Mechanical seals for pumps - EN
The mechanics of the pump design inherently dictate the pressure range at which the pump is able to operate. The vacuum industry recognizes the following pressure regimes: Coarse Vacuum: 760 - 1 Torr ; Rough Vacuum: 1 Torr - 10-3 Torr; High Vacuum: 10-4 - 10-8 Torr; Ultra High Vacuum: 10-9 - 10-12 Tor
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