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Types of Centrifugal Pumps in Wastewater, Self-priming pump, Dry-Pit Pumps

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Post on 2019-4-13 16:08:59 | All posts |Read mode
Rotary piston pumps are similar to a rotary lobe pump, Due to the rotor design, the shafts have a shorter design, This results in higher operating pressures, The rotor design causes higher pulsation as a rotary lobe pump, Flap type pumps are a relict mainly used in the sugar industry for high viscous media, Due to their extreme energy inefficient pulsation, this type of pump is nowadays mostly replaced by rotary lobe pumps.
Centrifugal Pumps
They are a sub-class of fluid kinetic machines, They are cheap, but can be used only for low viscous media, such as water, soft drinks, wine, yeast, brine, etc, In the food and beverage industry centrifugal pumps often have a lower efficiency factor than displacement pumps.
Self-pumping pump is easier to operate, but it has its limitations and fair share of problems, All centrifugal pumps need to be primed before operation, It can overcome the problem of air binding by mixing air with water, there are issues with self-priming pumps, For a new self-primed pump, the process of priming has to be followed before it is being put into use.
you should have a suction line at 0.5 metres (20 inches) of vacuum when the pump is functioning, The pump should be placed as close as possible to the suction source, Self-priming pumps will be primed again following the initial priming


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