Design comparison

To deliver a flow of 1600 m³/hr (942 cfm) at a pressure of 0.8 bar(e) (11.6 psig), the tri-lobe blower consumes 61 kW (82 hp) on average.
 
High resistance to the internal air flow lead to high pressure drops and increased energy consumption.

Losses by:

1. External compression
   
2. Belt/pulley
   
3. Silencer
   
4. Inlet filter
   
   

To deliver a flow of 1600 m³/hr (942 cfm) at a pressure of 0.8 bar(e) (11.6 psig), the screw blower consumes 43 kW (58 hp) on average.

In the ZS screw blower, the internal air flow path is optimized to reduce pressure drops and air turbulance.

Maximum savings by:

1. Internal compression
   
2. Integrated gearbox
   
3. Smooth silencer
   
4. Inlet filter