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SIGRAFLEX® Hochdruck flat gasket with inner eyelet and pre-compressed centering ring

Basic design corresponds to Sigraflex Hochdruck flat gaskets with inner eyelet. The seal is, however, also pre-compressed in the outer area. Lower surface stress is required during installation of the flat gasket due to the reduced surface area.

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Article Number

3885FD11

Material

3885

Profile

FD11

Description

Operating Data

Temperature
450 °C
Temperature (min)
-269 °C
Temperature (max)
550 °C
Pressure (max)
250 bar

Gasket characteristics DIN 2505 V

K0×Kd [N/mm2]
20 × bd
k1 [mm]
1,3 × bd

Gasket characteristics DIN 28090

6vo [N/mm2]
200
6vu 0,1 [N/mm2]
20
m (DIN 28090)
1.3
6BO 150 °C [N/mm2]
180
6BO 300 °C [N/mm2]
130

Gasket characteristics ASME

m (ASME)
2.5
Y [PSI]
2200

Approvals & Test Reports

TA Luft 2002 (VDI 24A0/2200)
Fire Safe Test
Blow-out resistance
BAM oxygen
BAM oxygen (liquid)
Gas (DIN 3535-6)
EG 1935/2004

Flange Shapes

Self-centering, Raised Face (form IBC)
With partition bars