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By certification 
Centrifugal pumps for various applications. FreFlow pumps are self-priming centrifugal pumps suitable for handling contaminated and low-viscosity liquids.
Working principle:
Centrifugal stainless steel impeller with a number of backward curved blades mounted on the pump shaft rotates at a high speed under the drive of the motor, so that the liquid on the blade channel is driven by the centrifugal pump force to be thrown from the center of the impeller to the outer edge of the impeller, at a higher flow rate. Flow into the volute-shaped centrifugal pump cover and merge into the discharge port to send out. At the same time, a certain degree of vacuum is formed in the center of the volute-shaped centrifugal pump cover, so that the liquid material is continuously sucked into the pump cavity from the feed port, and the liquid material is continuously output from the discharge port.
Features:
● Voltage : 220V – 240V 50Hz
● Power : 0.75KW - 2800RPM
● Power : 1HP
● 3 Phases
● Outlet Size : 25mm ( 1″)
● Inlet Size : 25mm (1″)
● Head up to 36m
● Max flow : 100l/min
● Flow rate up to 160 l/min (9.6 m/h)
● Max head 58 m
● Temperature range -10 degree to +90 degree
● Max. working pressure: 6 bar
http://www.steelerextractors.com/
