Planigraph Planigraph
Comply the Low Emission requirements assuring the overall material conformity is our commitment.
PGT4 GR8622ESP The Graphite Stem Packing
PlanigraphESP is the modified expanded mineral graphite designed according to very strict guidelines. Maintaining the packing weight is essential in order to meet standards and minimize fugitive emissions in the long term. The excellent sealing capabilities of PGT4 GR8622ESP and the reduced fugitive emissions are born from a completely brandnew approach. This material is characterized by a reduced coefficient of friction and low permeability, better than those achievable with the current technology using lubricants, without compromising the chemical integrity of the material.
PGT4 GR8622ESP is manufactured with the flexible modified graphite foil PlanigraphESP and it is a Low Emissions API std 622 3rd Edition and ISO 15848 BH C01/C02 approved graphite packing, providing a valid solution to reduce OEM stock seal types. It can be used for all Oil & Gas, Cryogenic, H2 and most Chemical services, as well as steam.
API std 622 3rd Ed. - FE 260°C (500°F)
API std 622 3rd Ed. Annex C - FE 400°C (750°F)
ISO 15848 - C01 / C02 400°C (750°F)
Low content of detrimental materials and ash
Weight Loss - API std 622, FSA-G-604-07 Method B, EN-14772 S.6.7
TQ39 - 50.000 h Target Temperature 408°C
Fire Test API 607, API 6FA, ISO 10497
Corrosion Test RT and HT
H2 Compatible
Wet Lubricant Free
Innovative for Nature
Innovative for Nature
Enhanced Sealing Properties
PGT4 GR8622ESP is suitable for Cryogenic applications from -200°C to 650°C without oxidizing fluids and up to 450°C with mild oxidizing fluids and hot air.
Pressure range
PGT4 GR8622ESP is rated for up to 500 bar. It is designed to operate under all pressure conditions covered by classes 150 to 2500 lbs, thanks to its special wiper rings GR8622ESP (for extreme applications, such as those requiring API 5000 and API 10000 standards, please contact the Carrara Technical Department).
Ph Range
PGT4 GR8622ESP is suitable for all pH ranges from 0 to 14, with the exception of strong oxidizers.
PGT4 GR8622ESP is a graphite stem packing seal designed for low-emission services in industrial valves. It is suitable for use with hydrocarbons, hydrogen, VOCs, VHAPs, non-oxidizing chemical compounds, and steam.
API std 622 3rd Edition Approved
PGT4 GR8622ESP is a graphite packing designed to minimize emissions from industrial valve stems. Thanks to the high purity of the materials and the unique manufacturing process, the PGT4 GR8622ESP ensures exceptional sealing levels over a long period, with a low friction coefficient and minimal weight loss at high temperatures.
Approved Low Emission API std 622 3rd Edition, it is the combined graphite packing manufactured with PlanigraphESP, the modified graphite featuring Enhanced Sealing Properties (ESP). This guarantees a reduced friction factor and superior recovery.
Everything before
that is outdated!
  • PTFE Free
  • PFAS Free
  • Wet Lubricant Free
  • Low Friction
  • TQ39
  • H2 Compatible
  • Low Emission