SIGRAFLEX® Hochdruck flat gasket with inner and outer eyelet as well as outer centring ring

  • Article Number: 3885FD33
  • Material: 3885
  • Profile: FD33
The base material SIGRAFLEX® Hochdruck is fitted with an inner and outer eyelet. A centring ring is fitted to the outer eyelet.The double-eyelet channels the graphite which allows the use at temperatures of above 400 °C up to 600 °C.
Article Number

Operating data

Temperatur (min) -250 °C
Temperatur (max) 600 °C
Pressure (max) 250 bar

Gasket characteristics DIN 2505 V

K0×Kd [N/mm] 50 × bd
k1 [mm] 1,3 × bd

Gasket characteristics DIN 28090

бVO [N/mm²] 250
бVU 0,1 [N/mm²] 50
m (DIN 28090) 1.3
бBO 300 °C [N/mm²] 200

Gasket characteristics ASME

m (ASME) 2.5
Y [PSI] 7300

Approvals and test reports

TA Luft 2002 (VDI 24A0/2200)
BAM oxygen
BAM oxygen (liquid)
Gas (DIN 3535-6)
EG 1935/2004

Flange shapes

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


Data Sheet
EN | Last Changed 2023-12-01

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 2023-12-01 13:55:35

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