Technical Data Sheet
Syphon Shoe for Dryer
Paper Industry
Polytetra Processors
Rakhial, Ahmedabad, Gujarat, India
www.automatasia.com
Wear resistant syphon shoes for dryer condensate removal, machined from filled Teflon grades for continuous high temperature contact.
Specification
| Sizes | Custom profiles for dryer syphon assemblies |
|---|---|
| Tolerances | Contact profile and mounting dimensions to approved drawing |
| Grades | 25% Carbon-filled PTFE, Graphite-filled PTFE, Virgin PTFE on request |
| Standards | ASTM D4894, ASTM D4745 |
| Typical uses | Condensate evacuation, Dryer syphon systems |
| Industries | Paper mills |
Typical properties — virgin PTFE
| Property | Typical value | Test method |
|---|---|---|
| Specific gravity | 2.14 – 2.20 | ASTM D792 |
| Tensile strength | 20 – 35 MPa | ASTM D638 / D4894 |
| Elongation at break | 200 – 400 % | ASTM D638 / D4894 |
| Hardness | Shore D 50 – 65 | ASTM D2240 |
| Coefficient of friction (dynamic) | 0.04 – 0.10 | ASTM D1894 |
| Continuous service temperature | −200 °C to +260 °C | — |
| Melting point | ≈ 327 °C | ASTM D4894 |
| Dielectric strength | ≈ 32 kV/mm (short time, thin section) | ASTM D149 |
| Water absorption | < 0.01 % | ASTM D570 |
Typical values for guidance only, not guaranteed minimums. Filled grades, linings and finished parts differ; confirm limits for your application. Issued 2026.