Becker SV 5.690/2-500 7.5kW Side Channel Blower
The Becker SV 5.690/2-500 is a two-stage side channel blower delivering 375 m³/h nominal capacity at 50 Hz, with maximum relative vacuum of -400 mbar and maximum positive pressure of +500 mbar.
Powered by a 7.5kW motor, this SV5 configuration combines a substantial volume of air with strong differential capability. Its +500 mbar maximum pressure is particularly notable, while -400 mbar relative vacuum gives the blower considerable capability on suction duties.
The two-stage regenerative arrangement develops vacuum or pressure without sliding carbon vanes or oil-sealed compression. This provides an oil-free process-air path suitable for a wide range of industrial machinery and process systems.
Becker side channel blower supply and technical support from Vacuum Pumps UK.
Replacing a Becker SV 5.690/2-500?
Send us photographs of the complete blower together with clear images of the Becker identification plate and motor nameplate.
We can help identify the installed specification and assess the correct replacement requirement.
Blower Type
Two Stage
side channel blower
Nominal Capacity
375 m³/h
at 50 Hz
Maximum Vacuum
-400 mbar
relative at 50 Hz
Maximum Pressure
+500 mbar
relative at 50 Hz
Motor Power
7.5kW
50 Hz motor
High Differential Two-Stage SV 5.690/2-500 Performance
The Becker SV 5.690/2-500 combines 375 m³/h nominal capacity with a performance envelope intended for considerably more than simple low-pressure air movement. Maximum relative vacuum reaches -400 mbar, while positive pressure extends to +500 mbar.
This balance is useful in industrial systems where substantial airflow must be maintained while overcoming meaningful resistance. On vacuum duties, the -400 mbar capability allows the blower to provide strong suction for handling, extraction and process applications. On pressure duties, the +500 mbar maximum gives significantly greater scope for conveying, aeration and installations with restrictive pipework or process equipment.
The two-stage arrangement is fundamental to the available differential. Air passes through successive regenerative compression sections rather than leaving the blower after a single stage, allowing additional energy to be transferred before discharge.
Within the side channel, the rotating impeller repeatedly accelerates the air as it circulates around the casing. This regenerative action progressively develops pressure without requiring the rubbing compression elements used by other vacuum technologies.
There are no carbon vanes sliding against the compression chamber and no lubricating oil is required in the process-air path. The result is a robust method of generating continuous oil-free vacuum or positive-pressure airflow.
Becker SV 5.690/2-500 Technical Specification
The 7.5kW SV 5.690/2-500 has a nominal capacity of 375 m³/h at 50 Hz. Maximum relative vacuum is -400 mbar and maximum relative positive pressure is +500 mbar.
| Model | Stage | Nominal Capacity 50 Hz |
Maximum Vacuum | Maximum Pressure | Motor Power |
| SV 5.690/2-500 | Two Stage | 375 m³/h | -400 mbar | +500 mbar | 7.5kW |
The nominal airflow and maximum vacuum or pressure figures should not be interpreted as one simultaneous operating point. Available airflow changes as the blower works against increasing differential and system resistance.
For a new installation or replacement selected by duty, the required airflow at the actual operating vacuum or pressure should therefore be considered together with the characteristics of the complete system.
SV 5.690/2-500 Performance Characteristics
375 m³/h Airflow
Substantial nominal airflow for larger machinery, conveying systems and industrial process equipment.
-400 mbar Vacuum
Strong suction capability for applications requiring considerably more differential than simple air movement.
+500 mbar Pressure
High positive-pressure capability for conveying, aeration and process systems with appreciable resistance.
Two-Stage Compression
Successive regenerative stages allow a greater vacuum or pressure differential to be developed.
7.5kW Motor
This SV 5.690/2-500 specification is powered by a 7.5kW electric motor at 50 Hz.
Oil-Free Air Path
Regenerative compression requires neither sliding vanes nor lubricating oil within the process-air chamber.
Applications for the Becker SV 5.690/2-500
The combination of 375 m³/h nominal airflow and strong two-stage differential gives the SV 5.690/2-500 scope for demanding industrial duties on either side of atmospheric pressure.
› Pneumatic conveying
› Vacuum handling and lifting
› Packaging machinery
› Printing and paper equipment
› Aeration systems
› Drying and process air
› Industrial extraction
› General mechanical engineering
Correct selection depends on the required airflow at the actual operating differential. Pipework resistance, filtration, inlet temperature and the characteristics of the process should also be considered.
Replacing an Existing Becker SV 5.690/2-500
Side channel blowers can remain incorporated into production machinery for many years, so the complete installed specification should be established before choosing a replacement solely from the model family.
If you have an SV 5.690/2-500 in service, send us photographs of the complete unit together with clear images of the Becker identification plate and motor nameplate. Photographs showing the inlet, discharge and surrounding pipework can also be helpful.
Where possible, tell us whether the blower is operating on vacuum or positive pressure and describe what it does within the machine or process. Known operating vacuum, pressure or airflow information should also be included.
This enables the replacement requirement to be considered against the actual application as well as the original model designation.
Accessories and System Protection
With up to -400 mbar vacuum or +500 mbar positive pressure available, system protection and correctly sized accessories are important. Unnecessary restriction can increase blower differential and operating temperature, while contamination can adversely affect mechanical life.
Inlet Filtration
Correctly selected filtration helps prevent contamination entering the blower while avoiding excessive suction restriction.
Relief Protection
Vacuum or pressure relief can protect the blower if the system differential rises beyond the intended operating condition.
Silencers
Suitable inlet and discharge silencers can help manage transmitted air noise from higher-flow blower installations.
Pipework & Connections
Correct pipe sizing and suitable connectors help minimise avoidable pressure losses and restriction through the system.
SV 5.690/2-500 Service and Repair
The regenerative compression principle does not use rubbing carbon vanes, but the blower still contains bearings, a motor and other mechanical components that can deteriorate during extended industrial operation.
Changes in noise, vibration, temperature or performance should be investigated. Reduced machine performance can also originate elsewhere in the system, including blocked filtration, pipework restriction, leakage or changes to control valves.
Vacuum Pumps UK can inspect Becker side channel blowers in our workshop, investigate mechanical and performance problems and advise on repair or replacement.
Workshop Inspection
Assessment of Becker side channel blowers and investigation of mechanical or operating problems.
Service & Repair
Repair options can be assessed after inspection of the blower and confirmation of its mechanical condition.
Becker Parts
Becker filters and replacement components can also be supplied through VacAir Superstore.
Becker SV 5.690/2-500 FAQs
What is the capacity of the Becker SV 5.690/2-500?
The nominal capacity of this 50 Hz configuration is 375 m³/h.
What maximum vacuum does the SV 5.690/2-500 produce?
The listed maximum relative vacuum is -400 mbar.
What is the maximum positive pressure?
Maximum relative positive pressure is +500 mbar.
What motor is fitted to this SV 5.690/2-500 specification?
The configuration covered on this page uses a 7.5kW motor at 50 Hz.
Is the SV 5.690/2-500 a two-stage side channel blower?
Yes. The two-stage arrangement allows successive regenerative compression to develop greater differential than a comparable single-stage configuration.
Does the blower use carbon vanes for compression?
No. Vacuum and pressure are generated by regenerative side channel compression rather than rubbing carbon vanes.
Can Vacuum Pumps UK help identify a replacement SV 5.690/2-500?
Yes. Send us photographs of the complete blower, its Becker identification plate and motor nameplate together with details of the application and operating duty.
Becker SV 5.690/2-500 Supply, Replacement or Repair
Talk to Vacuum Pumps UK about an existing SV 5.690/2-500 or a new industrial vacuum or pressure application.
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