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R 5 PB 0004 / 0008 C

The PB range consists of very compact and highly efficient rotary vane vacuum pumps of the proven R 5 series. These pumps are ideal for use in applications and machines where space is limited.

With a sturdy design and non-corrosive construction, the well-proven rotary vane principle and oil-recirculation ensure high reliability.

Application orientated
This is due to an internal oil separator. Vertical and horizontal inlet connections are also available (PB 0004 B).

Environmentally friendly
These pumps can be used in any environment due to the air-cooling, internal oil recirculation, integral oil separator for oil-free exhaust air, low vibration and low noise level.

Easy to service
Due to the compact design, these pumps are easy to service and require minimal maintenance.

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

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Technical specifications
These vacuum pumps work in accordance with the rotary vane principle. 
An eccentrically installed rotor rotates in the cylinder. The centrifugal force of the rotation pushes the vanes, which glide in slots in the rotor, towards the wall of the cylinder. The vanes separate the sickle-shaped space between the rotor and cylinder into chambers. When the chambers are connected with the inlet channel, gas is sucked in, compressed by the next rotation, and then pushed into the oil separator. The differential pressure constantly causes oil to be passed into the compression chambers. The oil and the process gas are then discharged into the oil separator and they are separated from the exhaust air by gravity and the exhaust filter. The oil collects on the bottom of the oil mist separator and is then sucked into the compression chamber again (recirculation).

R 5 PB 0004/0008 C
R 5 PB 0004/0008 C
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data PB 0004 C PB 0008 C
Max. pumping speed ACFM 60 Hz 2.8 5.7
Ultimate pressure Torr 60 Hz 1.5 1.5
Nominal motor rating HP 60 Hz 0.16 0.60
Nominal motor speed RPM 60 Hz 3600 3600
Sound level (ISO 2151) dB(A) 60 Hz 59 64
Approximate weight Lbs. 12 24
Dimensions (L x W x H) inches 9.1 x 5.2 x 5.6 13.0 x 6.5 x 6.0
Gas inlet / Gas outlet ISO-F G ¼" G ⅜"


R 5 PB 0004 / 0008 C

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