There are three cleaning methods for mechanical seals, so what are these three methods? Let me introduce it to you below.
The first method is external flushing
External flushing is the process of selecting a relatively clean liquid with a pressure higher than the sealing medium and a temperature lower than the mechanical seal medium in the process system as the flushing solution to flush the sealing chamber. It is required that the selected flushing solution does not affect the product quality and quality after entering the medium
External flushing is a commonly used method in flushing, which is commonly used in sealed media containing particles and impurities. A separate flushing liquid system is required, which is complex and increases costs. It is only used in media sealing requirements that are extremely strict. Selecting the appropriate flushing liquid from the process system is a simple and reliable method for external flushing, but it is necessary to have a selectable flushing liquid in the process system where the sealing medium is located By using external flushing, as long as the flushing liquid is selected properly and the structural design is reasonable, the service life of mechanical seals can be greatly improved
The second method is self rinsing
Self flushing refers to the process where the medium is introduced from the outlet or high-pressure end of the pump, and after flushing the friction pair, it directly enters the pump chamber The method of self rinsing is simple, but it can only be used when the medium is relatively clean
The third method is reverse flushing
The so-called reverse flushing is to lead the medium in the sealed chamber to the inlet end of the pump, and the medium in the sealed chamber is continuously updated to prevent particles and impurities from settling in the medium, which may cause premature damage to the friction pair