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Puma WP 1250 - 4500 B2/D2

Higher pumping speed and improved ultimate pressure: Puma WP vacuum boosters increase the performance of your vacuum system, making it more efficient and economical. Available in nine different sizes, Puma WP vacuum boosters can be designed to perfectly suit all low and medium vacuum applications in which the performance of the backing pump must be drastically increased or optimally adapted to the process. The Puma WP 1250 D2, WP 2000 D2 and WP 4500 B2 are the three largest vacuum boosters in this series.

Puma WP vacuum boosters are perfect booster pumps for all types of backing pump. When used in combination of backing pump and booster pump together, they are capable of increasing the pumping speed and ultimate pressure by a factor of 10. As a result, these pump combinations can generate a suction performance which would otherwise only be possible with a large number of backing pumps.

The Puma WP can be controlled using a pressure switch that activates the vacuum boosters of the backing pump if it has achieved the optimum pressure. Alternatively, the Puma WP is also available in versions that are controlled by frequency converters.

Puma WP vacuum boosters can be flanged directly onto the backing pump or at any other position on the system.

Puma – the economical performance optimiser.

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Technical specifications
Within the housing of Puma WP vacuum boosters, two pistons rotate synchronously. Thanks to the special profile of the rotating pistons and their precise manufacturing, they do not come into contact with each other or the housing. This makes it possible to pump a medium without the need of any operating fluids. The synchronous rotation of the two rolling pistons is driven by a pair of gear wheels located on the shaft ends in the gearbox and separated from the compression chamber. The vacuum boosters are driven by a directly flanged electric motor of efficiency class IE2.

Vacuum boosters from Busch
In addition to the Puma WP series, Busch also manufactures other vacuum boosters in a range of sizes. When used on vacuum systems, these cover virtually all applications in industry, as well as the research and science sectors.

Puma WP 1250 - 4500 B2/D2
Puma WP 1250 - 4500 B2/D2
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data Puma WP 1250 D2 Puma WP 2000 D2 Puma WP 4500 B2
Nominal pumping speed m³/h 50 Hz 1295 2020 4500
Max. pressure differential hPa (mbar) 50 Hz 50 50 30
Nominal motor rating kW 50 Hz 4.2 6.0 11.0
Nominal motor speed min-1 50 Hz 3000 3000 3000
Weight approx. kg 220 330 560
Dimensions (L x W x H) mm 1065 x 315 x 494 1135 x 390 x 605 1444 x 544 x 484
Gas inlet / outlet DN 160 ISO-F / DN 160 ISO-F DN 160 ISO-F / DN 160 ISO-F DN 250 ISO-F / DN 160 ISO-F


Puma WP 1250 - 4500 B2/D2

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