Flachdichtung UNIFLUOR® PTFE mit Füllstoff Bariumsulfat, Profil FD01, WS 7553, Dichtungsdicke 2 mm, Rev. 01

7553FD01
UNIFLUOR® WS 7553 is a high quality biaxially orientated sealing material on PTFE basis, filled with barium sulphate.
Article Number
7553FD01
Material
7553
Profile
FD01
FD01
Type of gasket: Type IBC - flat gasket
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Flachdichtung UNIFLUOR® PTFE mit Füllstoff Bariumsulfat, Profil FD01, WS 7553, Dichtungsdicke 2 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 150°C 200°C
0 1.985 2.03 2.04 2.025
1 2.034 2.013 2 2.018
5 2.016 2.002 1.992 2.007
10 2.005 1.982 1.923 1.858
15 1.994 1.914 1.735 1.602
20 1.974 1.776 1.563 1.412
30 1.92 1.499 1.3 1.182
40 1.823 1.305 1.145 1.048
50 1.7 1.174
60 1.592
80 1.431

Gasket deformation under load ΔeG

Gasket deformation ΔeG / mm
Gasket stress / MPa 20°C 100°C 150°C 200°C
0 0.000 0.000 0.000 0.000
1 -0.049 0.017 0.040 0.007
5 -0.031 0.028 0.048 0.018
10 -0.020 0.048 0.117 0.167
15 -0.009 0.116 0.305 0.423
20 0.011 0.254 0.477 0.613
30 0.065 0.531 0.740 0.843
40 0.162 0.725 0.895 0.977
50 0.285 0.856
60 0.393
80 0.554

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 70
100 50
150 40
200 40

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 100°C 150°C 200°C
5 1363 2553 998 673
10 2938 4877 1281 742
15 2716 2679 1398 934
20 1992 2554 1498 1144
30 2473 2527 1530 1280
40 2384 2989 1592 1389
50 2469 2984
60 2734
80 3073

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 100°C 150°C 200°C
10 0.76 0.63
20 0.96 0.63 0.5 0.41
30 0.51 0.41 0.33
40 0.85 0.47 0.36 0.32
50 0.46
60 0.82
70 0.8

Minimum required gasket stress in assembly Qmin(L)

Minimum required gasket stress Qmin(L) / MPa
Leakage rate / mg/m/s 10 bar 16 bar 40 bar
10⁰ 5 8 15
10⁻¹ 14 17 22
10⁻² 21 23 28
10⁻³ 26 28 33
10⁻⁴ 30 35 39
10⁻⁵ 44 57

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 16 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 UNIFLUOR® PTFE mit Füllstoff Bariumsulfat, Profil FD01, WS 7553, Dichtungsdicke 2 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