Becker SV 201/2 1.5 kW Side Channel Blower
The Becker SV 201/2 1.5 kW is a high-differential double-stage side channel blower combining 90 m³/h nominal 50 Hz airflow with strong vacuum and positive-pressure capability.
At 50 Hz it reaches -400 mbar relative vacuum and +420 mbar positive pressure. At 60 Hz the corresponding 1.8 kW motor increases nominal volume flow to 110 m³/h, while maximum vacuum remains -400 mbar and maximum pressure is +400 mbar.
The combination of relatively modest flow and substantial differential makes this version particularly useful where system resistance is high and pressure capability is more important than very large air volume.
Becker SV side channel blower supply and technical support from Vacuum Pumps UK.
Need an SV 201/2 1.5 kW?
Provide the existing blower details or tell us the airflow and working vacuum or pressure required.
Our team can help assess the correct blower duty.
Blower Type
Double Stage
side channel blower
Nominal Capacity
90 m³/h
at 50 Hz
Maximum Vacuum
-400 mbar
relative at 50 Hz
Maximum Pressure
+420 mbar
relative at 50 Hz
Motor Power
1.5 kW
50 Hz motor
High Differential from a Compact Double-Stage Blower
The 1.5 kW SV 201/2 is distinguished by the amount of differential it can generate from a blower with only 90 m³/h nominal 50 Hz capacity. Maximum relative vacuum reaches -400 mbar, while positive pressure reaches +420 mbar.
This performance makes it particularly relevant where the connected process creates substantial resistance. Applications such as pneumatic conveying, blast-air, vacuum handling and restrictive process machinery may require relatively modest airflow but considerably more pressure capability than a single-stage blower can provide.
The two-stage arrangement allows the airflow to receive additional energy as it passes through successive side channels. The result is increased differential without using rubbing vanes, pistons or other contacting compression elements in the process-air chamber.
Because no lubricating oil is required within the compression path, the blower provides oil-free airflow. The non-contact principle also reduces the number of routine wear components associated with the actual compression process.
At this level of differential, the surrounding installation deserves particular attention. Filter condition, pipework restriction, closed valves and process blockage can significantly alter blower load and operating temperature.
Becker SV 201/2 1.5 kW Technical Specifications
At 50 Hz the corresponding motor rating is 1.5 kW and nominal volume flow increases to 90 m³/h. Maximum relative vacuum remains -400 mbar and maximum positive pressure is +420 mbar.
| Frequency | Nominal Capacity | Maximum Vacuum | Maximum Pressure | Motor Power | Weight |
| 50 Hz | 90 m³/h | -400 mbar | +420 mbar | 1.5 kW | 28.5 kg |
| 60 Hz | 110 m³/h | -400 mbar | +400 mbar | 1.8 kW | 28.5 kg |
Vacuum and pressure figures are relative. Weight includes motor.
Key Features of the SV 201/2 1.5 kW
-400 mbar Vacuum
Strong suction capability allows the blower to operate on demanding vacuum systems with substantial inlet differential.
+420 mbar Pressure
High 50 Hz positive-pressure capability suits conveying, blast-air and restrictive process-air duties.
Two-Stage Compression
Successive side channel stages increase the available differential without using contacting compression components.
Oil-Free Process Air
No lubricating oil is required in the compression chamber, helping protect applications requiring clean airflow.
Compact High-Differential Duty
Combines a nominal 90 m³/h flow with pressure and vacuum capability around the 400 mbar differential level.
Integrated Silencers
Inlet and discharge silencers form part of the blower design to help reduce operating sound.
Applications Requiring Substantial Differential
The 1.5 kW SV 201/2 is particularly suitable where the application demands considerably more vacuum or pressure capability than would normally be associated with a 90 m³/h blower.
› Vacuum lifting and holding
› Vacuum fixing and clamping
› Printing and paper machinery
› Packaging and processing equipment
› Automated handling systems
› Pneumatic conveying
› Blast-air systems
› Aeration and agitation
› Industrial drying
› Restrictive process-air systems
SV 201/2 1.5 kW Supply and Duty Selection
Vacuum Pumps UK can assist with Becker SV 201/2 1.5 kW blower supply for replacement equipment, machine builders and new industrial vacuum or pressure systems.
For an existing blower, provide the complete Becker and motor nameplate information. This is especially useful with the SV 201/2 because the 1.1 kW and 1.5 kW versions share the same nominal 50 Hz airflow but have very different maximum operating differentials.
For a new application, tell us the required airflow at the normal working vacuum or positive pressure. On high-differential duties, pipework bore, filtration, relief protection and process restrictions can have a significant effect on the final operating point.
The maximum -400 and +420 mbar figures should therefore be considered as operating limits rather than substitutes for selecting the correct duty point.
Accessories for High-Differential SV 201/2 Installations
Where the blower operates against substantial differential, system accessories become particularly important. Correct filtration, pipework and relief protection help prevent unnecessary load and keep the blower within its intended operating range.
Inlet Filters
Appropriately sized filtration protects the air path while avoiding excessive restriction as the filter element loads.
Vacuum Relief Valves
Vacuum relief can protect the blower where suction-side restriction could push differential beyond the intended duty.
Pressure Relief Valves
Pressure relief is especially relevant on higher-pressure systems where blocked discharge pipework could rapidly increase differential.
Installation Accessories
Correct pipe bore, flexible connectors and non-return valves can help minimise avoidable system pressure losses.
Becker SV 201/2 1.5 kW Service, Repair and Spare Parts
The SV 201/2 uses non-contact compression, but operation at higher differential places greater importance on the condition of the motor, bearings and complete connected system.
A dirty filter, closed valve or restricted pipe run can increase differential and operating temperature. On a blower capable of approximately 400 mbar differential, system checks can therefore be just as important as inspection of the blower itself.
If an SV 201/2 becomes noisy, develops vibration, operates hotter than expected or loses performance, Vacuum Pumps UK can assist with fault diagnosis and workshop repair.
Blower Service
Technical support for maintenance, operating conditions and performance issues affecting Becker SV blowers.
Blower Repair
Workshop assessment for damaged, noisy or under-performing units, including bearing and motor faults.
Spare Parts
Becker spare parts and replacement filtration are available through our sister company VacAir Superstore.
Becker SV 201/2 1.5 kW Frequently Asked Questions
What airflow does the Becker SV 201/2 1.5 kW provide?
Nominal volume flow is 90 m³/h at 50 Hz and 110 m³/h at 60 Hz.
What maximum vacuum can it achieve?
Maximum relative vacuum is -400 mbar at both 50 Hz and 60 Hz.
What is the maximum positive pressure?
Maximum relative pressure is +420 mbar at 50 Hz and +400 mbar at 60 Hz.
How does the 1.5 kW SV 201/2 differ from the 1.1 kW version?
The nominal 50 Hz airflow remains 90 m³/h, but maximum vacuum increases from -280 to -400 mbar and maximum positive pressure increases from +260 to +420 mbar.
Why does a larger motor not increase the nominal 50 Hz airflow?
The additional motor power is principally used to allow the blower to operate against a greater vacuum or pressure differential rather than to increase its nominal free-air capacity.
Should the blower normally run at +420 mbar pressure?
No. The maximum pressure is an operating limit. The blower should be selected according to the airflow required at the application’s normal operating differential.
Can Vacuum Pumps UK help with supply or repair of an SV 201/2?
Yes. Send us the complete blower and motor nameplate details and we can assist with identification, supply, servicing, accessories or workshop repair.
Need a Becker SV 201/2 1.5 kW Side Channel Blower?
Contact Vacuum Pumps UK for Becker blower supply, technical selection, system accessories, servicing and repair.
Send us your existing blower details or the airflow and operating differential required by your system.
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