
| General Information: | |||
| Teflon is used in valves because of its excellent resistance to chemical attack and its strength at low temperature. It is electrically non-conductive and has an extremely low coefficient of friction. | |||
| Basic Composition: | |||
| Tetrafluoroethylene | |||
| Mechanical Properties: | |||
| Hardness | 28 Rockwell 'R' | ||
| Density | 0.078 lbs/cub.in. | ||
| Specific Gravity | 2.1/2.2 | ||
| Water Absorption (24hrs) | .005% | ||
| Max. Useful Temperature | 260 Deg.C (500 Deg.F) | ||
| Colour | White Opaque | ||
| Size Range: | |||
| Imperial | 3/32" to 7/8" inclusive (stock sizes) | ||
| Larger sizes up to 6" to order | |||
| Tolerances: | 3/32" to 7/16" | 1/2" to 7/8" | |
| Basic Dia.Tolerance | ±.002" | ±.003" | |
| Sphericity | .001" | .002" | |
| Corrosion Resistance: | |||
| Teflon is resistant to nearly all corrosive reagents. It is particularly useful with wet chlorine. | |||