Outdated models of the Becker U 4 series

Here you will find the U 4.70 to U 4.300 oil-lubricated rotary vane vacuum pumps that are no longer part of the current Becker range. Becker has moved their documents to its archive; the Becker product range catalogue 01/2026 lists only the U 4.400 and the U 4.630 in the U 4 series. Becker names no successor. Each model is listed with the key technical data.

Models

U 4.70Current alternative: U 5.65 (XL K)Pumping speed 63 m³/h 50 Hz74 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 2.4 kW 50 Hz3 kW 60 Hz
U 4.100Current alternative: U 5.101Pumping speed 100 m³/h 50 Hz117 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 2.4 kW 50 Hz3 kW 60 Hz
U 4.165Current alternative: U 5.166Pumping speed 162 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 4 kW 50 Hz4.8 kW 60 Hz
U 4.190Current alternative: U 5.201Pumping speed 190 m³/h 50 Hz223 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 Hz
Becker U 4.250 vacuum pumpU 4.250Current alternatives: U 5.301, U 5.201Pumping speed 244 m³/h 50 Hz276 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 7.5 kW 50 Hz9 kW 60 Hz
U 4.300Current alternative: U 5.301Pumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 7.5 kW 50 Hz9 kW 60 Hz

Service and advice

For pumps of these models in service, Ehrler & Beck supports you with service and with the selection of a current model. All outdated models from the manufacturer can be found under Outdated Becker models; your enquiry reaches us through the contact form.