SIGRAFLEX® Hochdruck Pro flat gasket with inner eyelet and pre-compression in the outer sealing area

The basic structure corresponds to the Sigraflex Hochdruck flat gasket with inner eyelet. However, the Gasket is additionally pre-compressed in the outer area. Due to the reduced surface area, lower surface pressures are required when installing the flat gasket.

Article Number

3888FD11

Material

3888

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]
15 × bd
k1 [mm]
1,3 × bd

Gasket characteristics DIN 28090

6vo [N/mm2]
230
6vu 0,1 [N/mm2]
15
m (DIN 28090)
1.3
6BO 150 °C [N/mm2]
180
6BO 300 °C [N/mm2]
160

Gasket characteristics ASME

m (ASME)
2.5
Y [PSI]
3000

Approvals & Test Reports

TA Luft 2002 (VDI 24A0/2200)
DIN EN13555 (TA Luft 2021)
Blow-out resistance
BAM oxygen
BAM oxygen (liquid)
Gas (DIN 3535-6)

Flange Shapes

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