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Kammprofildichtung (ballig), Graphitauflage , Profil KD06-KD14-KD24-KD34, WS 1.4571/3803, Dichtungsdicke 5 mm, Rev. 01

Type of gasket: Kammprofile gasket
Gasket manufacturer: IDT Industrie- und Dichtungstechnik GmbH
Gasket label: Kammprofildichtung (ballig) mit und ohne Zentrierring, Graphitauflage , Profil KD06-KD14-KD24-KD34, WS1.4571/3803, Dichtungsdicke 5 mm, Rev. 01
maximum temperature: 400 °C
maximum pressure: 80 bar

Inhaltsverzeichnis

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Gasket thickness under load eG

Gasket thickness eG / mm
Gasket stress / MPa 20°C
0 4.835
1 4.748
20 4.095
30 4.043
40 4.012
50 3.995
60 3.982
80 3.965
100 3.951
120 3.934
140 3.919
160 3.902
180 3.885
200 3.873
220 3.88
240 3.844
260 3.826
280 3.809
300 3.79
320 3.774
340 3.768
360 3.74
380 3.724
400 3.71
420 3.697
460 3.67

Gasket deformation under load ΔeG

Gasket deformation ΔeG / mm
Gasket stress / MPa 20°C
0 0.000
1 0.087
20 0.740
30 0.792
40 0.823
50 0.840
60 0.853
80 0.870
100 0.884
120 0.901
140 0.916
160 0.933
180 0.950
200 0.962
220 0.955
240 0.991
260 1.009
280 1.026
300 1.045
320 1.061
340 1.067
360 1.095
380 1.111
400 1.125
420 1.138
460 1.165

Maximum allowable gasket stress QSmax

Temperature / °C QSmax / MPa
20 500
200 500
400 500

Modulus of elasticity EG

Modulus of elasticity EG / MPa
Gasket stress / MPa 20°C 200°C 400°C
20 3431 4665 12006
30 6918 8408 7162
40 5905 7579 7588
50 9037 7387 9452
60 10805 9199 14672
80 13599 12688 16358
100 21019 17494 11697
120 18473 18500 22210
140 23133 24464 17760
160 24516 25135 18604
180 23006 35755 23997
200 34065 122479 22992
220 56903 46121 26378
240 49101 40716 34959
260 42656 53799 51607
280 60143 59970 37330
300 68964 67233 34444
320 85000 56953 37862
340 103057 74226 41322
360 132262 83404 47623
380 101190 73685 136186
400 183886 154673
420 246681 129927 95606
440 122269 66605
460 20907 150205 111986
480 177292 138637
500 117982 306694

Creep/relaxation factor PQR

Creep/relaxation factor PQR
Gasket stress / MPa 20°C 200°C 400°C
30 0.99 0.86 0.74
50 1 0.9 0.83
90 1 0.93 0.89
150 1 0.95 0.9
500 0.99 0.98 0.92

Minimum required gasket stress in assembly Qmin(L)

Minimum required gasket stress Qmin(L) / MPa
Leakage rate / mg/m/s 10 bar 40 bar 80 bar
10⁰ 5 5 20
10⁻¹ 5 9 20
10⁻² 9 18 24
10⁻³ 23 32 41
10⁻⁴ 36 47 53
10⁻⁵ 50 62 67
10⁻⁶ 65 80 87
10⁻⁷ 87 131 128
10⁻⁸ 137

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

Minimum required gasket stress at internal pressure 80 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 Kammprofildichtung (ballig) mit und ohne Zentrierring, Graphitauflage , Profil KD06-KD14-KD24-KD34, WS1.4571/3803, Dichtungsdicke 5 mm, Rev. 01 can be assigned to the categorie 3 : "Gaskets based on flexible graphite". Therefore, the following friction coefficients can be considered:

Temperature / °C Friction coefficient
20 °C 0.22