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Carrara Packing and Gasket
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Packings for valves and pumps
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Composition Continuous graphite PAN yarns Colloidal graphite Passive inhibitor of corrosion Features Special graphite packing PTFE free. The packing is impregnated in three steps: firstly yarn by yarn, during the braiding and on the body at the end. The impregnant compound is PTFE free and rich of inorganic inhibitor of corrosion to minimize the corrosion risks. Applications GR8800A is a great graphite packing PTFE free suitable for steam, hydrocarbon and chemical products for static and dynamic applications as feed boiler pumps and soot blowers. Avoid the combustion gases over 450°C
| P bar | Ibf/in2 | Vm/S | f/pm | pH | T°C | T°F | |
 | 300 | 4500 | 1 | 200 | 0 ÷ 14(3) | -100 ÷ 450(1) / 650(2) | -150 ÷ 840(1) / 1200(2) |
 | 20 | 300 | 2 | 400 | 0 ÷ 14(3) | -100 ÷ 450(1) / 650(2) | -150 ÷ 840(1) / 1200(2) |
 | 40 | 600 | 25 | 5000 | 0 ÷ 14(3) | -100 ÷ 450(1) / 650(2) | -150 ÷ 840(1) / 1200(2) |
| sezione mm | size 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 |