Mechanical seal manufacturer Describe the purpose of the flushing plan for the seals

Direct injection of liquid into the high-pressure side of double or single seal is called "flushing". Generally, pumps shall be flushed, especially light hydrocarbon pumps.

1. Flush to dissipate heat. The heat generated by the liquid seal must be controlled. This can be achieved by flushing the seal chamber with liquid to take away heat and control the temperature rise.

2. Lower the liquid temperature. In some cases, the liquid temperature is too high to affect the sealing performance. In such cases, the temperature must be reduced to improve the performance of the liquid.

3. Change the pressure of the seal chamber. In some cases, the seal chamber pressure needs to be increased or decreased to improve performance. This can be achieved by inhibiting evaporation or reducing the heat load on the seals.

4. Clean process fluid. If the process fluid contains unsuitable solid particles or contaminants, the fluid in the seal cavity needs to be cleaned. In extreme cases, it may also be necessary to provide clean fluid from outside the sealing system.

5. Control the atmospheric side of the seal. Process liquids may dry, crystallize, or coke as they come into contact with the atmosphere. It is very important to prevent interaction with the atmosphere so as not to adversely affect the sealing performance.