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4640
Fixed-speed compact submersible mixer
Flygt 4640 is a fixed-speed, direct-drive compact submersible mixer for treatment basins and process tanks. The manufacturer’s 50 Hz brochure lists 2.5 kW motor power, 200–800 N thrust and a 368 mm propeller. Backswept blade geometry supports fibre handling. Guide-bar mounting allows positioning at the required depth and orientation. Determine the required thrust from tank dimensions, liquid level, solids concentration and the purpose of mixing.
Final performance and suitability are verified for the selected model and duty point.
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A solution for your application.
Application areas
Activated sludge and biological treatment basins · Equalisation and sludge holding tanks · Processes requiring solids suspension
Selection considerations
Determine thrust and positioning from tank dimensions, liquid level and solids concentration. Motor power alone is insufficient for selection.
Share tank dimensions, liquid level, temperature and solids concentration with our technical team. We can assess thrust, mixing objectives and installation together.
MANUFACTURER DATA
Technical specifications
| Motor power (50 Hz) | 2.5 kW |
| Thrust range (50 Hz) | 200–800 N |
| Propeller diameter | 368 mm |
| Installation | Submersible |
Motor power and thrust alone do not determine selection. Assess propeller diameter, tank geometry, liquid level and process conditions against the selected variant’s technical data.
DOWNLOADABLE RESOURCES
Technical documents
Open manufacturer PDFs and save them to your device. Check the model and document revision.
Frequently asked questions
What applications is Flygt 4640 used for?+
Flygt 4640 is a fixed-speed, direct-drive compact submersible mixer for treatment basins and process tanks. The manufacturer’s 50 Hz brochure lists 2.5 kW motor power, 200–800 N thrust and a 368 mm propeller. Backswept blade geometry supports fibre handling. Guide-bar mounting allows positioning at the required depth and orientation. Determine the required thrust from tank dimensions, liquid level, solids concentration and the purpose of mixing.
Where can I find technical catalogues and manuals?+
Use the PDF links in the Technical Documents section of this page to access manufacturer documents. Check the model, frequency and document revision before use.
What information is needed for selection and a quotation?+
Share flow, total head, liquid properties, temperature, power supply and installation conditions. Mixers also require tank dimensions, liquid level and solids concentration.
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