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Welding slag, rust, slag, etc. in the pipeline cause blockage or jamming in the throttle, guide part, and balance hole of the lower valve cover, causing strain and scratches on the valve core curved surface and guide surface, and indentation on the sealing surface. This often occurs in new systems and in the early stage of commissioning after overhaul. This is a common fault. In this case, it must be removed for cleaning and the slag must be removed. If the sealing surface is damaged, it should also be ground; at the same time, the bottom plug should be opened to flush out the slag that falls from the balance hole into the lower valve cover, and the pipeline should be flushed. Before commissioning, let the fluorine-lined Special Valve fully open, and the medium will flow for a period of time before it is put into normal operation.
When ordinary valves are used to adjust some media that are easy to precipitate and contain solid particles, they are often blocked at the throttle and guide. Flushing gas and steam can be connected to the bottom plug of the lower valve cover. When the valve is blocked or stuck, open the external gas or steam valve to complete the flushing work without moving the fluorine-lined Special Valve, so that the valve can operate normally.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.