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Analysis of the causes of gear pump seal leakage

  • 1、The outer diameter of the seal is too loose with the aperture of the seal seat.
  • 2、The gland is installed incorrectly, blocking the drainage holes on the front and rear covers.
  • 3、The direction of the pump body is reversed, so that the oil pressure port is connected to the unloading groove, forming pressure to wash out the seal.
  • 4、The oil pipe threads are not tightly matched. Gear pump seal as an important part of the gear pump, playing a fixed spindle, sealing the role of the media. If there is a leak, first check whether the selection and installation of the seal is correct, followed by checking whether the working conditions are running smoothly
  • 5、oil quality is not clean, oil return is not smooth.
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