Kammprofildichtung, PTFE Soft Auflage, Profil KD01-KD10-KD20-KD30, WS 1.4571/7739, Dichtungsdicke 4,7 mm, Rev. 00
Type of gasket:
Kammprofile gasket
Gasket manufacturer:
IDT Industrie- und Dichtungstechnik GmbH
Gasket label:
Grooved gasket, PTFE Soft layer, Profile KD01-KD10-KD20-KD30, WS 1.4571/7739, thickness 4,7 mm, Rev. 00
maximum temperature:
200 °C
maximum pressure:
80 bar
Gasket thickness under load eG
Gasket thickness eG / mm
Gasket stress / MPa
20°C
0
4.58
1
4.41
20
3.94
30
3.92
40
3.9
50
3.89
60
3.89
80
3.88
100
3.87
120
3.87
140
3.86
160
3.86
180
3.85
200
3.84
220
3.83
240
3.82
260
3.81
280
3.8
300
3.78
320
3.77
340
3.75
360
3.73
380
3.72
400
3.7
420
3.67
440
3.64
460
3.62
480
3.59
500
3.56
Maximum allowable gasket stress QSmax
Temperature / °C
QSmax / MPa
20
500
100
500
150
500
200
500
Modulus of elasticity EG
Modulus of elasticity EG / MPa
Gasket stress / MPa
20°C
100°C
150°C
200°C
20
6738
30
10111
4317
40
13300
53107
77265
50
16426
33069
78376
60
19335
58379
64885
46578
80
26942
44489
28031
100
32653
33158
64413
31622
120
37520
53134
36006
140
39235
59258
48571
36367
160
42465
52207
47509
41403
180
44304
52682
52437
40073
200
46821
41424
52701
35013
220
51145
40665
58319
32294
240
53202
33288
59323
37242
260
54353
34042
58121
39285
280
55605
45554
60007
56489
300
57342
55429
61959
40337
320
62042
63539
65330
57630
340
63683
137110
68270
91519
360
67617
84971
69372
73503
380
71834
74977
70020
70958
400
74970
101635
73604
102969
420
77312
80065
80324
121339
440
78635
75541
79733
120489
460
80350
116165
83554
480
81385
115104
87446
113244
500
87489
89140
94244
199541
Creep/relaxation factor PQR
Creep/relaxation factor PQR
Gasket stress / MPa
20°C
100°C
150°C
200°C
30
0.9
0.74
0.73
0.7
50
0.97
0.9
0.71
0.75
100
0.99
0.83
0.75
0.79
500
0.99
0.96
0.95
0.94
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
6
20
10⁻¹
6
15
20
10⁻²
16
23
27
10⁻³
26
31
35
10⁻⁴
33
37
46
10⁻⁵
39
46
58
10⁻⁶
52
59
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 Grooved gasket, PTFE Soft layer, Profile KD01-KD10-KD20-KD30, WS 1.4571/7739, thickness 4,7 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
Historie EN 15333