Becker U4.100 SA/K Vacuum Pump
The Becker U4.100 SA/K is a 100 m³/h oil lubricated rotary vane vacuum pump used across a wide range of industrial vacuum applications.
The U4.100 series is no longer part of Becker’s current production range and was followed by later U5 models. However, spare parts and service support remain available from Vacuum Pumps UK, alongside certified refurbished pumps.
Support your existing Becker pump or ask us to assess a suitable replacement.
Existing Becker pump?
Send us the pump nameplate and application details for support, repair or replacement advice.
Pump Type
Oil Lubricated
rotary vane
Capacity
100 / 117 m³/h
50Hz / 60Hz
Maximum Vacuum
3.0 mbar
absolute
Motor
2.4 / 3.0 kW
50Hz / 60Hz
Becker U4.100 SA/K Overview
The Becker U4.100 SA/K uses oil lubricated rotary vane technology to provide stable vacuum performance for continuous industrial machinery.
With 100 m³/h nominal capacity at 50Hz, the U4.100 SA/K was frequently selected where a robust medium-capacity pump was required rather than a particularly deep final vacuum.
These pumps are no longer current Becker production models, but many remain in daily service. For that reason, maintenance, parts availability, repair and overhaul remain an important part of the support offered for the U4 range.
Where replacement becomes necessary, Vacuum Pumps UK can assess the original duty and compare current Becker options, a suitable DVP LC pump or another appropriate solution.
Becker U4.100 SA/K Technical Specifications
| Model | Capacity m³/h 50Hz / 60Hz |
Maximum Vacuum mbar abs. |
Motor kW 50Hz / 60Hz |
| Becker U4.100 SA/K | 100 / 117 | 3.0 / 3.0 | 2.4 / 3.0 |
Typical Applications
DVP LC106
106 m³/h at 50Hz
Current DVP Alternative
Consider the DVP LC106
The DVP LC106 provides a modest capacity increase while remaining close enough in size and duty to be considered for many U4.100 replacement applications.
The DVP LC106 provides 106 / 127 m³/h at 50Hz / 60Hz, compared with 100 / 117 m³/h for the Becker pump.
Its 0.1 mbar absolute final pressure is substantially deeper than the 3.0 mbar absolute rating of the Becker SA/K version.
Its motor rating is 2.2 / 2.7 kW. Dimensions, connection positions, motor voltage, pipework and the actual operating duty must still be checked before any replacement is selected.
Vacuum Pumps UK is the UK and Ireland Master Agent for DVP Vacuum Technology.
Becker U4.100 SA/K and DVP LC106 Comparison
The table below provides a quick technical comparison. Actual replacement suitability should always be checked against the machine and process requirements.
| Model | Capacity m³/h 50Hz / 60Hz |
Final Pressure mbar abs. |
Motor kW 50Hz / 60Hz |
| Becker U4.100 SA/K | 100 / 117 | 3.0 / 3.0 | 2.4 / 3.0 |
| DVP LC106 | 106 / 127 | 0.1 | 2.2 / 2.7 |
Becker U4.100 SA/K Spare Parts, Oil Separators, Oil, Service and Repair
The Becker U4 range may no longer be current production, but many pumps are still operating every day and can remain economical to maintain for years. VacAir Superstore supports these installations with consumables, replacement parts, routine servicing and full workshop repair.
Keeping an existing U4 pump in reliable service can often be the most practical option where the machine, pipework and production process are already built around it.
Support is available for reduced vacuum, exhaust oil mist, oil leaks, overheating, unusual noise, poor starting, contamination and internal wear. Where repair is not economical, Vacuum Pumps UK can then help assess a replacement.
Spare Parts
Replacement service and repair components for the Becker U4.100 SA/K, subject to pump version and availability. We can assist with seals, gaskets, filters and other mechanical parts required to keep existing pumps operating.
Oil Separators
Exhaust oil separators are a key maintenance item. Saturated or damaged separators can cause visible oil mist, increased exhaust restriction and unnecessary oil consumption.
Vacuum Pump Oil
Correct oil helps provide lubrication, sealing and temperature control. VacAir can advise on suitable vacuum pump oil for routine servicing, oil changes and workshop repairs.
Service & Maintenance
Planned maintenance can include oil and filter changes, separator replacement, inspection, cleaning and performance checks to help prevent production stoppages and maintain vacuum performance.
Repair & Overhaul
If an older U4 pump has lost performance or suffered internal wear, VacAir can inspect it and advise whether a repair or complete workshop overhaul offers a sensible alternative to replacement.
Becker U4.100 SA/K Frequently Asked Questions
Is the Becker U4.100 SA/K still a current Becker model?
No. The U4 series is no longer part of Becker’s current production range and was followed by later O5 or U5 models.
Can spare parts and service still be supplied?
Yes. Many U4 pumps remain in service. Vacuum Pumps UK and VacAir can assist with spare parts, oil separators, oil, servicing, repairs and refurbished pumps.
What is the nominal capacity?
The stated capacity is 100 m³/h at 50Hz and 117 m³/h at 60Hz.
What vacuum level does this version achieve?
The stated maximum vacuum is 3.0 mbar absolute.
What DVP alternative can be considered?
The DVP LC106 can be assessed as a current oil lubricated rotary vane alternative, subject to application and installation checks.
Does the DVP pump provide a deeper vacuum?
Yes. The DVP LC106 is rated to 0.1 mbar absolute, compared with 3.0 mbar absolute for this Becker version.
Need Support for a Becker U4.100 SA/K?
Contact Vacuum Pumps UK for service support, replacement pump advice, refurbished pumps and DVP alternatives.
Send us the pump nameplate and application details and we will advise on the most suitable option.
