High pressure piston pump characteristic instantaneous flow is pulsating, piston factory, this is because piston pump, the suction and discharge of the liquid medium is alternately process, and piston displacement process, its speed and constantly changes. Only one working chamber of the pump, the pressure piston pump, flow rate of the pump is not only change over time, and is not continuous. With the increase in the working chamber, instantaneous flow pulsation amplitude smaller and smaller, and even can be considered practically turbulence. Precautions a pump working medium YB-N32 hydraulic oil, when the ambient temperature is below 10 ℃, the use of low viscosity aviation hydraulic fluids. Applications 120 mesh oil filter mesh filter when refueling. 2 regardless of the pump as a motor pump is installed outside the tank, or mounted in the tank as a complete pump stations, variable piston pump, it must ensure that the oil level is higher than the oil filter when used in unloading state, idling 10 minutes, move the motor several times, piston pumps, drain suction air cavity before use is normal. 3 Use the strict control of the oil temperature 20 ℃ ~ 60 ℃, ambient temperature is below potential warming measures: oil temperature higher than 60 ℃ must have cooled cooling measures. 4 regular inspection oil, particulate contamination could easily lead to the plunger does not work properly or stuck, oil deterioration, performance degradation can cause loss of bearings and piston top research seriously shorten life. 5 non-operation over the set pressure. Hydraulic Lu (Figure), piston factory, piston pump supplied by Lu hydraulic equipment plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) located in Dezhou City, Shandong Province, seven West Industrial Park. Scraps and development in the wave of market economy, the current Lu hydraulic force has a high profile in the hydraulic machinery and parts, and enjoy a good reputation. Hydraulic Lu made the whole network business alliance certification, marking our service and management level has reached a new height. Lu Hydraulic staff willing to work with all people of insight and common development, for a better future.