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、鐵銹和焊渣會堵塞或堵塞下閥蓋的節流孔、導向孔和平衡孔，導致閥芯表面和導向面拉傷、劃傷，密封面出現壓痕，這通常發生在新投入運行系統的初始階段和大修后。這是一個常見的酗酒問題。在這種情況下，需要將其拆下并清潔。除渣外，若密封面損壞，還應打磨;同時，打開底塞，沖洗從平衡孔掉入下閥蓋的爐渣，沖洗管道。投入運行前，將調節閥全開，待介質流動一段時間后投入正常運行。

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.外部沖洗方法：當一些含有固體顆粒的易沉淀介質由普通閥門調節時，它們經常被阻塞在節流器和導管處。沖洗氣體和蒸汽可從外部連接下閥蓋的底部塞。當閥門堵塞或卡滯時，可打開外部氣體或蒸汽閥門，在不移動調節閥的情況下完成沖洗，使閥門正常工作。

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、管道過濾器的安裝方法：對于小口徑調節閥，特別是超小流量調節閥，節流間隙很小，介質中不得有少量的爐渣。如果堵塞，在閥門前面的管道上安裝一個過濾器，以確保介質順利通過。帶定位裝置的調節閥工作不正常，氣路堵塞是Zui的常見故障。因此，在使用定位裝置時，需要正確處源。通常的方法是在定位裝置之前，在供氣管道上安裝空氣過濾減壓閥。

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.山東閥門銷售處廠家認為，增加節流間隙的方法是：如果介質中的固體顆粒或管道中沖走的焊渣、鐵銹因無法通過節流口而堵塞或卡住，可以使用節流間隙大的節流件。由于它們的節流面積集中，而不是沿周向分布，因此很容易故障。如果是單座閥或雙座閥，柱塞閥芯可更換為“V”型閥芯或套筒閥。

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.