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Elastikdichtung mit Diffusionssperre - Centellen®WS 3822 Faser-Einlage, Profil ED10, WS 7110/3822, Dichtungsdicke 4 mm, Rev. 02

Type of gasket: Sheet gasket with PTFE envelop
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Elastikdichtung mit Diffusionssperre - Centellen®WS 3822 Faser-Einlage, Profil ED10, WS 7110/3822, Dichtungsdicke 4 mm, Rev. 02
maximum temperature: 200 °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 200°C
0 4.21 4.21 4.235
1 4.037 4.01 4.097
5 3.941 3.86 4.012
10 3.888 3.798 3.924
15 3.845 3.732 3.734
20 3.807 3.652 3.416
30 3.741 3.455 1.952
40 3.672 3.213
50 3.594 2.528
60 3.511 1.879

Gasket deformation under load ΔeG

Gasket deformation ΔeG / mm
Gasket stress / MPa 20°C 100°C 200°C
0 0.000 0.000 0.000
1 0.173 0.200 0.138
5 0.269 0.350 0.223
10 0.322 0.412 0.311
15 0.365 0.478 0.501
20 0.403 0.558 0.819
30 0.469 0.755 2.283
40 0.538 0.997
50 0.616 1.682
60 0.699 2.331

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 60
100 60
200 30

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 100°C 200°C
5 774 535 848
10 843 705 789
15 1183 980 758
20 1378 1259 860
30 1880 1624 923
40 2489 1878
50 2925 2907
60 2605 2202

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 100°C 200°C
10 0.92 0.66 0.54
20 0.44
30 0.92 0.6 0.37
60 0.87 0.48

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 5
10⁻² 5 5
10⁻³ 5 5
10⁻⁴ 5 10

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 - Centellen®WS 3822 Faser-Einlage, Profil ED10, WS 7110/3822, Dichtungsdicke 4 mm, Rev. 02 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