Curved Blade Radial Flow Open Turbine
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Curved Blade Radial Flow Open Turbine
The Curved Blade Radial Flow Open Turbine (LECBRFOT) is a stirrer for reactors and tanks in chemical and mineral processing where radial flow is needed at low liquid level, in particular to keep solids in suspension and to break up plug flow in flow-velocity-sensitive duties. It is also applied to heat transfer.
How it works
The curved blade turbine (CBT) discharges liquid radially. Because it keeps working at a low liquid level, it suits batch solid suspension and the drainage stage of a process, when all solids must be carried out of the tank as the level falls. In the selection table the turbine type runs at 50 to 350 r/min for low and medium viscosity liquids, giving medium shear with cyclic flow and suiting medium-sized equipment.
Impellers are made from 30 to 2000 mm diameter for shafts from 10 to 300 mm, with 4, 6, 8 or 10 blades. Available materials are carbon steel, SS304, SS316, titanium, nickel, Hastelloy B or C, Monel, zirconium, Inconel and tantalum. Shaft diameters matched to each impeller size are listed below.
Impeller diameter, mm Shaft diameter, mm 150 30, 35 200 30, 40 250 35, 40 300 40, 45, 50 400 45, 50, 55 500 60, 65, 70 600 65, 70, 80 700 70, 80, 90 800 75, 85, 95 900 80, 90, 100 What is included
- Curved blade radial flow open turbine in the selected material, sized to the specified shaft diameter
Specify for your project
- Impeller diameter and shaft diameter from the table
- Number of blades: 4, 6, 8 or 10
- Material of construction
- Liquid viscosity, solids content and mixing speed
- Minimum liquid level at which suspension must be maintained
- Reactor or tank on which the impeller is mounted
This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.
Technical Requirements
- Diameter of impeller: 30~2000 mm
- Diameter of shaft: 10~300 mm
- QTY of impeller: 4, 6, 8, 10
- Available material:CS, SS304, SS316, Titanium, Nickel, Hastelloy B/C, Monel, Zirconium, Inconel, Tantalum
Impeller Dj(mm) Shaft d(mm)
150 30;35 200 30;40 250 35;40 300 40;45;50 400 45;50;55 500 60;65;70 600 65;70;80 700 70;80;90 800 75;85;95 900 80;90;100 Quick Selection
Type Mixing speed Application Feature Marine propeller
Broad blade Propeller
100-500r/min Low viscosity Low shear, low energy consumption
Strong circulation
High-speed operation
Paddle type
- Straight blade
- Pitched blade
- Curved blade
50-200r/min Medium viscosity Close to the tank wall
Heavy duty, slow operation
High energy consumption
Inefficient mixing
Turbine type
- Straight blade
- Pitched blade
- Curved blade
50-350 r/min Low viscosity
Medium viscosity
Medium shear and cyclic
Medium speed operation
Suitable for medium equipment
Disk turbine (Flat blade, pinched blade,
curved blade, )
100-350 r/min Low viscosity
Medium viscosity
Strong shear, gas dispersion
Medium speed operation
High energy consumption
Frame type
Anchor type
Helical Blade
20-150 r/min High viscosity Low shear and speed
Strong cycle ability
High energy consumption
Self inducing type
200-500 r/min Liquid-gas mixing
Strong self-inducing capacity
High gas consumption
High speed operation









