Paper Industry
Carbon-Filled PTFE Seal Rings
The heart of the rotary joint, manufactured from carbon filled Teflon offering more wear resistance than ordinary carbon seal rings with far less chance of bulging and breakage.
Technical specifications
| Dimensional availability | Custom rotary-joint diameters and sections |
|---|---|
| Tolerances | Machined fit and face finish to approved drawing |
| Available grades | 25% Carbon-filled PTFE, Graphite-filled PTFE, Virgin PTFE on request |
| ASTM test references | ASTM D4894, ASTM D4745 |
Final dimensions, tolerances and material grade are confirmed against your drawing and service conditions.
Applications & selection
Typical uses
- Rotary joint sealing
- Dryer cylinder service
Industries: Paper mills, Pulp & board.
Selecting the right construction
Provide rotary-joint model, ring dimensions, mating face, speed and steam conditions. Check finish and fit against the equipment drawing.
Chemical resistance depends on the polymer, fillers, inserts and process conditions. Confirm the exact medium and concentration; general PTFE properties do not establish a complete assembly's service rating.
Interactive product model
Buyer questions
Where are carbon-filled ptfe seal rings used?
Rotary joint sealing, Dryer cylinder service. Typical sectors include Paper mills, Pulp & board; suitability depends on the actual service conditions.
What sizes can I request for carbon-filled ptfe seal rings?
Custom rotary-joint diameters and sections. Final dimensions and tolerances are agreed during quotation.
What should I specify when ordering carbon-filled ptfe seal rings?
Provide rotary-joint model, ring dimensions, mating face, speed and steam conditions. Check finish and fit against the equipment drawing.
How is material suitability confirmed for paper industry?
Submit the exact medium, concentration, temperature, pressure and mechanical duty. Grade availability and compatibility are confirmed for the specific construction; an ASTM reference is not a product certification.
Selecting a filled grade? Read our PTFE vs Teflon engineering guide.
Related products
Request a quotation
Include quantity, dimensions or a drawing, required material and the operating medium. Add concentration, temperature, pressure and motion or shaft speed where relevant. Final grade, inspection requirements and service limits are confirmed during quotation.
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