Description
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GA01423_002_C0 - 10/2016 - © Leybold
1 Description
1.1 Design and Operation
The SCROLLVAC vacuum pumps are oil-free vacuum pumps. Each
SCROLLVAC consists of two Archimedes spirals offset within each other by
180 °. Thus several crescent-shaped pockets of different sizes are created.
With the aid of an eccentric drive, the second spiral orbits about the fixed
spiral thereby reducing, respectively increasing the volume of the pockets
whereby the gases are conveyed from outside to inside thereby being com-
pressed.
Fig. 1.1 Component designations (SC 5 D)
SC 5 D
Inlet
Fan
Motor
ON /OFF switch under the cover
Operating hours counter
Fixed scroll (1)
Orbiting scroll
Venting connection
Fixed scroll (2)
Fan
Fan cover
Inlet flange
(DN 25)
Fan cover
Venting connection
Exhaust flange
(DN 16)
Carrying handle
Motor
Direction indicating arrow
Motor terminal box