The conveying chamber of the Gas Blower type GR/GRa/GRb is completely separated from the oil pumps by a space open to the atmosphere. Shaft sealed by a system of pressure that relieve soft packings with carbon ring-labyrinth seals, and water- and oil-purged by double-acting mechanical seals. Vertical direction of flow from top to bottom. Drive directly via flexible coupling or flexible spur gear, alternatively via narrow V-belt (up to 250 kW). Designs in special materials possible.
| Intake volume flow |
100 up to 50.000 m³/h |
| Size |
12 |
| Suitable for |
conveying of industrial gases which may also be aggressive. Overpressure- and vacuum range |
| Pressure operation |
Differential pressure at pressure operation up to 800 mbar |
| Suction operation |
Differential pressure at suction operation up to 450 mbar |
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