Performeance Parameters: ■ Flow: 30~1900 m3/h ■ Inlet pressure: -0. 05~0. 5MPa ■ Outlet pressure: 0. 1~1. 6MPa ■ Medium temperature:-20~120℃ ■ Medium viscosity: 1~1000 mm2/s ■ Revolving speed: 900~1800 r/min ■ Characteristics: Large flow, small size, low noise, low cost, and long service life ■ Application:It is applicable to liquid conveying in port, wharf and oil reservoir under working conditions of low pressure and large flow.