Send a request
Flat Blade Open Turbine Radial Flow Impeller
The Flat Blade Open Turbine Radial Flow Impeller (LEFBOTRFI) is a stirrer for pressure reactors and mixing tanks where high shear and high power input are needed. It is the early, simple turbine geometry: flat blades set radially on an open turbine without a disc. Typical duties are heat transfer, fast chemical reactions and power-hungry processes.
How it works
The flat blades discharge liquid radially toward the vessel wall, which gives the shear needed for fast reactions and for moving heat between the liquid and a jacket or coil. Installing a horizontal baffle reduces reverse mixing and improves the stirring effect. In the selection table the turbine type runs at 50 to 350 r/min for low to medium viscosity liquids and gives medium shear with cyclic flow, suited to medium-sized equipment.
Impellers are made from 30 to 2000 mm diameter for shafts from 10 to 300 mm, with 4 blades as standard and 6, 8 or more on request. 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, 40 300 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 1000 90, 100, 110 What is included
- Flat blade open turbine impeller 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 standard, 6 or 8 on request
- Material of construction
- Liquid viscosity, mixing speed and duty: heat transfer, reaction or dispersion
- Reactor or tank on which the impeller is mounted and whether baffles are fitted
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....)
- 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；40 300 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 1000 90；100；110 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
| Brand | Coretest |
