Product performance and use: PV2R series high pressure low noise vane pump is an independent research and development of domestic high-performance products with state-of-the-art performance, knot absolutely reasonable, good reliability, low noise, minimal pulsation, stable quality. Seiko products manufacturing, in particular, to adapt to the requirements of high-precision low-noise equipment, widely used in cutting machinery, plastic machinery, leather machinery, forging machinery, construction machinery and other fields. Second, product technical parameters: 1, the nominal displacement "4" "6" and "8" pump, pressure over 16MPa use, the speed should be over 1450r/in 2, used in high speed large displacement single pump and dual the pump suction port of negative pressure should be reduced. 3, synthetic hydraulic oil and water hydraulic fluid, the maximum speed limit at 1200r/min. 4, for special occasions that require low noise, the proposed work speed selection 1000r/min.