Expanded PTFE yarns with encapsulated graphite without further lubrication (egPTFE) by GORE®.
The packing style GF4770 is made with 100% of pure GORE® yarns. This yarn without lubricant guarantees at the same time great resistance to the extrusion and reduced wear thanks to its low coefficient of friction.
The packing GF4770 is very versatile and can be used both on the valves and on the pumps, especially the reciprocating ones, for all services compatible with PTFE and graphite.
P bar | Ibf/in2 | Vm/S | f/pm | pH | T°C | T°F | |
---|---|---|---|---|---|---|---|
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500 | 7500 | 1 | 200 | 0 ÷ 14 | -200 ÷ 280 | -330 ÷ 540 |
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200 | 3000 | 2 | 400 | |||
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20 | 300 | 10 | 2000 |
Never use the product to the maximum temperature and pressure associated. Consult the manufacturer for further information
The peak temperature can be sustained for short exposures
Graphite and carbon cannot be used with oxidizing fluids
sezione mm | sezione inch | kg/box | lbs/box | mt/box | ft/box | mt/kg | ft/lbs |
---|---|---|---|---|---|---|---|
3 | 1/8 | 1 | 2.2 | 85.5 | 280 | 85.5 | 127.3 |
4 | - | 1 | 2.2 | 48.1 | 158 | 48.1 | 71.6 |
5 | 3/16 | 1 | 2.2 | 30.8 | 101 | 30.8 | 45.8 |
6 | - | 2.5 | 5.5 | 53.4 | 175 | 21.4 | 31.8 |
6.5 | 1/4 | 2.5 | 5.5 | 45.5 | 149 | 18.2 | 27.1 |
8 | 5/16 | 2.5 | 5.5 | 30 | 99 | 12 | 17.9 |
9.5 | 3/8 | 2.5 | 5.5 | 21.3 | 70 | 8.5 | 12.7 |
10 | - | 2.5 | 5.5 | 19.2 | 63 | 7.7 | 11.5 |
11 | 7/16 | 2.5 | 5.5 | 15.9 | 52 | 6.4 | 9.5 |
12 | - | 2.5 | 5.5 | 13.4 | 44 | 5.3 | 8 |
12.7 | 1/2 | 2.5 | 5.5 | 11.9 | 39 | 4.8 | 7.1 |
14 | 9/16 | 5 | 11 | 19.6 | 64 | 3.9 | 5.8 |
16 | 5/8 | 5 | 11 | 15 | 49 | 3 | 4.5 |
17.5 | 11/16 | 5 | 11 | 12.6 | 41 | 2.5 | 3.7 |
18 | - | 5 | 11 | 11.9 | 39 | 2.4 | 3.5 |
19 | 3/4 | 5 | 11 | 10.7 | 35 | 2.1 | 3.2 |
22 | 7/8 | 5 | 11 | 7.9 | 26 | 1.6 | 2.4 |
25.5 | 1 | 5 | 11 | 5.9 | 19 | 1.2 | 1.8 |
The weight per meter and the packaging's weight may have a tolerance of +/- 10%. Other sizes and packaging are available on demand.