Problems in mech seal pump operation
The working pressure of the mech seal pump is the pressure of the sealing medium inside the seal. Since the medium pressure in the sealing, the chamber is not equal to the working pressure of the pump, and the working pressure of the mechanical seal is equal to or lower than the working pressure of the pump, the working pressure of the seal is determined according to the structure of the pump. For example, a single-stage cantilever pump should consider unbalanced holes or back vanes according to the multi-stage pump stage, the installation of the multi-stage pump stage.
Usually, in the practice of a mech seal pump, the working pressure is higher than 3MPa, the balanced seal is selected by the balanced seal, and the multi-stage seal can be gradually sealed and decreased. Consider the type of construction (eg multi-port mechanical seal, etc.). Typically, there is an unbalanced seal below 0.7 MPa or below 0.7 MPa for gasoline commercials. An unbalanced seal of less than 6.6 mPa.m/s can also be selected. For oils with a density lower than 0.6kg/L, balance the seal. The balanced seal adopts the pressure of 0.2-0.33 MPa and the pressure of 0.2-0.33 MPa, with low viscosity and poor lubricity.
Precautions for use of mech seal pump
The correct operation and use of the mech seal pump are critical to its longevity. In general, the following precautions apply to the correct use of most mechanical seals.
Most mech seal pumps are designed to work in a liquid environment, so the sealing surface must be immersed in the liquid before the device is activated. Dry running will seriously damage the sealing surface and affect the service life of the mechanical seal. Of course, start the equipment to make sure that the motor rotation will not break the seal, but the mechanical seal of the equipment running at full speed must work in the liquid.
The piping system connected to the equipment must also be cleaned. If the debris in the system is not cleaned up in time, the debris may enter the seal after the long-term operation, thereby affecting the service life of the mechanical seal. Premature failure of seals in new equipment is likely due to this. Therefore, before starting a new device, a filter must be set at the entrance.
Turn on the cooling or flushing system, whether the equipment is running or not, it is best not to cut off the cooling or flushing system, especially when the equipment is delivering a hot medium or the medium may crystallize after cooling.
The above are the precautions for the use of the mech seal pump, I hope it will be helpful to everyone. Akman Seals, as a mech seal pump manufacturer, has excellent product quality. If you are interested in mechanical seals, you can pay attention to our website.