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Flachdichtung SIGRAFLEX® Universal Pro, Profil FD01, WS 3865, Dichtungsdicke 3 mm, Rev. 01

Type of gasket: Type IBC - flat gasket
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Flachdichtung SIGRAFLEX® Universal Pro, Profil FD01, WS 3865, Dichtungsdicke 3 mm, Rev. 01
maximum temperature: 300 °C
maximum pressure: 40 bar

Inhaltsverzeichnis

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Gasket thickness under load eG

Gasket thickness eG / mm
Gasket stress / MPa 20°C
20 1.897
30 1.764
40 1.684
50 1.638
60 1.596
80 1.535
100 1.495
120 1.462
140 1.437
160 1.41
180 1.392

Gasket deformation under load ΔeG

Gasket deformation ΔeG / mm
Gasket stress / MPa 20°C
20 0.000
30 0.133
40 0.213
50 0.259
60 0.301
80 0.362
100 0.402
120 0.435
140 0.460
160 0.487
180 0.505

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 180
150 160
300 140

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 150°C 300°C
20 358 447 414
30 629 649 586
40 789 941 811
50 1265 1135 1300
60 1326 1314 1191
80 1786 1835 1747
100 2328 2254 1949
120 2679 2674 2892
140 3182 3149 2981
160 3293 3675
180 4090

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 150°C 300°C
30 0.97 0.92 0.9
50 0.98 0.96 0.95
140 0.99
160 0.99
180 1

Minimum required gasket stress in assembly Qmin(L)

Minimum required gasket stress Qmin(L) / MPa
Leakage rate / mg/m/s 10 bar 40 bar
10⁰ 5 5
10⁻¹ 5 8
10⁻² 7 18
10⁻³ 21 37
10⁻⁴ 42 62
10⁻⁵ 63 83
10⁻⁶ 86 112
10⁻⁷ 118 150

Minimum required gasket stress in service QSmin(L) depending on initial gasket stress QA

Minimum required gasket stress at internal pressure 10 bar

Minimum required gasket stress at internal pressure 40 bar

Friction coefficient µG

The friction coefficient between gasket and flange surface was determined for different types of gasket materials in an ESA research project.

The gasket Flachdichtung SIGRAFLEX® Universal Pro, Profil FD01, WS 3865, Dichtungsdicke 3 mm, Rev. 01 can be assigned to the categorie 3 : "Gaskets based on flexible graphite". Therefore, the following friction coefficients can be considered:

Temperature / °C Friction coefficient
20 °C 0.22