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Elastikdichtung mit Diffusionssperre - Edelstahlwellring - Centellen® WS 3822 Faser-Einlage, Profil ED30, WS 1.4571/7110/3822, Dichtungsdicke 6,5 mm, Rev. 00

Type of gasket: Sheet gasket with PTFE envelop
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Elastikdichtung mit Diffusionssperre - Edelstahlwellring - Centellen® WS 3822 Faser-Einlage, Profil ED30, WS 1.4571/7110/3822, Dichtungsdicke 6,5 mm, Rev. 00
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 6.74 6.745 6.755
1 6.492 6.471 6.473
5 6.186 6.086 6.009
10 6.017 5.858 5.787
15 5.878 5.624 5.475
20 5.75 5.401 5.174
30 5.502 4.734 4.32
40 5.183 4.292 3.994
50 4.678 4.012 3.707
60 4.474

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 0.248 0.274 0.282
5 0.554 0.659 0.746
10 0.723 0.887 0.968
15 0.862 1.121 1.280
20 0.990 1.344 1.581
30 1.238 2.011 2.435
40 1.557 2.453 2.761
50 2.062 2.733 3.048
60 2.266

Maximum allowable gasket stress QSmax

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

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 100°C 150°C
5 390 297 352
10 583 528 482
15 804 739 603
20 945 828 759
30 1239 1118 1028
40 1564 1472 1383
50 1993 1969 1802
60 2376

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 100°C 150°C
20 0.83 0.44 0.35
30 0.84 0.42 0.34
50 0.5 0.4
60 0.86

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 24
10⁻⁵ 45

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 - Edelstahlwellring - Centellen® WS 3822 Faser-Einlage, Profil ED30, WS 1.4571/7110/3822, Dichtungsdicke 6,5 mm, Rev. 00 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