Does the size of the self-cleaning hole have some impact on the pump’s efficiency?
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I feel that if the flushing hole is changed from 4 to 3 or 2.5, less fluid will flow back, so perhaps the pump’s efficiency will increase a bit? Those with experience, please share your thoughts
API682 requires the orifice plate diameter to be at least 3 mm (0.125 in). It’s too small and prone to clogging, which can lead to seal failure. Making it smaller will definitely improve efficiency a bit; it depends on how you weigh the pros and cons.
:victory: Understood. Thank you
Generally, the pressure of the flushing fluid is 0.05–0.1 MPa higher than that in the sealing chamber; too high a pressure can cause erosion of the rotating and stationary rings of the mechanical seal, and it also increases the volumetric losses of the pump, thereby reducing its efficiency