Atlas Copco Minimum Pressure Valve Replacement – 2205490595

The 2205490595 is identified as a Minimum Pressure Valve (MPV) Service Kit for Atlas Copco compressor equipment. Parts references also list the number as 2205-4905-95.

Working Process

The 2205490595 MPV Service Kit is used to service the compressor’s minimum pressure valve. The MPV helps maintain the required minimum pressure inside the compressor’s separator vessel before compressed air is released to the downstream system.

During startup, the valve remains closed or restricted until sufficient internal pressure is established. Once the required pressure is reached, the valve opens and allows compressed air to flow toward the air network.

Maintaining minimum internal pressure is important for proper oil circulation, lubrication and oil separation in an oil-injected screw compressor. The MPV also helps prevent undesirable reverse airflow when the compressor is unloaded or shut down.

Over time, the valve’s seals and internal wear components can deteriorate due to pressure cycling, temperature and normal operation. The 2205490595 service kit provides replacement components to restore the MPV’s sealing and pressure-control performance.

Key Benefits

• Helps maintain minimum compressor pressure.
• Supports proper oil circulation and lubrication.
• Helps maintain effective oil separation.
• Helps prevent reverse airflow.
• Supports reliable compressor startup.
• Helps maintain stable loaded/unloaded operation.
• Reduces pressure leakage through worn valve components.
• Extends the service life of the MPV assembly.
• Suitable for scheduled compressor maintenance.

Application

The 2205490595 is listed as an MPV Kit / Minimum Pressure Valve Service Kit for Atlas Copco compressors. Chicago Pneumatic parts listings also identify it specifically as an MPV Service Kit.

The part is also cross-referenced under 2205-4905-95.

Exact compressor compatibility should be verified using the compressor model and serial number before installation.

Maintenance Importance

During servicing, inspect the MPV for seal deterioration, leakage, sticking, contamination and pressure-control problems. Replacing worn components with the correct 2205490595 MPV Service Kit can restore proper valve operation and help maintain compressor reliability.

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