Specification: Capacity (m3/h): 126-576 Head (m): 6-45 Speed (r/min): 800-1400 Max. Efficiency N-n%: 60 NPSH (m): 3-4.5 Allowable Max. Power (Kw): 120   Description: The range of Dredge and Gravel pumps is designed specifically for continuous pumping of extremely aggressive slurries, with a wide particle size distribution. Capable of ...

http://http://www.sunbopump.com/Gravel-Pump/86-Gravel-Sand-Pump，Shield-Tunneling-Pump-155.html