Type Positive displacement blowers
Media blown Air
Neutral gases
Operation Oil free
Minimum flow capacity (m3/h) 30
Maximum flow capacity (m3/h) 65,000
Maximum pressure (bar) 1000 mbar
Minimum pressure (bar) -500 mbar
 
 
 

Robust 3-lobe blower stage for plant engineering. Suitable for a wide range of applications. Available as standard in 22 sizes (GM 3 S to GM 1080 L).

Design

Blower with 3-lobe rotors and two cast-in preinlet channels in the discharge-sided cylinder part to minimze the sound by pulsation reduction. Housing ribbed and air-cooled. Blower cylinder undivided up to GM 400 L. From GM 430 S the cylinders are horizontally divided. Up to GM 80 L the feet at the blower are bolted on, larger sizes are cast on. Lube oil supply by splash lubrication.

Materials

Housing parts (cylinder, side plates, gear case and housing cover) made of GG-20. Shafts made of C 45 N and rotors made of C 45 N (GM 3 S up to GM 80 L) shafts and rotors are forged in one piece. On size GM 90 S and GM 130 L pistons and shafts are cast of one piece EN-GJS-500-7 (GGG50). Rotors made of EN-GJS-400-15 (GGG40). (GM 150 S up to GM 1080 L) helical timing gears made of 16 Mn Cr 5E. In case other materials are need, please ask for.

Shaft sealings

Conveying chamber seal by 4 piston ring labyrinth seals with oil slingers at each shaft end. On request, 4 radial seal ring-piston ring labyrinth seals are available. Driving shaft seal by radial seal ring. In case of gastight design of the driving shaft 2 radial seal rings are used with an intermediate grease trap.

Direction of flow

from top to bottom (vertical)

Position of the driving shaft

left (viewed onto the driving shaft) alternatively the driving shaft is possible at the right

Drive

Overhung drive via narrow v-belt, directly driven via flexible coupling or with gearbox.

Applications

  • Water and waste water treatment
  • Pneumatic conveyance of bulk materials
  • Aeration
  • Filter backwashing
  • Gas conveyance
  • Degassing
  • Dust removal
  • Vacuum production
  • Biogas treatment
  • Air separation plant

Industries

  • Sewage treatment
  • Chemical and process technology
  • Power plants
  • Cement and lime
  • Foodstuffs
  • Paper


Robust 3-lobe blower stage for plant engineering. Suitable for a wide range of applications. Available as standard in 22 sizes (GM 3 S to GM 1080 L).

Design

Blower with 3-lobe rotors and two cast-in preinlet channels in the discharge-sided cylinder part to minimze the sound by pulsation reduction. Housing ribbed and air-cooled. Blower cylinder undivided up to GM 400 L. From GM 430 S the cylinders are horizontally divided. Up to GM 80 L the feet at the blower are bolted on, larger sizes are cast on. Lube oil supply by splash lubrication.

Materials

Housing parts (cylinder, side plates, gear case and housing cover) made of GG-20. Shafts made of C 45 N and rotors made of C 45 N (GM 3 S up to GM 80 L) shafts and rotors are forged in one piece. On size GM 90 S and GM 130 L pistons and shafts are cast of one piece EN-GJS-500-7 (GGG50). Rotors made of EN-GJS-400-15 (GGG40). (GM 150 S up to GM 1080 L) helical timing gears made of 16 Mn Cr 5E. In case other materials are need, please ask for.

Shaft sealings

Conveying chamber seal by 4 piston ring labyrinth seals with oil slingers at each shaft end. On request, 4 radial seal ring-piston ring labyrinth seals are available. Driving shaft seal by radial seal ring. In case of gastight design of the driving shaft 2 radial seal rings are used with an intermediate grease trap.

Direction of flow

from top to bottom (vertical)

Position of the driving shaft

left (viewed onto the driving shaft) alternatively the driving shaft is possible at the right

Drive

Overhung drive via narrow v-belt, directly driven via flexible coupling or with gearbox.

Applications

  • Water and waste water treatment
  • Pneumatic conveyance of bulk materials
  • Aeration
  • Filter backwashing
  • Gas conveyance
  • Degassing
  • Dust removal
  • Vacuum production
  • Biogas treatment
  • Air separation plant

Industries

  • Sewage treatment
  • Chemical and process technology
  • Power plants
  • Cement and lime
  • Foodstuffs
  • Paper


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Aerzen Machines Limited
Aerzen Machines Limited
Langston Road
Loughton
IG10 3SL
Tel: 020 8502 8100
Fax: 020 8502 8102
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