Statotherm HD 9593/HD

Statotherm HD 9593/HD

Statotherm HD 9593/HD


Statotherm HD 9593/HD is a reinforced, multilayer graphite gasket sheet made from 0.5 mm thick layers of high quality impregnated graphite foil (purity ≥ 99.85 %) combined without adhesive with 0.05 mm thick stain- less steel foil layers (AISI 316 (L)). Statotherm HD 9593/HD is outstanding for use in applications where high surface pressures are combined with high operating pressure. This seal is particularly useful where there are increased requirements in terms of seal tightness and operational safety. Equates to the SGL Sigraflex Hochdruck.


  • Very high maximum surface pressure
  • No embrittlement (contains no adhesive)
  • High mechanical strength

Operating range

Pressure: p = 250 bar
  • Continuous operation:
    t = -250 °C ... +450 °C
  • Steam: tmax+550°C
Recommended surface roughness:
RZ = 12.5 ... 50 μm

Chemical resistance: pH = 0 … 14
Resistant to almost all organic and inorganic acids, alkalis, oils and solvents. Not suitable for use in highly oxidizing media or in elementary fluorine, bromine, sulfur trioxide or ozone (O3) > 150 °C.

Standards and approvals

  • TA Luft in various flanged versions and unflanged for tongue-and-groove flanges
  • BAM (upon request)
  • DVGW
  • Fire Safe API 607
  • Blow-out resistance (TÜV Süd)
  • Germanischer Lloyd
  • TRD 401


9593/HDP (sheets)
9593/HDR (rings and cuts)
9593/HDMH (manhole gasket according German TRD 401)
9593/HDPpro (impregnated for low leakage application acc. TA-Luft)
9593/HDRIG (with inner eyelet made of stainless steel (1.4571), thickness: 0.15 mm)
9593/HDOR (reduced sulphur content < 200 ppm)


For safe operation, always use seals that are dry and undamaged.

Forms of supply

  • Sheets:
    1.000 x 1.000, 1.500 x 1.500 mm
    1,0 / 1,5 / 2,0 / 3,0 / 4,0 mm thickness
  • Rings and molded parts:
    Standard dimensions as per DIN EN 1514-1 or ASME B16.21
  • Manhole gasket to TRD 401, 3.0 mm thick

Similar products

Statotherm 1P 9593/1P

Statotherm 1P 9593/1P is a gasket sheet made from flexible, expanded graphite foils (purity > 98 %) which can be combined with a stainless steel sheet insert (material: 316 (L), 0.05 mm thick). Statotherm 1P 9593/1P is a gasket with a particularly adaptable graphite overlay that allows it to be used with low surface pressures and in fragile flanged connections.

Statotherm 9593/5pro

Statotherm 5pro 9593/5pro an adhesive-free graphite gasket sheet made from flexible graphite foil reinforced with one or two stainless steel 316 tanged inserts. The gasket sheet is impregnated to improve handling and reduce leakage. Equates to the SGL Sigraflex Universal Pro.

Statotherm P foil 9591/P

Statotherm P Foil 9591 is a gasket sheet consisting of unreinforced, flexible graphite foil with a purity of ≥ 99.85% and a low ash content.Statotherm P foil 9591 a basic gasket material without measurable cold or warm flow, making it usable as a gasket material for fittings and pumps in all branches of industry (especially for emergency repairs and complicated shapes). Equates to the SGL Sigraflex standard.

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Technical Datasheet HD Statotherm TDB 9593