Becker SV 400/1 3.0 kW Side Channel Blower
The Becker SV 400/1 3.0 kW is a single-stage side channel blower providing a substantial 390 m³/h nominal airflow for industrial vacuum and positive-pressure applications.
At 50 Hz the blower is rated to a maximum relative vacuum of -210 mbar and maximum positive pressure of +200 mbar. At 60 Hz, the corresponding 3.60 kW motor increases nominal flow to 470 m³/h, with maximum vacuum of -190 mbar and pressure of +180 mbar.
This configuration is particularly suited to machinery where a high volume of air is required but the process does not impose the higher differential pressure associated with the larger SV 400/1 motor options.
Becker vacuum pumps and side channel blowers, technical advice and support from Vacuum Pumps UK.
Need an SV 400/1 3.00 kW?
Send us the complete Becker blower and motor details, or tell us the airflow and operating duty required by your process.
Our team can help confirm the correct version and provide price and availability.
Blower Type
Single Stage
side channel blower
Nominal Capacity
390 m³/h
at 50 Hz
Maximum Vacuum
-210 mbar
relative at 50 Hz
Maximum Pressure
+200 mbar
relative at 50 Hz
Motor Power
3.00 kW
50 Hz motor
High-Volume Oil-Free Airflow
The SV 400/1 generates vacuum or positive pressure by transferring energy from a rotating impeller into the air moving through an annular side channel. This turbo-dynamic principle provides smooth airflow without the sliding compression components used in rotary vane equipment.
Because the impeller operates without mechanical contact inside the compression chamber, lubricating oil is not required in the process air path. This makes the blower suitable for industrial duties where clean, oil-free air is beneficial.
In the 3.00 kW configuration, the SV 400/1 provides 390 m³/h nominal capacity at 50 Hz. Its maximum vacuum and pressure limits are lower than those of the 4.00 and 5.50 kW versions, so its strength is high airflow at moderate system resistance rather than maximum differential pressure.
That distinction matters when identifying an existing SV 400/1. The basic blower designation and nominal flow may be the same, but changing the motor configuration changes the operating envelope considerably.
Integrated inlet and discharge silencers, sealed bearings and a pedestal with vibration isolators help make the unit straightforward to incorporate into industrial machinery and process systems.
Becker SV 400/1 3.00 kW Technical Specifications
The 60 Hz configuration uses a 3.60 kW motor and increases nominal volume flow to 470 m³/h. When replacing an existing machine, both motor rating and electrical frequency should be checked.
| Frequency | Nominal Capacity | Maximum Vacuum | Maximum Pressure | Motor Power | Weight |
| 50 Hz | 390 m³/h | -210 mbar | +200 mbar | 3.00 kW | 52.5 kg |
| 60 Hz | 470 m³/h | -190 mbar | +180 mbar | 3.60 kW | 52.5 kg |
Vacuum and pressure figures are relative. Weight includes motor.
Key Features of the SV 400/1 3.00 kW
390 m³/h Capacity
Provides substantial nominal airflow for production machinery, handling equipment and process systems where air volume is a primary requirement.
Oil-Free Air Path
The blower does not require lubricating oil in the compression chamber, helping provide clean airflow for the connected process.
Non-Contact Compression
The impeller moves air without rubbing against the side channel, reducing wear within the compression mechanism.
Integrated Silencing
Built-in inlet and discharge silencers help manage operating sound and reduce the number of separate installation components.
Sealed Bearings
Sealed bearing construction removes routine bearing greasing from the normal maintenance schedule.
Vacuum or Pressure Use
The blower can be installed for suction or positive-pressure duty according to the requirements of the machine or process.
Typical SV 400/1 3.00 kW Applications
The combination of high airflow and moderate differential pressure makes the 3.00 kW SV 400/1 suitable for many industrial air-moving duties.
› Printing press sheet transport
› Paper feeding and separation
› Packaging machinery
› Vacuum handling
› Automated component movement
› Cooling air
› Industrial drying
› Aeration
› Light pneumatic conveying
› General mechanical engineering
Becker SV 400/1 Supply and Replacement Support
Vacuum Pumps UK can assist with Becker SV 400/1 requirements for production machinery, planned maintenance, replacement installations and new projects.
When identifying an existing blower, send the complete model and motor nameplate details. The 3.00, 4.00 and 5.50 kW versions share the same nominal airflow, so motor power is essential when determining the correct performance configuration.
For a new application, provide the airflow required at the actual operating vacuum or pressure. Pipework, filters, valves and other restrictions all influence the duty seen by the blower and should be considered during selection.
Becker SV 400/1 Accessories
A correctly configured airflow system can protect the blower and help maintain the intended operating point. Filtration, relief protection and properly sized connections should therefore be considered alongside the blower itself.
Inlet Filters
Suitable filtration helps prevent dust, fibres and other contaminants reaching the impeller and side channel.
Vacuum Relief Valves
Vacuum relief can admit additional air if inlet resistance rises beyond the intended operating range.
Pressure Relief Valves
Pressure relief helps protect against excessive discharge back pressure caused by restrictions or changing process conditions.
Installation Accessories
Flexible connectors, non-return valves, additional silencers and suitable pipework fittings can be selected around the installation.
Becker SV 400/1 Service, Repair and Spare Parts
The SV 400/1 has a non-contact compression mechanism and relatively modest routine maintenance requirements, but bearings, motors and the surrounding air system remain important to reliable operation.
A drop in airflow, unusual noise, vibration or increased temperature can indicate a blower fault or an external problem such as a blocked filter, restricted pipework or incorrect valve setting.
Vacuum Pumps UK can assist with inspection, fault diagnosis, servicing and workshop repair of Becker side channel blowers.
Blower Service
Technical support for installed Becker SV blowers, including maintenance and investigation of changing performance.
Blower Repair
Workshop inspection and repair assessment for noisy, damaged or poorly performing side channel blowers.
Spare Parts
Replacement filters and Becker spare parts are available through our sister company VacAir Superstore.
Becker SV 400/1 3.00 kW Frequently Asked Questions
What is the capacity of the Becker SV 400/1 3.00 kW?
Nominal flow is 390 m³/h at 50 Hz and 470 m³/h at 60 Hz.
What maximum vacuum can it produce?
Maximum relative vacuum is -210 mbar at 50 Hz and -190 mbar at 60 Hz.
What positive pressure can the 3.00 kW version provide?
Maximum relative pressure is +200 mbar at 50 Hz and +180 mbar at 60 Hz.
Does the SV 400/1 use oil?
No lubricating oil is required in the compression chamber, so the process airflow is oil-free.
Why are there several SV 400/1 motor sizes?
The different motors allow the same blower platform to operate against different vacuum and pressure differentials. Nominal flow alone does not identify the complete performance specification.
Is the 3.00 kW version suitable where airflow is the main requirement?
Yes. It is particularly relevant where high airflow is needed but system resistance is relatively moderate.
How do I identify an existing SV 400/1?
Check the blower and motor nameplates for the model, motor power, voltage and frequency. You can also send photographs to Vacuum Pumps UK for assistance.
Can VPUK service and repair Becker SV blowers?
Yes. We can assist with servicing, inspection, diagnosis and workshop repair.
Need a Becker SV 400/1 3.00 kW Side Channel Blower?
Contact Vacuum Pumps UK for blower supply, application support, accessories, servicing and repair.
Send us the existing nameplate or tell us the airflow and operating duty you need.
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