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

  • Article Number: 3885FD11
  • Material: 3885
  • Profile: FD11
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.
Article Number

Operational Data

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

Gasket Characteristics DIN 2505 V

K0×Kd [N/mm] 20 × bd
k1 [mm] 1,3 × bd

Gasket Characteristics DIN 28090

бVO [N/mm²] 200
бVU 0,1 [N/mm²] 20
m 1.3
бBO 150 °C [N/mm²] 180
бBO 300 °C [N/mm²] 130

Gasket Characteristics ASME

m 2.5
Y [PSI] 2200

Approvals and 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 Types

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


Data Sheet
EN | Last Changed 2023-09-29

General information: All information given in this Technical Information sheet represents our current level of knowledge and serves as information on our products and their respective scopes. It is not meant to ensure any particular properties of any product or the suitability of any product for any specific application, neither does it create any liability on our part.

Last Changed 2023-09-29 20:05:13

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