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Elastikdichtung mit Diffusionssperre - SIGRAFLEX® Emaille-Einlage, Profil ED10, WS 7110/3825, Dichtungsdicke 4 mm, Rev. 01

Type of gasket: Sheet gasket with PTFE envelop
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Elastikdichtung mit Diffusionssperre - SIGRAFLEX® Emaille-Einlage, Profil ED10, WS 7110/3825, Dichtungsdicke 4 mm, Rev. 01
maximum temperature: 150 °C
maximum pressure: 40 bar

Inhaltsverzeichnis

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Gasket thickness under load eG

Gasket thickness eG / mm
Gasket stress / MPa 20°C 100°C 150°C
0 4.2 4.195 4.235
1 4.115 4.12 4.12
20 3.017 2.957 2.887
30 2.86 2.769 2.612
40 2.746 1.922
50 2.635 1.39
60 2.444

Gasket deformation under load ΔeG

Gasket deformation ΔeG / mm
Gasket stress / MPa 20°C 100°C 150°C
0 0.000 0.000 0.000
1 0.085 0.075 0.115
20 1.183 1.238 1.348
30 1.340 1.426 1.623
40 1.454 2.273
50 1.565 2.805
60 1.756

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 60
100 50
150 30

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 100°C 150°C
20 499 550 524
30 844 877 811
40 1156 1510
50 1464 1736
60 2565

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 100°C 150°C
10 0.93 0.85 0.81
20 0.97 0.9 0.83
30 0.96 0.85 0.73
50 0.66
60 0.81

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 10 10
10⁻¹ 10 10
10⁻² 10 10
10⁻³ 10 10
10⁻⁴ 10 14

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 Elastikdichtung mit Diffusionssperre - SIGRAFLEX® Emaille-Einlage, Profil ED10, WS 7110/3825, Dichtungsdicke 4 mm, Rev. 01 can be assigned to the categorie 2 : "Gaskets based on filled PTFE". Therefore, the following friction coefficients can be considered:

Temperature / °C Friction coefficient
20 °C 0.23