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silicon oil The dinesh high vacuum engineering diffusion pump fluid would be thermally stable, non-volatile, chemically inert, and non-toxic. Real diffusion pump fluids, on the other hand, represent compromises between these properties; no one fluid does it all. Inland offers a broad range of diffusion pump fluids including hydrocarbon, inert PFPE, polyphenyl ether, and silicone fluids for a wide range of applications. This selection ensures that we can supply the proper fluid for you application. The importance of proper diffusion pump fluid selection cannot be overemphasized. The benefits of selecting the proper fluid include: use of the most cost effective fluid for a given application better pumping speed reduced maintenance costs increased reliability A double-distilled hydrocarbon, such as dhve oil 20, will perform extremely well in less severe processes such as decorative coating, metallizing, sputtering, and applications with large gas loads. Optical coating, water processing, and other deposition processes require the excellent vapor pressure and low backstreaming characteristics of a silicone fluid. This ensures the fluid will not contaminate the workpieces of the process chamber. Silicone diffusion pump fluids are very durable, possessing excellent thermal and chemical stability. As part of dhve Vacuum’s ongoing research and development programs, we identified a series of diffusion pump fluids possessing the lubricity necessary to serve as premium mechanical pump fluids as well. Recommended vacuum oils for these applications include dhve 20, 30, and 40. These diffusion pump fluids have performed exceptionally well. Benefits stemming from the use of these diffusion pump fluids in mechanical pumps include: system cleanliness faster pumpdown cycles reduced maintenance requirements reduced total downtime The flexibility inherent in our line of diffusion pump fluids will allow the user to incorporate the same oil in both high vacuum and mechanical pump units. This advantage will allow the user to establish a homogenous vacuum system, which tends to eliminate the problems generally associated with the cross contamination of dissimilar fluids. dhve 20 and 30 have the added advantage of reclaimability, allowing the customer to reduce total expenditures and eliminate disposal problems.
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