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R 5 RE 0016 - 0063 B

Explosion pressure resistant RE series vacuum pumps are part of the Busch family of proven R 5 rotary vane vacuum pumps. They are designed to extract explosion-endangered gas/air and vapor/air mixtures. RE vacuum pumps are ATEX certified and are suitable for the extraction of almost all materials in the IIB3 explosion group including petrol vapor. 

Robustness and reliability

These are the two outstanding characteristics of R 5 rotary vane vacuum pumps, and the reason that proven Busch technology has long been established as the industry standard. Over two million R 5 vacuum pumps are in daily use worldwide. 

Operationally reliable and economical

Rotary vane technology has been continuously developed and optimized by Busch for 50 years, with a constant focus on both reliability and economy. 


R 5 vacuum pumps are characterized by high pumping speeds, even in low-pressure ranges, and consequently rapid evacuation times. They feature highly durable rotor vanes, ensuring a long service life. The specifically designed ATEX exhaust filters provide excellent oil separation. 

Test certificate
R 5 RE rotary vane vacuum pumps are certified with EC type-examination certificates in accordance with Directive 94/9/EC (ATEX95) for: EX II 1/2 G IIB3 T4, category 1 inside and T4 inside and outside the vacuum pump.

R 5 RE – the robust and explosion-proofed solution for vapour recovery.

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Technical specifications
The rotary vane technology permits a technically simple vacuum pump design. Recirculating oil lubrication, well-coordinated materials and state-of-the-art precision manufacturing ensures the consistently high vacuum level during continuous operation. An oil separator is included as standard equipment, ensuring clean and oil-free exhaust air by means of a sophisticated extractor system with an integrated oil return. A highly efficient flange-mounted standard motor drives the pump. 

Design characteristics
All components are resistant to explosion pressure. This includes flame arrestors, pressurized parts made from spheroidal graphite cast iron, an explosion-proof motor, electronic pressure monitoring and display and gas temperature monitoring. 

Accessories/technical options

  • Gas-ballast valve
  • Second temperature switch for frost protection mode
  • Anti-corrosion coating on the oil separator
  • Oil level monitoring
  • T3 motor and transmission (temperature class outside the vacuum pump is T3)

R 5 RE 0016 - 0063 B
R 5 RE 0016 - 0063 B

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Technical data RE 0016 B RE 0040 B RE 0063 B
Max. pumping speed ACFM 60 Hz 11 28 45
Ultimate pressure Torr 60 Hz 15 0.375 0.375
Nominal motor rating HP 60 Hz 0.7 3 3
Nominal motor speed RPM 60 Hz 1800 1800 1800
Sound level (ISO 2151) dB(A) 60 Hz 57 66 68
Oil capacity Qts. 60 Hz 1.1 2 2
Approximate weight Lbs. 60 Hz 117 236 267
Dimensions (L x W x H) inches 60 Hz 25 x 14 x 13 28 x 16 x 15 28 x 16 x 15
Gas inlet / Gas outlet 60 Hz G ¾" / G ¾" G 1 ¼" / G 1 ¼" G 1 ¼" / G 1 ¼"


R 5 RE 0016 - 0063 B

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