Aerzen USA Process Gas Division

NEGATIVE PRESSURE STAGE WITH PRE-INLET COOLING

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
• for an absolute pressure at inlet of approx. 200 mbar against atmosphere.
• 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

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 up to size 19 for all loads.

SPECIAL MATERIAL

Available in nodular graphite cast iron (EN-GJS-400-15 resp. EN-GJS-400-18).