulic valve block, there is no problem in the oil passage and channel of the hydraulic valve block the original hydraulic valve block manufacturer for analysis and solution. The manufacturer said that the hydraulic valve block was completely produced in accordance with the drawings and the accuracy was within the required range, and the reason for problem was unknown. hydraulic valve block , they all said that they could match the drawings, but not sure about the problems of the hydraulic valve blocks. hydraulic system and the picture of the oil circuit running direction of the hydraulic valve blocks of the original have ideas after 3 aspects of comparative analysis.