Atlas Copco Element Mounting Kit Replacement – 2906097200

The Atlas Copco 2906097200 is an Element Mounting Kit used when installing or replacing the compressor element (air end) on applicable GA90–160 oil-injected screw compressors. The kit provides the required mounting hardware and sealing components to correctly position, secure and seal the compressor element.

The compressor element contains the male and female rotors that compress the incoming air. Correct mounting and sealing are essential because the element operates at high rotational speed with very small internal clearances.

Working Process

1. Air Intake – Atmospheric air enters the compressor through the inlet system.
2. Oil Injection – Oil is injected into the compression chamber for lubrication, cooling and sealing.
3. Rotor Compression – The male and female rotors rotate and progressively compress the air.
4. Element Support – The mounting kit securely positions the compressor element.
5. Alignment – Mounting components and the parallel key help maintain correct alignment with the drive system.
6. Sealing – O-rings, gasket and sealing washer prevent air/oil leakage at the mounting interfaces.
7. Power Transmission – Correct mounting allows rotational power to be transferred reliably to the compressor element.
8. Continuous Operation – The properly mounted element continuously produces compressed air.

Kit Components

Atlas Copco’s official listing includes multiple O-rings, screws, a gasket, a parallel key and a Dowty sealing washer.

Main Functions

• Provides mounting components for the compressor element.
• Maintains correct element positioning.
• Supports drive-shaft alignment.
• Provides required sealing at mounting points.
• Helps prevent oil and compressed-air leakage.
• Supports smooth and reliable compressor operation.
• Reduces the risk of incorrect element installation.

Possible Problems With Worn/Missing Mounting Components

Improper mounting or deteriorated seals can contribute to:

• Oil leakage.
• Compressed-air leakage.
• Excessive vibration.
• Abnormal compressor noise.
• Shaft misalignment.
• Increased bearing load.
• Reduced compressor efficiency.
• Premature compressor-element damage.

Maintenance / Installation Process

1. Shut down the compressor according to the applicable Atlas Copco service procedure.
2. Isolate the electrical supply.
3. Fully depressurize the compressor.
4. Allow the compressor to cool.
5. Drain/isolate the applicable oil circuit.
6. Remove the existing compressor element.
7. Inspect the mounting surfaces and drive components.
8. Clean all mating surfaces.
9. Replace the old O-rings and gasket.
10. Install the components supplied in 2906097200.
11. Position the compressor element correctly.
12. Install the parallel key and associated mounting hardware.
13. Verify shaft and element alignment.
14. Tighten fasteners using the specified Atlas Copco torque values.
15. Reconnect the oil and air circuits.
16. Restart the compressor.
17. Check for oil/air leakage.
18. Monitor vibration, temperature and operating pressure.

Technical Summary

Recommended catalog title:
Atlas Copco 2906097200 – GA90–160 Element Mounting Kit for Oil-Injected Screw Compressors, 2906-0972-00.

Atlas Copco’s official catalog confirms the KIT ELEMENT MOUNTING, GA stationary oil-injected compressor application, 689.46 g weight, and component list.

Compatibility note: Some third-party catalogs also associate this part with specific GA models such as GA132/GA160, but the official Atlas Copco listing gives the broader GA90–160 application. Verify the machine serial number before ordering.

Disclaimer: All manufacturer names, trademarks, model numbers, and part numbers are used solely for identification and compatibility purposes. Our products are high-quality aftermarket replacement products and are not manufactured, sponsored, endorsed, or authorized by the original equipment manufacturer (OEM). All trademarks remain the property of their respective owners.