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Novaphit SSTC

Novaphit SSTC Gasket Jointing combines the excellent temperature and media resistance of expanded graphite, with an expanded metal insert. The special geometry of the expanded metal produces a three-dimensional mechanical bond which provides outstanding stress relaxation and recovery properties.

Novaphit SSTC is a graphite gasket material with an insert consisting of acid-proof Stainless Steel (1.4404 AISI 316 L) suitable for the highest pressure and temperature requirements as well as excellent media resistance.

These properties make Novaphit SSTC the superior choice over others, even in applications that will involve a changing load. The expanded metal layer with its three dimensional non-intersection geometry make it superior to the standard graphite gaskets ith their tanged and flat metal inserts and shows its recovery properties in tongue and groove flanged connections.

Studies have shown that at a pressure rating of 40 MPa the leakage is approximately 50% lower for tanged metal gaskets.

Novaphit SSTC contains a graphite with a purity of at least 98% and proves this quality especially with its outstanding loss on ignition and oxidation values.

  • Properties
  • Suitable for temperatures between -200°C and 550°C
  • Insensitive to changing loads
  • Maximum adaptability to flange unevenness
  • High flexibility when sealing surfaces are unfavourable/faulty
  • Practically no hot creep
  • Universal chemical resistance
  • Maximum sealing performance in the flange
  • Use possible at internal pressure levels of up to 250 Bar

 

Approvals & Test : BAM, DVGW, Firesafe, GL
Colour : Graphite Grey
Material of Metal Insert : AISI 316L
Physical Properties
Thicknessmm1.001.502.003.00
Graphite Purity DIN 51 903 % >99% >99% >99% >99%
Density DIN 28 090-2 g/cm³ 1.65 1.45 1.35 1.25
Residual Stress 300°C DIN 52 913 N/mm² ≥45 ≥45 ≥45 ≥45
Compressibility ASTM F 36 J % 30 35 37 38
Recovery ASTM F 36 J % 22 20 15 15
Cold Compressibility DIN 28 090-2 % 28 32 35 37
Cold Recovery DIN 28 090-2 % 4 4 4 4
Hot Creep DIN 28 090-2 % 2 2 2 2
Hot Recovery DIN 28 090-2 % 2 2 2 2
Specific Leakage Rate din 3535-6 mg/m/s 0.04 0.06 0.07 009
Oxidation Value DIN 28 090-2 %/h ≤4 ≤4 ≤4 ≤4
Tensile Strength Transverse DIN 52 910 N/mm² 15 10 8 7
Total Chloride Content DIN 28 090-2 ppm ≤50 ≤50 ≤50 ≤50
Leachable Chloride Content QS-001-133 ppm ≤20 ≤20 ≤20 ≤20
Total Fluoride Content QS-001-133 ppm ≤50 ≤50 ≤50 ≤50
 

3 Products

1.0mm Novaphit SSTC Jointing

Excl. VAT: £145.69

Incl. VAT: £174.83

1.5mm Novaphit SSTC Jointing

Excl. VAT: £139.48

Incl. VAT: £167.38

2mm Novaphit SSTC Jointing

Excl. VAT: £163.80

Incl. VAT: £196.56

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