ATLAS COPCO Inlet Valve Maintenance Kit Replacement – 2200900951

The 2200900951 Inlet Valve Maintenance Kit contains the essential wear parts required to rebuild the compressor’s inlet valve assembly. The inlet valve controls the amount of atmospheric air entering the airend based on compressed air demand. A properly functioning inlet valve ensures efficient compressor loading, stable pressure, and reduced energy consumption.

Working Process

1. Compressor Start-up
   • When the compressor starts, the inlet valve remains closed or partially open until the controller initiates the loading sequence.
2. Loading Operation
   • The inlet valve opens, allowing atmospheric air to enter the airend.
   • The air is compressed and delivered to the air/oil separator and then to the compressed air network.
3. Pressure Regulation
   • As system pressure reaches the preset value, the controller activates the unloading cycle.
   • The inlet valve closes, stopping the intake of air while the compressor idles, reducing unnecessary power consumption.
4. Reloading
   • When system pressure drops due to air demand, the inlet valve reopens automatically.
   • The compressor resumes full-capacity air compression.
5. Maintenance Function
   • Over time, valve seals, O-rings, springs, and moving components wear out, leading to air leakage, slow loading, or unstable pressure.
   • The 2200900951 Maintenance Kit replaces these wear components, restoring smooth valve movement, efficient loading/unloading, and reliable compressor performance.

Key Features

• Complete maintenance kit for the inlet (unloader) valve.
• Restores efficient compressor loading and unloading.
• Improves energy efficiency and pressure stability.
• Reduces air leakage and component wear.
• Extends compressor service life and minimizes downtime.
• Compatible with selected Atlas Copco and equivalent rotary screw air compressors using Part No. 2200900951.