Elastikdichtung mit Diffusionssperre - Unifluor® Einlage, Profil ED10, WS 7110/7550, Dichtungsdicke 4 mm, Rev. 01

7110/7550ED10
The PTFE-envelope of the sealing system consists of Dyneon™ TFM™ 1600 and has an interior diffusion barrier [3.0 mm]. UNIFLUOR® WS 7550 insert is 3.0 mm thick. All materials in this combination gasket are FDA-conform.Complies with TA Luft and VDI 2290¹.
Article Number
7110/7550ED10
Material
7110/7550
Profile
ED10
ED10
Type of gasket: Sheet gasket with PTFE envelop
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Elastikdichtung mit Diffusionssperre - Unifluor® Einlage, Profil ED10, WS 7110/7550, Dichtungsdicke 4 mm, Rev. 01
maximum temperature: 200 °C
maximum pressure: 40 bar

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Gasket thickness under load eG

Gasket thickness eG / mm
Gasket stress / MPa 20°C 100°C 200°C
0 4.305 4.25 4.26
1 4.136 4.098 4.124
5 4.044 3.947 3.862
10 4.005 3.75 2.772
15 3.929 3.031 2.082
20 3.73 2.511 1.814
30 2.81 1.924 1.438
40 2.391
50 2.089

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 0.169 0.152 0.136
5 0.261 0.303 0.398
10 0.300 0.500 1.488
15 0.376 1.219 2.178
20 0.575 1.739 2.446
30 1.495 2.326 2.822
40 1.914
50 2.216

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 50
100 30
200 30

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 100°C 200°C
5 880 466 198
10 1025 358 160
15 1014 315 259
20 976 415 365
30 1097 693 488
40 1444
50 1935

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 100°C 200°C
10 0.58 0.39
20 0.79 0.45 0.26
30 0.79 0.49 0.28
50 0.82

Minimum required gasket stress in assembly Qmin(L)

Minimum required gasket stress Qmin(L) / MPa
Leakage rate / mg/m/s 10 bar 25 bar 40 bar
10⁰ 5 5 5
10⁻¹ 5 5 5
10⁻² 5 5 5
10⁻³ 5 5 6
10⁻⁴ 5 5 9
10⁻⁵ 39 14
10⁻⁶ 20

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 25 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 - Unifluor® Einlage, Profil ED10, WS 7110/7550, 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