
Valve Inner Disc — Large
Valve Inner Disc — Large
Application: EMD air compressor valve assembly
Part of our Valve outer disc product line
The Valve Outer Disc is identified by EMD Part No. 8083590. EMD parts references identify 8083590 as Valve Outer Disc, and Indian Railways documentation identifies EMD Part No. 8083590 as Valve Outer Disc for the applicable compressor application. No DLW cross-reference is supplied for this part. :contentReference[oaicite:4]{index=4}
How This Part Works
The Valve Outer Disc is a disc component of the applicable air-compressor valve assembly. It forms part of the valve arrangement at its designated location within the compressor.
Signs It's Time to Replace
- Disc surface wear: deterioration of the working surface should be inspected
- Scoring: grooves or scoring on the disc surface should be evaluated
- Pitting: surface pitting can indicate deterioration
- Cracking or deformation: visible physical damage should be assessed
- Abnormal valve operation: changes in compressor valve operation should prompt inspection of the valve components
Apex identifies the Valve Outer Disc by EMD Part No. 8083590. Exact part-number identification helps distinguish this component from EMD 8063273 and the EMD 8063274 inner disc.
See all Valve outer disc parts →- Engine Compatibility
- EMD 645 & EMD 710 Series
- Applications
- Locomotive · Marine · Power Generation
- Quality Standard
- ISO 9001:2015 Certified · OEM Grade

