Atlas Copco Air Valve Kit Replacement – 2906032500

The Atlas Copco 2906032500 is an Air Valve Kit used in the air-treatment system of applicable MD600/MD1000 W equipment. The valve controls the required air flow through the air-treatment/regeneration circuit and helps maintain proper operating conditions.

The kit is used to restore the valve’s sealing and operating components during maintenance. Atlas Copco lists an O-ring, valve, packing nut, sealing components and associated hardware in the kit.

Working Process

1. Air Enters the Air-Treatment System – Compressed air enters the MD air-treatment equipment.
2. Air Valve Control – The air valve controls the required flow through the circuit.
3. Treatment/Regeneration – Air passes through the appropriate treatment or regeneration path.
4. Valve Regulation – The valve opens or closes according to the operating cycle.
5. Sealing – O-rings and sealing components prevent unwanted air leakage.
6. Pressure Control – Correct valve operation helps maintain the required pressure and airflow.
7. Continuous Cycle – The valve operates repeatedly according to the equipment’s treatment/regeneration cycle.

Main Functions

• Controls airflow within the air-treatment equipment.
• Supports the regeneration cycle.
• Maintains proper air-flow direction and control.
• Prevents unwanted compressed-air leakage.
• Restores valve sealing during maintenance.
• Supports reliable operation of MD air-treatment equipment.

Kit Components

Atlas Copco’s official listing identifies these components:

Possible Failure Symptoms

A worn or damaged air valve can cause:

• Air leakage.
• Incorrect regeneration airflow.
• Pressure fluctuations.
• Poor air-treatment performance.
• Increased air consumption.
• Difficulty maintaining operating pressure.
• Abnormal valve operation.
• Reduced equipment efficiency.

Maintenance Procedure

1. Shut down the air-treatment equipment according to the applicable Atlas Copco procedure.
2. Isolate the electrical and compressed-air supplies.
3. Fully depressurize the system.
4. Allow the equipment to reach a safe temperature.
5. Remove the air-valve assembly.
6. Inspect the valve, packing nut and sealing surfaces.
7. Remove old O-rings and sealing components.
8. Clean the mating surfaces.
9. Install the replacement components from 2906032500.
10. Correctly position the valve and sealing components.
11. Install the O-rings without twisting or damaging them.
12. Reassemble the valve.
13. Restore the air supply.
14. Restart the equipment.
15. Check valve operation and inspect for leakage.
16. Verify normal regeneration and air-treatment performance.

Technical Summary

Recommended catalog title:
Atlas Copco 2906032500 – MD600/MD1000 W Air Valve Kit for Air Treatment Equipment, 2906-0325-00.

Atlas Copco’s parts documentation confirms 2906032500 / 2906-0325-00 as the Air Valve Kit for MD600 (W) and MD1000 W equipment.