Kammprofildichtung, SIGRAFLEX® MF Auflage, Profil KD01-KD10-KD20-KD30, WS 1.4571/3871, Dichtungsdicke 5 mm, Rev. 01
Type of gasket:
Kammprofile gasket
Gasket manufacturer:
IDT Industrie- und Dichtungstechnik GmbH
Gasket label:
Grooved gasket, SIGRAFLEX® MF layer, Profile KD01-KD10-KD20-KD30, WS 1.4571/3871, thickness 5 mm, Rev. 01
maximum temperature:
300 °C
maximum pressure:
40 bar
Gasket thickness under load eG
Gasket thickness eG / mm
Gasket stress / MPa
20°C
0
5.215
1
5.137
20
4.48
30
4.41
40
4.37
50
4.35
60
4.34
80
4.31
100
4.29
120
4.28
140
4.27
160
4.27
180
4.26
200
4.25
220
4.24
240
4.23
260
4.22
280
4.2
300
4.18
320
4.16
340
4.14
360
4.12
380
4.1
400
4.07
420
4.05
440
4.02
460
3.99
480
3.96
500
3.93
Maximum allowable gasket stress QSmax
Temperature / °C
QSmax / MPa
20
500
150
500
300
500
Modulus of elasticity EG
Modulus of elasticity EG / MPa
Gasket stress / MPa
20°C
150°C
300°C
20
2544
3066
4935
30
5655
5099
7084
40
6273
8559
7497
50
7187
7170
8899
60
13484
12770
8287
80
11670
10352
11715
100
13485
16505
12278
120
24376
21021
19671
140
25568
24444
22410
160
33598
22365
22070
180
32227
23276
24891
200
31118
29702
22682
220
31744
27602
30765
240
34602
31498
34634
260
51700
33997
40058
280
57943
57887
43073
300
52799
75393
54950
320
45066
41021
55427
340
64011
43604
55958
360
88826
59499
65750
380
94960
52220
69516
400
88878
71092
54649
420
100056
109579
80306
440
101864
86692
136746
460
106880
75883
82426
480
113314
123880
73476
500
149075
93095
88607
Creep/relaxation factor PQR
Creep/relaxation factor PQR
Gasket stress / MPa
20°C
150°C
300°C
30
0.96
0.81
0.65
80
1
0.94
0.81
500
0.99
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
10⁰
10
10
10⁻¹
10
14
10⁻²
10
22
10⁻³
32
44
10⁻⁴
61
67
10⁻⁵
100
107
10⁻⁶
139
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 Grooved gasket, SIGRAFLEX® MF layer, Profile KD01-KD10-KD20-KD30, WS 1.4571/3871, thickness 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
Historie EN 15333