铁氟龙, 氟橡胶, 铁氟龙FEP, PVDF法国阿科玛9000HD, ETFE日本旭硝子C-88AX, PFA美国杜邦340, PA66/F/PTFE美国液氮RFL-403, PA66/PTFE美国液氮RL-4040, POM/PTFE基础创新塑料KL004
铁氟龙, 氟橡胶, 铁氟龙FEP, PVDF法国阿科玛9000HD, ETFE日本旭硝子C-88AX, PFA美国杜邦340, PA66/F/PTFE美国液氮RFL-403, PA66/PTFE美国液氮RL-4040, POM/PTFE基础创新塑料KL004
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| Avalon 56 | |||
| Polytetrafluoroethylene | |||
| Product Description: | |||
| PTFE is preferred for use in many pharmaceutical-sealing applications. Its chemical inertness and ultra-low level extractables provide pharmaceutical process and validation engineers with a safe material to use in almost any application. PTFE is visco-elastic, providing a functional seal when other fluorinated plastics such as PFA or FEP cannot. However, because virgin PTFE will creep under load its ability to provide a reliable seal during temperature cycling is limited. | |||
| Ferrule gaskets made from Avalon® 56 provide a level of performance superior to other PTFE materials used in the pharmaceutical and hygienic fluid handling industries. Greene, Tweed's Avalon 56 uses the latest generation modified PTFE. Modified PTFE contains a small amount of a perfluoroether to improve creep resistance, compressive strength and permeation resistance. Modified PTFE is not only the material of choice for PTFE-faced diaphragm materials, but it is also FDA compliant. | |||
| While other gasket manufacturers fabricate gaskets by directly molding the finished part, Greene Tweed machines Avalon 56 sanitary gaskets and custom shapes from isostatic-molded billets to provide optimal physical properties and tighter tolerances, easing the installation process. | |||
| Avalon 56 virgin PTFE seals deliver improved sealing performance over standard PTFE. | |||
| Avalon 56 is available in all sanitary gasket sizes, as well as custom shapes. | |||
| General | |||
| Features | Good Chemical Resistance | Good Creep Resistance | Low Extractables |
| Good Compressive Strength | High Elasticity | ||
| Uses | Gaskets | Pharmaceuticals | Seals |
| Agency Ratings | FDA Unspecified Rating | USP Class VI | |
| Appearance | White | ||
| Forms | Pellets | ||
| Physical | Nominal Value | Unit | Test Method |
| Specific Gravity | 2.17 | g/cm³ | ASTM D1457 |
| Mechanical | Nominal Value | Unit | Test Method |
| Tensile Strength (Yield) | 34.5 | MPa | ASTM D638 |
| Tensile Elongation (Yield) | 450 | % | ASTM D1457 |
| Shear Strength | ASTM D732 | ||
| 27°C | 16.5 | MPa | |
| 38°C | 15.2 | MPa | |
| 66°C | 12.8 | MPa | |
| 93°C | 11.7 | MPa | |
| 149°C | 10.3 | MPa | |
| 204°C | 9.31 | MPa | |
| Coefficient of Friction 2 | |||
| vs. Itself - Dynamic | 0.08 | ||
| vs. Itself - Static | 0.05 | ||
| Deformation Under Load (22°C, 14 MPa) | 3.2 | % | ASTM D621 |
| Wear Factor | 5000 | 10^-8 mm³/N·m | ASTM G77 |
| 233.3 psi |
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