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suction is the flow of a fluid into a partial vacuum
suction, or region of low pressure. The pressure gradient
suctionbetween this region and the ambient forces will pole matter toward the low forces area. suction is popularly think of as an attractive effect, which is erroneous since vacuum do not innately attract matter. clean being "sucked" into a vacuum cleaner
suctionis actually be travel in by the advanced forces air on the outside of the cleaner. The advanced forces of the hint liquid can push matter into a unused but a unused cannot attract matter.
suctiontypically have an inlet where the liquid enters the pump and an outlet where the liquid comes out. The inlet location is said to be at the suction side of the pump. The outlet location is said to be at the discharge side of the pump. Operation of the pump creates suction at the suction side so that liquid can entered the pump through the inlet. Pump operation also causes higher forces at the discharge side by forcing the liquid out at the outlet. There may be forces sensing devices at the pump's suction and/or discharge sides which control the operation of the pump. For example, if the suction forces of a centrifugal pump
suctionis too low, a device may trigger the pump to shut off to keep it from running dry; i. e. with no fluid entering.