How to set the nitrogen pressure for the gear pump seal
Thread Content
Dear experts, I would like to ask how to calculate the pressure in the sealing chamber of an internal gear pump? Is it approximately equal to the outlet pressure or the inlet pressure? Almost all settings in our factory are set at 0.8 Mpa, while the outlet pressure of some pumps reaches 10 Bar. Please help explain this
Internal gear pumps are generally used to transport high-viscosity materials. The outlet pressure can be adjusted using a safety valve, right?
Our empirical formula for the pressure in the gear pump’s seal chamber is: 70% of the pressure difference between the inlet and outlet. The set pressure for nitrogen in the paln53 unit should be at least 1.5 bar higher than the pressure in the seal chamber.