SIGRAFLEX® Economy flat gasket

  • Article Number: 3840FD01
  • Material: 3840
  • Profile: FD01
SIGRAFLEX ECONOMY flat gaskets combine flexible graphite foils with one or two stainless steel foils (0.05 mm) for maximum stability. Thanks to oxidation and passive corrosion inhibitors, they guarantee outstanding resistance. Their chemical robustness and adaptability make them highly versatile. They remain soft and retain their compression and springback over long periods of time in the event of temperature fluctuations. Plus point: the bonded composite is PFAS-free.
Article Number

Operating data

Temperatur 450 °C
Temperatur (min) -269 °C
Temperatur (max) 550 °C
Pressure (max) 100 bar

Gasket characteristics DIN 2505 V

K0×Kd [N/mm] 35
k1 [mm] 1,3

Gasket characteristics DIN 28090

бVO [N/mm²] 140
бVU 0,1 [N/mm²] 35
m (DIN 28090) 1.3
бBO 300 °C [N/mm²] 100

Gasket characteristics ASME

m (ASME) 2
Y [PSI] 1500

Approvals and test reports

Gas (DIN 3535-6)

Flange shapes

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


Data Sheet
EN | Last Changed 2024-01-02

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 2024-01-02 09:22:52

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