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R 5 RA 0155 A

The R 5 RA 0155 A belongs to the Busch product family of proven R 5 rotary vane vacuum pumps. It has been specially designed for use in continuous operation in the rough vacuum range, for pumping of large volumes and when working at ultimate pressure. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our R 5 RA series type page.

Series Type Page R 5 RA
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Contact us directly (Busch India):
Get in contact or +91 (0)124 475 1300

R 5 – proven and reliable. Over 3 million pumps in operation worldwide.

Technical Specification

R 5 RA 0155 A

Rotary vane technology is synonymous with a robust, functional construction. R 5 rotary vane vacuum pumps are characterized by an optimum design and perfectly synchronized components and materials. The constantly high vacuum level in continuous operation is ensured by recirculating oil lubrication and state-of-the-art precision manufacturing.

A sophisticated oil separator ensures efficient use of oil. When fitted with a gas-ballast valve (optional), even large quantities of vapour can be extracted. A non-return valve in the inlet flange prevents the pumped medium from flowing back into the vacuum process after the vacuum pump is switched off. The R 5 RA 0155 A is driven by a directly flange-mounted standard electric motor, with an efficiency class of IE3.

Dimensional Drawing R 5 RA 0155 A
R 5 RA 0155 A

Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed <p> Air at 20 °C. Tolerance: ± 10%</p>
Technical data R 5 RA 0155 A
Nominal pumping speed m3/h 50 Hz 150
Ultimate pressure hPa (mbar) 0.1
Nominal motor rating kW 50 Hz 4.0
Power consumption at 100 mbar kWh 50 Hz 3.2
Power consumption at ultimate pressure kWh 50 Hz 2.1
Nominal motor speed min-1 50 Hz 1500
Noise level (ISO 2151) dB(A) 50 Hz 70
Oil capacity l 3.5
Weight approx. kg 110*
Dimensions (L x W x H) mm 765 x 470 x 340*
Gas inlet / outlet G 2" / G 2"
* values may vary slightly due to different motor versions

Accessories and Spare Parts

Optimum Performance and Reliability

  • Gas-ballast valve
  • Various inlet filters
  • Adapter flange for vacuum booster
  • Filter pressure gauge
  • Vacuum pump oils for all applications
  • Oil level switch
  • Temperature sensors
  • Starter unit
  • Oxygen version


R 5 RA 0155 A

Want to know more?
Contact us directly (Busch India):
Get in contact or +91 (0)124 475 1300

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