Aerzen Vacuum-Blowers
Aerzen Positive Displacement Blowers {type Roots) have been manufactured since 18fi8 and today are highly developed standard production machines designed and adapted to find use in a wide variety of applications.roots vacuum pump
Fields of application
Conveying of air and neutral gases.
Vacuum from 10 mbar to approx. 300 mbar for mHV-blowers
available in 11 sizes for theoretical nominal suction volume flow from 250 to fi1.000 m3lh.
The max. admissible differential pressure depends on the thermal load.
(See performance diagrams/chart一page 3)
Design
blousing with an additional third soci<et on the in-
let side for the pre-inlet cooling. Due to the O-ring
seals the housing flanges are vacuum-tight, air-
cooled. Splash oil lubrication.
Shaft sealings
Conveying chamber by combined oil stinger- piston ring labyrinth seals. Driving shaft by double radial seal rings with grease barrier.
Direction of flow (viewed onto driving shaft)
vertical to the hottnm
Drive
Direct coupling with motor or via spur gear, narrowv-bell drive restricted to the smaller pressure dif-fereniials.
Mechanical load
directly coupled一profile 10.1 up to 12.5 mHV
up to 900 mbar
profile 13.f7 up to 17.15 mHV
up to 800 mbar
profile 18.17 up to 20.21 mHV
up to 600 mbar
with belt drive
applicable to all sizes up to a load of 250 mbar
Special material
Designs of the housing parts in nodular graphite cast iron EN-GJS-400-18U-LT {GGG 40.3)
roots vacuum pump