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Puma WY 2000 / 4500 C

Higher pumping speed and improved ultimate pressure: Puma WY vacuum boosters increase the performance of your vacuum system, making it more efficient and economical. Available in six different sizes, Puma WY vacuum boosters can be designed to perfectly suit  all medium and high vacuum applicationsin which the performance of the backing pump must be drastically increased or optimally adapted to the process.
The Puma WY 2000 B to WY 4500 B are the two largest vacuum boosters in this series.

Ideal for difficult processes
Puma WY vacuum boosters are perfect for COBRA screw vacuum pumps and other backing pumps.
They are excellently suited to pump aggressive or toxic gases through the standard water-cooled canned motor. Due to the absence of external passages, it enables absolute leak tightness to the atmosphere.

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

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


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

Technical specifications
Within the housing of Puma WY vacuum boosters, two lobes rotate synchronously. Due to the special profile of the rotating lobes and their precise manufacturing, they do not come into contact with each other or the housing. This allows for pumping without any operating fluids. The synchronous rotation of the two lobes is driven by a pair of gear wheels located on the shaft ends in the gearbox, and separated from the compression chamber. In combination with a COBRA screw vacuum pump that is also driven by a canned motor, Puma WY vacuum boosters are used in many applications in the semiconductor industry, the manufacture of photovoltaic modules and flat-screen displays, silicon production and surface treatment.

Vacuum boosters from Busch
In addition to the Puma WY series, Busch also manufactures other vacuum boosters series in different sizes and versions that are suitable for almost all applications. Contact a knowledgeable Busch application specialist for additional information.


Puma WY 2000/4500 B
Puma WY 2000/4500 B
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data Puma WY 2000 C Puma WY 4500 C
Max. pumping speed ACFM 60 Hz 1003 2530
Pumping speed 60 Hz *
Maximum pressure differential Torr 60 Hz 40 25
Nominal motor rating kW (HP) 60 Hz 6.6 (8.9) 13.5 (18.1)
Nominal motor speed RPM 60 Hz 3600 3600
Approximate weight Lbs. 530 1280
Dimensions (L x W x H) inches 36 1/2 x 15 3/8 x 12 5/8 50 x 21 3/8 x 16 7/8
Gas inlet / Gas outlet ISO-F DN 160 / DN 100 DN 250 / DN 160
Nominal displacement CFM 60 Hz 1435 3180*
* with COBRA NS 0600 as backing pump

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Puma WY 2000 / 4500 C

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