1. Increase the opening and extend the service life
When starting to use the Plug Valve, try to work at a wide opening, such as 80%. In this way, the erosion, wear and other damage caused by the initial impurities in the pipeline occurs in places other than the damaged part of the valve core. After the impurities in the pipeline are removed, the opening of the Universal Valve is adjusted to a slightly larger normal opening. , as the fluid damages the valve core and the flow rate increases, the arc polishing machine correspondingly reduces the opening, which continues to destroy and gradually closes, so that the entire valve core is fully utilized until the root and sealing surface of the valve core are damaged and cannot be used.
2. Increase the diameter and increase the lifespan
We use the CV value calculation formula to calculate the correct CV and select the appropriate valve diameter (standard). Under the same flow rate, the smaller the valve diameter, the faster the flow rate of the fluid, and the more severe the erosion of the valve core and seals by the medium. It is recommended that the user appropriately increases the diameter of the valve within the range where the opening can be freely adjusted, thereby reducing wear.
3. Change the structure of arc polishing machine to improve service life
The Plug Valve initially adopted a two-piece structure. In order to make the valve structure more reasonable, it was changed to the commonly used three-piece structure. This structure also has double sealing characteristics because of its double valve seat. At the same time, when choosing a Plug Valve, pay attention to choosing a valve with a slope transition design. Such a Universal Valve can reduce the impact of the fluid.
4. Transfer the damaged location to improve service life. Move the severely damaged area to a secondary location to protect the sealing surface and throttling surface of the valve core and valve seat. Usually Universal Valve are severely eroded. The place where the fluid velocity is fast is the lower part of the fluid inlet. For the current three-piece structure of Universal Valve, the ball core can be used in reverse direction. In this way, one ball core can be used four times at the inlet. Extend the life of the valve 4 times.
5. Clean pipelines to extend life
Welding slag, rust, solidified slag, iron wire, cloth strips, etc. in the pipeline cause blockage or jamming at the orifice and the guide part of the arc polishing machine, causing the valve core to break. This often occurs in newly put into operation systems and after overhaul. Initial stage of operation. This is a common failure. In this case, it must be disassembled and cleaned to remove the residue. If the sealing surface is damaged, it should be ground; at the same time, open the bottom plug to flush away the residue and flush the pipeline. Before putting into operation, fully open the Universal Valve and allow the medium to flow for a period of time before incorporating it into normal operation.
