High-compression turbopumps saves up to 90% of energy
Offering a compression ratio greater than 2·107 for hydrogen, the turbopumps feature advanced rotor designs, delivering an exceptionally high critical backing pressure capability of 22hPa. This allows the pumps to reach ultra-high vacuum, even when operating with high backing pressures that occur in combination with diaphragm pumps. Due to the high compression ratio, a low residual gas spectrum, which is desirable for certain mass spectrometry applications, is created in the chamber.
An integrated ‘intermittent mode’ function enables the HiPace H to switch a connected backing pump on only if the backing pressure is no longer sufficient. This reduces the energy consumption of the entire vacuum system by up to 90%, according to the manufacturer. The hybrid bearing, combining a ceramic ball bearing on the fore-vacuum side with a permanent-magnet radial bearing, proves to be particularly robust, ensuring a long service life with a service interval of more than four years.
Pfeiffer Vacuum – www.pfeiffer-vacuum.com
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