Expanded graphite packing GR8622

Composition

API 622 packing approved.
The gland packing GR8622 it’s a special expanded graphite Sigraflex® braided sealing for valves. These yarns guarantee a very low weight loss (requirement EN 14772, section 6.7) and great sliding property.
The compression packing GR8622, which meets the Low Emission API 622 requirements, preserves for a long time the recovery and the sealing performance without retightening. The graphite strands are Inconel® wire and impregnated with colloidal graphite and special compounds

Characteristics

Flexible expanded graphite Sigraflex® Inconel® wire
Special compound

Applications

GR8622 is specific for Industrial Valves Low Emission service suitable also for HP/HT applications

Expanded graphite packing GR8622
  P bar Ibf/in2 Vm/S f/pm pH T°C °F
500 7500 1 200 0 ÷ 14(3) -200 ÷ 450(1) / 650(2) -330 ÷ +850(1) / 1200(2)
sezione mm sezione inch kg/box lbs/box mt/box ft/box mt/kg ft/lbs
3 1/8 1 2.2 74.1 243 74.1 110.3
4 - 1 2.2 41.7 137 41.7 62.1
5 3/16 1 2.2 26.7 87 26.7 39.7
6 - 2.5 5.5 46.3 152 18.5 27.6
6.5 1/4 2.5 5.5 39.4 129 15.8 23.5
8 5/16 2.5 5.5 26 85 10.4 15.5
9.5 3/8 2.5 5.5 18.5 61 7.4 11
10 - 2.5 5.5 16.7 55 6.7 9.9
11 7/16 2.5 5.5 13.8 45 5.5 8.2
12 - 2.5 5.5 11.6 38 4.6 6.9
12.7 1/2 2.5 5.5 10.3 34 4.1 6.2
14 9/16 5 11 17 56 3.4 5.1
16 5/8 5 11 13 43 2.6 3.9
17.5 11/16 5 11 10.9 36 2.2 3.2
18 - 5 11 10.3 34 2.1 3.1
19 3/4 5 11 9.2 30 1.8 2.8
22 7/8 5 11 6.9 23 1.4 2.1
25.5 1 5 11 5.1 17 1 1.5