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R 5 RA 0165 - 0305 D

The R 5 RA 0165 - 0305 D belong to the Busch product family of proven R 5 rotary vane vacuum pumps. They have been specially designed for applications in the rough vacuum sector. Thanks to the optimized internal oil separation, these vacuum pumps guarantee clean exhaust under even the most difficult operating conditions. 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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Get in contact or +1 757 463 7800


Technical Specifications

R 5 RA 0165 - 0305 D

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 0165 – 0305 D are driven by a directly flange-mounted standard electric motor, with an efficiency class of IE3.

Dimensional Drawing R 5 RA 0165 - 0305 D
R 5 RA 0165 - 0305 D

Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data R 5 RA 0165 D R 5 RA 0205 D R 5 RA 0255 D R 5 RA 0305 D
Max. pumping speed ACFM 60 Hz 112 141 177 212
Ultimate pressure gas-ballast valve closed Torr 0.075 0.075 0.075 0.075*
Ultimate pressure gas-ballast valve open Torr - - - -
Nominal motor rating HP 60 Hz 7.5 7.5 10 12
Power consumption at 75 Torr HP 60 Hz 6.3 7 6 9.6
Power consumption at ultimate pressure HP 60 Hz 3.9 5.4 1800 6.8
Nominal motor speed RPM 60 Hz 1800 1800 8.8 1800
Sound level (ISO 2151) dB(A) 60 Hz 72 74 74 76
Oil capacity Qts. 7 7 7 7
Approximate weight Lbs. 435 435 520 43 1/8 x 23 ¼ x 16 ½
Dimensions (L x W x H) inches 40 x 23 ¼ x 16 ½ 40 x 23 ¼ x 16 ½ 43 1/8 x 23 ¼ x 16 ½ 43 1/8 x 23 ¼ x 16 ½*
Gas inlet / Gas outlet NPT 2" / 2" 2" / 2" 2" / 2" 2" / 2"
* values may vary slightly due to different motor versions

Accessories and Spare Parts

  • Gas-ballast valve
  • Various inlet filters
  • Energy recuperation kit with heat exchanger
  • Oil level switch
  • Temperature sensors
  • Filter pressure gauge
  • Vacuum pump oils for all applications
  • Vacuum regulation unit


Downloads

R 5 RA 0165 - 0305 D

Would you like to know more?
Contact us directly (Busch United States):
+1 757 463 7800 Get in contact

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