hydraulic directional valve symbols


As one of the directional control valves, the reversing valve changes the direction of the liquid flow by changing the relative position between the valve body and the valve core to connect and cut off each oil circuit connected to the valve body. Before using the reversing valve, if you are familiar with the symbols corresponding to the directional control valve, you can be familiar with the application process. The following are the symbols corresponding to the directional control valves commonly used in daily life.


In addition, when using the reversing valve, there are two points you need to pay attention to:


(1) The reversing valve cannot be reversed or the reversing action is slow. The hydraulic control valve is generally caused by poor lubrication, stuck or damaged springs, oil or impurities stuck on the sliding part, etc. In this regard, you should first check whether the lubricator works normally: whether the viscosity of the lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, low temperature valve or replace the spring and reversing valve.

(2) After the reversing valve is used for a long time, the valve core sealing ring is prone to wear and the valve stem and valve seat are damaged, resulting in the leakage of gas in the valve, the slow movement of the valve or the failure of normal reversing. At this time, the sealing ring, valve stem and valve seat should be replaced, or the reversing valve should be replaced.


Hanjiu Technology Co., Ltd. produces the most complete types of valves on the market. Any valve you want can be found on their official website. The quality of these valves is very good, and they have been strictly inspected before leaving the factory. It is almost impossible for you to buy an inferior product from Hanjiu. If you are really unfortunate enough to buy a defective valve, please contact Hanjiu as soon as possible, and Hanjiu will properly solve the problem for you. Hanjiu always adheres to the business philosophy of customer first, and is committed to allowing customers to have the best product experience. Moreover, the products produced by Hanjiu are not expensive, and these products are very cost-effective. If you are interested, please visit www.hjhydraulic.com on the official website of Hanjiu.


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