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The hydraulic copper scrap baler is a kind of equipment that directly cold-presses various metal scraps under high pressure, which is convenient for the storage, transportation and recycling of metal scraps. At present, it is widely used in recycling processing industry and non-ferrous and ferrous metal smelting industries. Almost all hydraulic copper scrap baler adopts hydraulic drive for production and processing, and the pressure reducing valve is an important original in the hydraulic system.

The main function of the pressure reducing valve in the hydraulic copper scrap baler is to ensure that the outlet pressure is lower than the inlet pressure, so that the outlet pressure is stable from other influences. However, due to improper operation, the inlet and outlet pressure may be the same, and the adjustment handle is also It can't be adjusted normally. What are the reasons for this situation? This article briefly summarizes.

The reason for this situation of the pressure relief valve of the hydraulic copper scrap baler may be that the main valve core and the penalty hole are too tightly matched. At this time, a reasonable gap should be left between the two to ensure that it is within a certain range. Therefore, when arranging the valve core and the valve hole, the valve hole should be ground first, and then the valve core should be arranged, so that it is not easy to cause this problem.

If the valve cover is installed in the wrong direction when disassembling the pipe valve of the hydraulic copper scrap baler, the leaked oil port will be blocked, so the oil cannot be ruled out of the predicament, and the main valve will If the opening is large, the pressure cannot be reduced. In this case, the valve cover should be reversed. Or because the outer diameter of the damping member of the main spool is not enough, resulting in insufficient surplus during use, the pressure reducing valve will also fail, and the appropriate damping member should be replaced for installation.

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