Spiraltherm Graphite 9584

Spiraltherm Graphite 9584

Spiraltherm Graphite 9584


Spiraltherm Graphite 9584 spiral wound gaskets are made of a V-shape profiled stainless steel tape with spiral wise winded graphite filler tapes. Both ends of the steel tape are spot-welded. These metallic gaskets are manufactured in several combinations of materials with a wide range of dimensions and geometry. Spiraltherm Graphite 9584 spiral wound gaskets are widely used in refineries, the chemical and petrochemical industry as well as in the power generation industry.


  • Solid construction
  • Easy handling
  • Excellent load distribution
  • Easy installation
  • Exceptionally high operating reliability
  • Great resilience (approx. 10 % of un-compressed height)
  • Stability and sealability even under severe conditions
  • Stable and reliable sealing performance even under frequent pressure cycle

Operating range

Pressure: p = up to 400 bar (Class 2,500 lbs) for flanges according to EN or ASME standard
Temperature: t = -200 °C … +550 °C
(higher temp. possible in inert atmosphere)
Chemical resistance: pH = 0 … 14
Optimised roughness grade: RZ = 12.5 - 30 µm


Metal winding:
Stainless steels - most common are: AISI 316L, 316, 304, 304L, 321 (1.4541), 316 Ti (1.4571), 347…
Windings are also available e.g. in Monel®, Incolloy®, Hastelloy®, Titanium…
Filler materials: To prevent oxidation at elevated temperatures, a high quality graphite with oxidation inhibitor can be offered.

Standards and approvals

  • TA-Luft for # 9584GIA
  • Germanischer Lloyd 44510 HH
  • BAM (on request)


9584/... (98 % pure graphite filler)
9594/... (99,85 % pure graphite filler)
9594/...R (graphite filler with low sulfur < 200 ppm and water soluble sulfate < 100 ppm cont)
9584/...TZ (with additional PTFE-sealing zone, T < 280 °C)
9594/...TZ (with additional PTFE-sealing zone, T < 280 °C)
9595/... (pure PTFE filler, T < 280 °C)
9596/... (mica filler, T < 900 °C)


Spiraltherm Graphite 9584 gaskets filled with high quality graphite are Fire Safe.

Forms of supply

95.../NF for flanges with tongue and groove
95.../NFS for flanges with tongue and groove with compression curve
95.../VRI for flanges with projection and recess with inner ring
95.../GIA for flanges with flat faced with inner and outer ring
95.../GA for flanges with flat face with outer ring

Product variants

Spiraltherm Graphite 9584/GA
Spiral wound gasket with outer guide ring.
Standard type for raised face flange connections.

Spiraltherm Graphite 9584/GIA
Spiral wound gasket with inner and outer guide ring. This style offers the best performance for raised-face flange connections.
The inner ring is used to provide:
- Avoid over-compression at elevated seating loads in high pressure service
- Reduced turbulence within the flange area and protects against corrosion or erosion
- Improvement of the load distribution over the gasket

Spiraltherm Graphite S 9584/NF
Spiral wound gasket without guide or inner ring.
This style of gasket is used in load-bearing flange configurations, such as tongue and groove flanges.
Standard dimensions according to EN/ASME.
Spiraltherm Graphite 9584/VRI
Spiral wound gasket with inner ring.
Mainly used for male and female flanges or projection and recess flanges.
An inner ring is necessary as a compression stop.

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