A foreline is a vacuum line between the pumps of a multistage vacuum system. No longer exclusively used by scientists in research, vacuum systems are used in numerous industries that include food production and the manufacturing of electronic components. A classic foreline is a hose or tube that connects a rotary vane pump to the outlet of an oil ...Found on http://en.wikipedia.org/wiki/Foreline
A vacuum line leading from a vacuum pump to the device or devices to be pumped.
Found on http://www-bdnew.fnal.gov/operations/accgloss/gloss.html
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