Proper installation of the static ring and gland of a PTFE gasket sheet is crucial for ensuring effective sealing and longevity. The process involves careful handling to avoid damage, ensuring cleanliness, and following a step-by-step sequence to maintain structural integrity. Key considerations include avoiding contact with bearings, preventing damage to sealing surfaces, and using appropriate fixtures to secure the PTFE material during installation.
Key Points Explained:
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Installation Sequence
- The static ring and gland must be installed together on the shaft before the moving ring.
- Ensure they do not touch the bearings, as this can compromise the installation's effectiveness.
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Pre-Installation Checks
- Verify equipment cleanliness to prevent contamination.
- Inspect the gland for burrs or imperfections that could damage the gasket.
- Ensure the bearing flexibility is maintained to facilitate smooth installation.
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Handling and Placement
- Avoid forceful insertion; gradual and careful placement prevents structural damage.
- Protect the sealing line or raised surface from scratches or deformation.
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Securing PTFE Material
- Use fixtures to tightly hold the PTFE gasket in place during machining or installation.
- PTFE's low coefficient of friction makes it prone to movement, so proper clamping is essential.
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Post-Installation Verification
- Confirm the static ring and gland are correctly seated without misalignment.
- Check for any signs of stress or damage post-installation.
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Maintenance Considerations
- A clean and well-installed gasket simplifies future maintenance.
- Regular inspections help detect early wear or misalignment.
By adhering to these steps, the PTFE gasket will perform optimally, providing reliable sealing under varying operational conditions.
Summary Table:
| Step | Key Action | Purpose |
|---|---|---|
| Installation Sequence | Install static ring and gland together before the moving ring. | Prevents contact with bearings and ensures proper alignment. |
| Pre-Installation Checks | Clean equipment, inspect gland for imperfections, and verify bearing flexibility. | Eliminates contamination risks and ensures smooth installation. |
| Handling and Placement | Avoid forceful insertion; protect sealing surfaces. | Prevents structural damage or deformation to the PTFE gasket. |
| Securing PTFE Material | Use fixtures to tightly clamp the gasket during installation. | Counteracts PTFE's low friction to maintain stability. |
| Post-Installation Verification | Check for proper seating and alignment. | Ensures no stress or misalignment compromises sealing performance. |
| Maintenance Considerations | Conduct regular inspections and keep the gasket clean. | Extends lifespan and simplifies future maintenance. |
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