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Attention for the suction control valve of Atlas Copco air compressors: After replacing or repairing the suction control valve, it is necessary to recalibrate the pressure setting value to ensure it matches the system requirements. Avoid using non-original factory parts to prevent abnormal operation of the compressor due to size deviations or material issues.

Applicable models The Z series oil-free centrifugal compressors of ATLAS COPCO, such as ZB VSD⁺ oil-free magnetic suspension centrifugal blower, ZM oil-free multi-stage centrifugal blower, ZHL single-stage centrifugal compressor, etc., as well as the GT, T, RT and other series process gas compressors, all come with corresponding impeller components.

If you need to purchase or replace the air compressor head of this model, it is recommended to do so through our Atlas Copco dealers to ensure the authenticity of the parts and the subsequent installation, after-sales support. At the same time, when replacing the air compressor head, professional technicians are usually required to operate to ensure the installation is in accordance with specifications and avoid affecting the normal operation of the air compressor.

I. Working Principle The safety valve is designed based on the principle of force balance. It mainly consists of a valve seat, a valve core, a spring, and a regulating mechanism. When the system pressure exceeds the spring's preload force, the valve core is pushed up, and the medium (compressed air) is discharged; when the pressure drops to the return seat pressure, the spring pushes the valve core back to its original position, closing the valve. Key parameters: Opening pressure (set pressure): The pressure at which the valve begins to open, usually 1.05 to 1.1 times the working pressure. Emission pressure: The pressure when the valve reaches its maximum opening height, generally ≤ 1.1 times the opening pressure. Return seat pressure: The pressure when the valve is closed, usually 10% to 15% lower than the opening pressure. Sealing pressure: The maximum pressure at which the valve maintains sealing, generally 90% of the opening pressure.

Model and Purchase Suggestions Full part number: The part number of Atlas Copco's air filters usually consists of multiple digits (such as 1621735200, etc., and C142 might be its specification abbreviation), and the specific number should be based on the equipment manual or the body identification. Purchase Channel: It is recommended to query through Atlas Copco authorized service providers or the official website, providing the complete model of the equipment (such as GA110VSD+) and the factory serial number to ensure the precise compatibility of the accessories. Maintenance Cycle: Follow the recommendations in the VSD + model manual. Generally, it is recommended to replace the filters after 1500-3000 hours (adjust according to the dust concentration in the environment), or replace them promptly when the pressure difference indicator alarms.

Regularly replacing the Atlas Copco original oil separator kit is crucial for maintaining the efficient and stable operation of the GA90-110(W) series air compressors. It can reduce the failure rate, extend the equipment lifespan, and ensure the quality of compressed air.