Service temperature: −200 to +650 °C (steam +400 °C)
Expanded graphite yarn packing reinforced with Inconel or stainless steel wire. The default choice for high-temperature steam, hot water and high-pressure valve service. Excellent thermal conductivity, near-zero leakage when properly seated, and very long service life. Not for strong oxidising acids.
| Service temperature | −200 to +650 °C (steam +400 °C) |
| pH range | 0 to 14 (excluding strong oxidisers) |
| Max. shaft speed | up to 25 m/s (rotary) |
| Cross sections | 3 mm – 25 mm square section, available by metre or in 8 m / 10 m boxes |
| Form | Pre-formed rings or continuous coil |
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Tell us shaft size, fluid, temperature and pressure — we will recommend the right grade and quantity.