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The pump is equipped with a special anti-suckback device which
automatically isolates the vacuum system when the pump stops. This
avoids rises in pressure or oil flow in the vacuum system while air is
allowed back into the stator chambers.
The air entering the pump after the anti-suckback device has closed
prevents the oil in the casing from filling the stator chambers.
Vacuum Seals
A special feature of this pump is the low number of gaskets that are
employed.
The seals in the circuit are obtained by means of FKM gaskets.
Sealing of the rotor shaft is guaranteed by a rotating gasket with
dust-guard lip.
The suction flange and duct are sealed by mean of OR gaskets.
MS120 Single Stage Rotary Vane Pumps (G2571-64000) User Manual/X3702-90000 (A) 165/188
Technical Information
Vacuum Seals
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Chapitres
