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Instructions for Use
Connection of the Fore-Vacuum Pump
The foreline connection should be made using the KF 16 NW flange provided on the
TwisTorr 305 FSQ & 305 SF. The connection to the foreline pump can be made by a
vacuum rated hose or pipe. If a rigid pipe is used, any vibration generated by the
mechanical pump must be damped through the use of bellows.
The TwisTorr 305 FSQ & 305 SF is characterized by its high compression ratio also
NOTE
for oil vapors. When using a mechanical oil-sealed pump, it is advisable to install a
suitable trap between the turbopump and the fore-vacuum pump in order to prevent
back streaming oil or particulate from dry pumps.
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Agilent TwisTorr 305 FSQ & 305 SF User Manual
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