Common problems and solutions of gear pumps

The gear pump adopts a double arc sine curve tooth profile arc with global level in the 1990s. Compared with involute gears, its prominent advantages are that there is no relative sliding of the tooth profile during the gear meshing process, so there is no wear on the tooth surface, balanced operation, no trapped liquid phenomenon, low noise, good service life, and good speed. This pump breaks free from the constraints of conservatism, allowing gear pumps to enter a new area in production and use. The pump is equipped with a differential pressure stabilizing valve as overload protection, and the full reflux pressure of the control valve is 1.5 times the rated discharge pressure of the pump. It can also be adjusted according to actual needs within the allowable discharge pressure range. However, this stabilizing valve cannot be used as a pressure reducing valve for long-term operation, and can be installed separately on the pipeline if necessary. The pump shaft end seal has two forms, one is mechanical seal and the other is packing seal, which can be determined according to specific usage and user requirements.