Positive Displacement Blowers
Negative pressure stage
with pre-inlet cooling
AERZEN Positive Displacement Blowers have been manufactured since 1868 and today we are highly developed standard production machines designed and adapted to find use in a wide variety of applications and specialise in air and neutral gases.
Volume flow:
60
to
50,000
m3/h
Differential pressure (Δp):
-800
to
0
mbar
Medium:
Air,
Neutral Gases
Conveying:
Oil-free
The advantages of AERZEN Negative Pressure Stage at a glance:
- Housing with additional third socket on suction side for pre-inlet cooling
- The conveying chamber is sealed by means of an oil slinger in combination with 4 piston ring labyrinth seals with a central vent chamber.
- Proven 2-lobe or 3-lobe blower technology for plant engineering for forced conveyance at extreme negative pressure up to 80% vacuum. Oil-free and extremely robust. Belt or direct drive version. For stationary and vehicle application.
Customized solutions for vacuum applications.
AERZEN Positive Displacement Blowers (of the "Roots" type design) have been manufactured since 1868 and today we are highly developed standard production machines designed and adapted to find use in a wide variety of applications.
Thereby AERZEN offers many customized solutions for the most diverse applications:
Applications:
- Pneumatic conveyance of bulk materials
- Aeration
- Filter backwashing
- Gas conveyance
- Degassing
- Dust removal
- Vacuum production
- Biogas treatment
- Air separation plant
- and many others
Industries:
- Chemical and process technology
- Power plants
- Cement and lime
- Foodstuffs
- Paper
- and many others
US Units
No- Type of technology
- Positive Displacement Blowers
- Differential pressure (Δp)
- -800 to 0 mbar
- Volume flow
- 60 to 50,000 m3/h
- Medium
- Air, Neutral Gases
- Conveying
- Oil-free
For conveying air
Proven 2-lobe or 3-lobe blower technology for plant engineering for forced conveyance at extreme negative pressure up to 80% vacuum. Oil-free and extremely robust. Belt or direct drive version. For stationary and vehicle application.
Design
- Housing with additional third socket on suction side for pre-inlet cooling
- series GM . . . Sm with lube oil supply by splash lubrication. 6 sizes, intake volume flow 60 up to 16.000 m³/h
series GM . . . Lm with central oil circulating lubrication. 3 sizes, intake volume flow 16.000 up to 50.000 m³/h for an absolute pressure at inlet of approx. 400 mbar against atmosphere - for an absolute pressure at inlet of approx. 200 mbar against atmosphere.
Shaft sealings
The conveying chamber is sealed by means of an oil slinger in combination with 4 piston ring labyrinth seals with a central vent chamber.
The drive shaft is sealed by double radial seal rings with grease barrier.
Direction of flow
Vertical, from top to bottom.
Drive
Direct coupling with motor or via spur gear resp. narrow v-belt drive.
