Becker SV7.330/2 4kW Side Channel Blower
The Becker SV7.330/2 is a 4kW two-stage side channel blower providing 180 m³/h nominal capacity, -410 mbar maximum relative vacuum and +440 mbar maximum positive pressure.
Its combination of moderate airflow and substantial differential gives the SV7.330/2 a useful performance profile for both vacuum and blowing applications. Positive-pressure capability is particularly strong, reaching +440 mbar at 50 Hz.
The blower uses regenerative, non-contact compression, providing an oil-free process-air path.
Vacuum Pumps UK supports Becker side channel blower supply, replacement and repair.
SV7.330/2 replacement required?
Send us the model plate, motor plate and photographs of the existing installation.
We can help identify the blower and consider the appropriate replacement specification.
Design
Two Stage
side channel
Nominal Flow
180 m³/h
50 Hz
Max Vacuum
-410 mbar
relative
Max Pressure
+440 mbar
relative
Motor Rating
4kW
at 50 Hz
180 m³/h with Strong Pressure Capability
The SV7.330/2 occupies a useful position between smaller low-flow units and substantially larger industrial blowers. At 50 Hz its nominal capacity is 180 m³/h, while the two-stage arrangement enables maximum relative vacuum of -410 mbar and maximum positive pressure of +440 mbar.
The pressure figure is slightly greater than the vacuum differential, giving this model a performance profile that can be particularly useful for blowing duties. Examples can include conveying, aeration and process-air applications where the blower must overcome resistance downstream.
Its vacuum capability remains substantial. At up to -410 mbar relative vacuum, the SV7.330/2 can also be considered for suction duties such as material handling, machine vacuum and extraction, subject to the airflow required at the actual operating point.
Two-stage side channel compression differs from positive-displacement vacuum pump technology. The rotating impeller repeatedly accelerates the air within a regenerative channel, transferring energy into the gas without relying upon sliding vanes to seal individual compression chambers.
The result is continuous airflow with an oil-free process-air path. Correct application still requires consideration of operating differential, airflow, cooling and the complete system resistance.
Technical Data – Becker SV7.330/2
For the 4kW 50 Hz configuration, the SV7.330/2 is listed at 180 m³/h nominal capacity with -410 mbar maximum relative vacuum and +440 mbar maximum relative pressure.
| Model | Stage | Nominal Capacity | Maximum Vacuum | Maximum Pressure | Motor Power |
| SV7.330/2 | Two Stage | 180 m³/h | -410 mbar | +440 mbar | 4kW |
Understanding the SV7.330/2 Performance
180 m³/h Flow
Provides a useful mid-range air volume for machinery, process and conveying applications.
-410 mbar Vacuum
Provides substantial suction differential for industrial vacuum applications.
+440 mbar Pressure
The slightly stronger positive-pressure capability is useful where discharge resistance is significant.
Two Regenerative Stages
The second stage enables greater pressure differential to be developed than a basic single-stage configuration.
4kW Motor
Matches this configuration’s combination of moderate airflow and relatively high operating differential.
Clean Process Air
No lubricating oil is introduced into the process-air stream by the side channel compression mechanism.
Industrial Uses for the SV7.330/2
The SV7.330/2 can be applied on either the suction or discharge side of a process. Its 180 m³/h nominal capacity and +440 mbar pressure capability make it particularly relevant where moderate airflow must overcome appreciable system resistance.
› Aeration and agitation
› Drying systems
› Process-air supply
› Packaging machinery
› Printing and paper machinery
› General production equipment
SV7.330/2 Replacement and Technical Support
Many older Becker blowers remain installed as original components within production machinery. If the machine still performs its intended process correctly, the existing blower provides valuable information when a replacement is required.
Photographs of the SV7.330/2, the Becker identification plate, motor nameplate, ports and surrounding installation can help us understand the original configuration.
Where the process duty is known, airflow and differential requirements can also be considered so that replacement selection is based on the actual application rather than simply physical appearance.
Protecting the Blower and Maintaining Airflow
A side channel blower operates as part of a complete air system. Filter condition, pipework, valves and process restrictions can therefore influence both performance and operating temperature.
Filtration
Correctly sized filters help prevent contamination while avoiding unnecessary inlet restriction.
Pressure Protection
A relief arrangement can help protect pressure applications against excessive discharge differential.
Vacuum Protection
Vacuum relief can be used where process conditions might excessively restrict the inlet.
System Fittings
Flexible connectors, silencers, valves and correctly sized pipework form part of a suitable installation.
Becker SV7.330/2 Service and Repair
A blower that becomes noisy, runs hotter than expected or no longer provides the required process performance should be assessed before continued operation causes additional damage.
Possible causes can include mechanical wear, motor problems, contaminated filtration or a change in system resistance. Checking the installation as well as the blower can therefore be important during diagnosis.
Vacuum Pumps UK can provide workshop assessment, servicing and repair support for Becker side channel blowers.
Service
Maintenance and inspection for industrial side channel blower installations.
Spares
Becker filters and replacement parts can be supplied through our sister company, VacAir Superstore, the UK’s leading pump spare parts specialist.
Becker SV7.330/2 FAQs
What is the airflow of the Becker SV7.330/2?
Nominal capacity is 180 m³/h at 50 Hz.
What vacuum does the SV7.330/2 produce?
Its maximum relative vacuum is -410 mbar.
What is the pressure rating?
Maximum relative positive pressure is +440 mbar.
What motor power is shown for the SV7.330/2?
The listed 50 Hz configuration uses a 4kW motor.
Can the SV7.330/2 be used for vacuum and pressure?
The blower has published performance for both duties: up to -410 mbar relative vacuum and +440 mbar relative positive pressure. Selection should be based upon the required airflow at the actual operating differential.
Do you support older Becker SV7 blowers?
Yes. Vacuum Pumps UK can assist with identification, replacement selection, servicing and workshop repair.
Looking for a Becker SV7.330/2?
Contact Vacuum Pumps UK for technical advice, replacement supply, service and repair.
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