API 622 Packing GR8622

Composition

API std 622 3rd Edition packing approved.
The gland packing GR8622 is made with pure flexible graphite and it's specific for Industrial Valves Low Emission Services. The special configuration, where the yarns guarantee a very low weight loss and great sliding property, preserves for long time the recovery and the sealing performance without retightening.

Characteristics

Pure reinforced flexible graphite
Special compounds

Applications

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

API 622 Packing GR8622
  P bar Ibf/in2 Vm/S f/pm pH T°C T°F
500 7250 2 400 0 ÷ 14 -200 ÷ 450 / 650 -240 ÷ 850 / 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

sezione mmsezione inchkg/boxlbs/boxmt/boxft/boxmt/kgft/lbs
31/812.274.124374.1110.3
4-12.241.713741.762.1
53/1612.226.78726.739.7
6-2.55.546.315218.527.6
6.51/42.55.539.412915.823.5
85/162.55.5268510.415.5
9.53/82.55.518.5617.411
10-2.55.516.7556.79.9
117/162.55.513.8455.58.2
12-2.55.511.6384.66.9
12.71/22.55.510.3344.16.2
149/1651117563.45.1
165/851113432.63.9
17.511/1651110.9362.23.2
18-51110.3342.13.1
193/45119.2301.82.8
227/85116.9231.42.1
25.515115.11711.5
  • The weight per meter and the packaging's weight may have a tolerance of +/- 10%. Other sizes and packaging are available on demand.