Rotary 2-Stage CO₂ Compressor

Description:

Sanyo has been producing hermetic rotary compressors for transcritical CO2 cycles since 2001. Main applications of its 2-stage compressor are heat pump water heaters and vending machines.

Basic specifications

• Two stage compression in one compressor
• Pressure drop High Pressure (HP) side (bar/m): 0.04
• Number of Cylinders: 2
• Internal intermediate pressure structure
• Variable speed type (Inverter drive required) and Single Speed type are available
• Weight: around 9kg (depends on the capacity)

Advantages

• Resistant to high pressure
• Resistant to large pressure difference
• Increased efficiency through reduced leakage & compression mechanism dimensions
• High-efficiency DC brushless motor
• Compact size & light weight: through thinner walls of the shell & compact motor
• Minimized noise and vibration levels