What Is The Hydraulic Pumps -Down Phenomenon?
The suction of the hydraulic pump mainly refers to the mixing of air into the oil sucked by the hydraulic pump, which not only easily causes the phenomenon of "cavitation" and increases noise, but also affects the volumetric efficiency of the hydraulic pump and easily deteriorates the hydraulic oil. Not allowed in hydraulic systems. The volumetric efficiency of the hydraulic pump is generated, and the hydraulic oil is easily deteriorated, so this is a phenomenon that is not allowed in the hydraulic system. The reasons for the hydraulic pump suction phenomenon are: insufficient oil in the oil tank; the suction pipe invades the oil too shallow; the suction pump suction position is too high; the oil viscosity is too large; the flow area of the suction port of the hydraulic pump is too small, so Poor oil absorption; the surface of the oil filter is blocked by dirt; the pipeline leaks or the oil return pipe is not submerged under the liquid surface, allowing a large amount of air to enter the oil.