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From Edwards Vacuum
The goal of a single _dry_ pump capable of reaching high vacuum and itself exhausting to atmospheric pressure has long existed in the vacuum field. The development of a single-shaft, high-speed pump EPX _second generation_ mechanism has gone some considerable way to achieving this goal. The pump exploits molecular drag and a fluid dynamic mechanism and is discussed in terms of the theory of operation, internal flow mechanisms and the technology innovations enabling the mechanism to be produced in large volume quantities. Product Announcements
Topics of Interest
The hydraulic geometry or shape of a pump stage can in principle be chosen for given values
of the other independent variables in Eqs. 34 or 35 so as to optimize the resulting performance;
for...
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Equipment used to generate vacuum, as noted earlier, is similar to air compressors. It's even possible to generate compressed air or vacuum with the same machine, depending on how it is installed.
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PUMP DRIVE SHAFT SYSTEMS
Pump drive system arrangements may be classified in one of two categories: those that are close-coupled, having a shaft separation of a fraction of an inch (not to be...
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Vacuum degassing (VD) and vacuum oxygen decarburisation (VOD) are the main processes in secondary steel making. The large volumes of dissolved contaminant gases arising and the generation of metallic...
(Read More)
Selecting the right vacuum pumping system for your heat treat application is a complex and challenging task with the realization that no single type of vacuum pump is likely to provide all the...
(Read More)
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