The regulating valve is suitable for air, water, steam, various corrosive media, mud, oil and other media. However, the regulating valve will have some faults in use. How to adjust these faults? Let the manufacturer of Shandong valve sales office take us to know.

1.清洗方法：管道中的焊渣、铁锈和焊渣会堵塞或堵塞下阀盖的节流孔、导向孔和平衡孔，导致阀芯表面和导向面拉伤、划伤，密封面出现压痕，这通常发生在新投入运行系统的初始阶段和大修后。这是一个常见的酗酒问题。在这种情况下，需要将其拆下并清洁。除渣外，若密封面损坏，还应打磨;同时，打开底塞，冲洗从平衡孔掉入下阀盖的炉渣，冲洗管道。投入运行前，将调节阀全开，待介质流动一段时间后投入正常运行。

1. Cleaning method: welding slag, rust and welding slag in the pipeline will block or block the orifice, guide hole and balance hole of the lower valve cover, resulting in strain and scratch on the valve core surface and guide surface, and indentation on the sealing surface, which usually occurs in the initial stage of the newly put into operation system and after overhaul. This is a common drinking problem. In this case, it needs to be removed and cleaned. In addition to slag, if the sealing surface is damaged, it shall also be polished; At the same time, open the bottom plug, flush the slag falling into the lower valve cover from the balance hole and flush the pipeline. Before putting into operation, fully open the regulating valve and put into normal operation after the medium flows for a period of time.

2.外部冲洗方法：当一些含有固体颗粒的易沉淀介质由普通阀门调节时，它们经常被阻塞在节流器和导管处。冲洗气体和蒸汽可从外部连接下阀盖的底部塞。当阀门堵塞或卡滞时，可打开外部气体或蒸汽阀门，在不移动调节阀的情况下完成冲洗，使阀门正常工作。

2. External flushing method: when some precipitable media containing solid particles are regulated by ordinary valves, they are often blocked at the restrictor and conduit. Flushing gas and steam can be externally connected to the bottom plug of the lower bonnet. When the valve is blocked or stuck, open the external gas or steam valve and complete the flushing without moving the regulating valve to make the valve work normally.

3、管道过滤器的安装方法：对于小口径调节阀，特别是超小流量调节阀，节流间隙很小，介质中不得有少量的炉渣。如果堵塞，在阀门前面的管道上安装一个过滤器，以确保介质顺利通过。带定位装置的调节阀工作不正常，气路堵塞是Zui的常见故障。因此，在使用定位装置时，需要正确处源。通常的方法是在定位装置之前，在供气管道上安装空气过滤减压阀。

3. Installation method of pipeline filter: for small-diameter regulating valve, especially ultra-small flow regulating valve, the throttling clearance is very small, and there shall be no small amount of slag in the medium. If blocked, install a filter on the pipe in front of the valve to ensure the smooth passage of the medium. The regulating valve with positioning device does not work normally, and the blockage of gas path is a common fault of Zui. Therefore, when using the positioning device, the air source needs to be handled correctly. The usual method is to install an air filtration pressure reducing valve on the air supply pipe before positioning the device.

4.山东阀门销售处厂家认为，增加节流间隙的方法是：如果介质中的固体颗粒或管道中冲走的焊渣、铁锈因无法通过节流口而堵塞或卡住，可以使用节流间隙大的节流件。由于它们的节流面积集中，而不是沿周向分布，因此很容易故障。如果是单座阀或双座阀，柱塞阀芯可更换为“V”型阀芯或套筒阀。

4. The manufacturer of Shandong Valve Sales Office believes that the method to increase the throttling clearance is: if the solid particles in the medium or the welding slag and rust washed away in the pipeline are blocked or stuck because they cannot pass through the throttling port, the throttling parts with large throttling clearance can be used. Because their throttling area is concentrated rather than distributed along the circumference, it is easy to eliminate the fault. In case of single seat valve or double seat valve, the plunger valve core can be replaced with "V" valve core or sleeve valve.