Graphite Packing GR48R

Composition

Pure high carbon content flexible graphite yarns reinforced with InconelTM wire.

Characteristics

The flexible graphite packing GR48R is a versatile and high-performing solution for many industrial applications. Made with expanded graphite yarns with high carbon content and reinforced with InconelTM, it can withstand high temperatures and pressures, as well as multiple industrial fluids and gases, except for highly oxidizing ones. Thanks to its easy cutting and installation, this universal braid is an ideal choice for sealing valves and pipes of all types. Additionally, the GR48R packing is also available in the non-reinforced version GR48, which still offers excellent performance in many industrial applications. With GR48R and GR48, you can ensure maximum safety and reliability for your industrial seals.

Applications

The flexible graphite braid GR48R is specifically designed to ensure perfect sealing on industrial valves of all types, with the ability to use various fluids and gases, excluding only highly oxidizing ones. Thanks to the high carbon content present in the expanded graphite yarns and the nickel-alloy metal reinforcement, this braid guarantees greater resistance and durability over time compared to the non-reinforced version GR48. However, to achieve optimal performance in the case of dynamic seals, it is recommended to use GR48R with the help of anti-extrusion rings. It is important to note that the maximum pressure for use in valves should not exceed 100 bar in the absence of anti-extrusion rings. In any case, the flexible graphite braid GR48R represents an ideal solution for industrial needs that require reliability, resistance, and versatility.

Graphite Packing GR48R
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  P bar Ibf/in2 Vm/S f/pm pH T°C T°F
300 4500 1 200 0 ÷ 14 -200 ÷ 450 / 650 -330 ÷ 840 / 1200

  • 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

  • With weakly oxidizing agents and hot air the temperature must be limited to 450 ° C

  • With steam and non-oxidizing fluids the temperature must be limited to 650 ° C

  • Graphite and carbon cannot be used with oxidizing fluids

  • The packing shall be used with wiper anti-extrusion rings with valves over 100 bar 

sezione mm sezione inch kg/box lbs/box mt/box ft/box mt/kg ft/lbs
3 1/8" 1 2.2 100.0 328.1 100.0 149.0
4 - 1 2.2 47.4 155.5 47.4 70.6
5 3/16" 1 2.2 29.4 96.5 29.4 43.8
6 - 2.5 5.5 52.1 170.9 20.8 31.0
6.5 1/4" 2.5 5.5 50.0 164.0 20.0 29.8
8 5/16" 2.5 5.5 29.8 97.8 11.9 17.8
9.5 3/8" 2.5 5.5 21.3 69.9 8.5 12.7
10 - 2.5 5.5 19.2 63.0 7.7 11.4
11 7/16" 2.5 5.5 15.9 52.2 6.4 9.5
12 - 2.5 5.5 13.2 43.3 5.3 7.9
12.7 1/2" 2.5 5.5 11.9 39.0 4.8 7.1
14 9/16" 5 11 20.0 65.6 4.0 6.0
16 5/8" 5 11 14.7 48.2 2.9 4.4
17.5 - 5 11 13.3 43.6 2.7 4.0
18 11/16" 5 11 11.9 39.0 2.4 3.5
19 3/4" 5 11 10.6 34.8 2.1 3.2
22 7/8" 5 11 7.9 25.9 1.6 2.4
25.5 1" 5 11 6.2 20.3 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.