YCB stainless steel vacuum arc pump for delivery of solid particles and fibers, corrosive, temperature no higher than 80 ℃, viscosity of 5 × 10-6 ~ 1.5 × 10-3m2 / s (5-1500cSt) oil Other liquids or lubricants similar nature, and for hydraulic transmission. Applications can be used in the oil transfer system, booster pump; can be used in the fuel system, transmission, compression, fuel injection pump; in the hydraulic system used to provide hydraulic power hydraulic pump; in all industrial areas, can be used as a lubricating oil pump. Structural features of this series of gear pumps are gear, shaft, pump, pump cover, bearing housing, shaft seals and other components. Gear double arc sine curve tooth manufacturing. It is compared with involute gear most prominent advantage is the process of gear tooth profile surface is not sliding, so the tooth surface wear, smooth operation, not because of fluid phenomena, low noise, long life and high efficiency. The pump to get rid of the shackles of traditional design, the gear pump in the design, manufacture and use to enter a new field. Pump has a safety valve as overload protection, safety valve for total reflux pressure pump rated discharge pressure of 1.5 times. Also be allowed to discharge according to the actual needs further adjustment in the pressure range. But note that this safety valve relief valve can not be long-term work, when necessary, be installed in the pipeline. Shaft end seal design in two forms, one for mechanical seals, one is packing can be determined depending on usage and user requirements. Overhang from the spindle end to the pump, the clockwise rotation.