Becker SV5.250/2 2.2kW Side Channel Blower
The Becker SV5.250/2 is a two-stage side channel blower delivering 130 m³/h nominal airflow from a 2.2kW motor, with strong and evenly balanced vacuum and pressure capability.
At 50 Hz, maximum relative vacuum reaches -400 mbar while maximum positive pressure is +400 mbar. This symmetrical performance makes the SV5.250/2 particularly useful where a machine or process requires substantial differential on either the suction or pressure side.
Its two-stage regenerative compression system operates without lubricating oil in the process-air chamber and without rubbing carbon vanes.
Becker side channel blower supply and technical support from Vacuum Pumps UK.
Need an SV5.250/2?
Send us the details from your existing blower or the required airflow and operating vacuum or pressure for a new application.
Vacuum Pumps UK can assist with Becker blower selection and supply.
Blower Type
Two Stage
side channel blower
Nominal Capacity
130 m³/h
at 50 Hz
Maximum Vacuum
-400 mbar
relative at 50 Hz
Maximum Pressure
+400 mbar
relative at 50 Hz
Motor Power
2.2kW
50 Hz motor
Balanced -400 mbar Vacuum and +400 mbar Pressure
The defining characteristic of the Becker SV5.250/2 is the combination of 130 m³/h nominal airflow with an equal maximum differential in vacuum and pressure operation. At 50 Hz the blower is rated to -400 mbar relative vacuum and +400 mbar relative positive pressure.
This balanced performance makes the SV5.250/2 relevant to machinery where the same basic blower technology may be required for suction or blowing duties, as well as processes where substantial system resistance must be overcome.
The /2 configuration uses two regenerative compression stages. Air entering the blower receives energy from the rotating impeller system and passes through successive side channel stages, allowing a greater differential to be developed before discharge.
Because compression is non-contact, there are no carbon vanes rubbing against a cylinder wall and no lubricating oil is required within the process-air chamber.
Selection should always consider the actual working point. The nominal 130 m³/h capacity and maximum differential figures describe the blower’s performance envelope; available airflow changes as the system vacuum or pressure increases.
Becker SV5.250/2 Technical Specification
The 2.2kW SV5.250/2 provides 130 m³/h nominal capacity with maximum relative vacuum and pressure limits of -400 mbar and +400 mbar respectively at 50 Hz.
| Model | Stage | Nominal Capacity | Maximum Vacuum | Maximum Pressure | Motor Power |
| SV5.250/2 | Two Stage | 130 m³/h | -400 mbar | +400 mbar | 2.2kW |
SV5.250/2 Performance and Design
130 m³/h Capacity
Useful airflow for industrial machinery requiring more than a small-volume vacuum or pressure supply.
-400 mbar Vacuum
Strong suction differential for vacuum handling, process and conveying duties.
+400 mbar Pressure
Equally strong positive-pressure capability for demanding blowing and conveying systems.
Two-Stage Design
Successive regenerative stages allow substantial differential to be developed from the side channel process.
2.2kW Motor
A practical motor configuration combining moderate airflow with high differential capability.
Oil-Free Compression
No lubricating oil is required within the blower’s process-air compression chamber.
Applications for the SV5.250/2
The balanced -400/+400 mbar capability makes this model suitable for a broad range of industrial vacuum and positive-pressure systems where useful airflow must be maintained against significant resistance.
› Packaging machinery
› Printing and paper machinery
› Process vacuum systems
› Aeration systems
› Drying and cooling
› Industrial process air
Becker SV5.250/2 Supply and Replacement
Vacuum Pumps UK can assist with replacement of an existing SV5.250/2 or selection of a side channel blower for a new installation.
For an existing machine, send us the blower and motor nameplate details together with photographs where possible. Establishing the complete configuration is important when matching an existing blower to the requirements of the machinery.
For a new system, airflow should be considered at the intended operating differential rather than from nominal capacity alone. Pipe diameter, filtration, valves, silencers and process resistance can all influence the final operating point.
Becker SV5.250/2 Accessories
Correctly sized accessories help maintain airflow and protect the blower from contamination or excessive vacuum and pressure differential.
Inlet Filtration
Protects the air path against contamination while allowing sufficient airflow into the blower.
Vacuum Relief
Can limit excessive inlet differential where system restriction changes during operation.
Pressure Relief
Helps prevent excessive positive pressure if discharge resistance becomes too high.
Installation Components
Silencers, flexible connectors, valves and associated components can be selected to suit the installation.
Becker SV5.250/2 Service, Repair and Spare Parts
The regenerative compression mechanism is non-contact, but reliable operation still depends upon clean filtration, correct system resistance, bearing condition and the electric motor.
Changes in airflow, operating temperature, noise or vibration can indicate a blower or system problem and should be investigated.
Vacuum Pumps UK can assist with Becker side channel blower inspection, servicing, fault diagnosis and workshop repair.
Blower Service
Maintenance and technical support for Becker SV side channel blowers.
Blower Repair
Workshop inspection and repair assessment for damaged or under-performing blowers.
Spare Parts
Replacement filters and Becker spare parts are available through our sister company VacAir Superstore.
Becker SV5.250/2 Frequently Asked Questions
What is the capacity of the Becker SV5.250/2?
The nominal capacity is 130 m³/h at 50 Hz.
What maximum vacuum can the SV5.250/2 achieve?
Maximum relative vacuum is -400 mbar.
What maximum positive pressure does it provide?
Maximum relative positive pressure is +400 mbar.
What motor power does the SV5.250/2 use?
This configuration uses a 2.2kW motor.
Is the SV5.250/2 suitable for both vacuum and pressure operation?
Its maximum ratings are evenly balanced at -400 mbar relative vacuum and +400 mbar relative pressure, making it suitable for consideration for either type of duty when correctly selected for the required operating point.
Can Vacuum Pumps UK help replace an SV5.250/2?
Yes. Send us the existing blower and motor details and we can assist with identification and replacement selection.
Need a Becker SV5.250/2 2.2kW Side Channel Blower?
Contact Vacuum Pumps UK for blower supply, technical advice, servicing and repair.
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