Flanges according to EN – Flange dimensions and flange calculation

Round steel flanges according to EN 1092-1
Calculation according to DIN EN 13445-3, Chapter 11

The module package contains the dimensions of the flanges listed in EN 1092-1and associated components for pressure stages PN 6 and higher.

The flange calculation is based on DIN EN 13445-3 chapter 11 and the Taylor Forge method.

In principle, DIN EN 13445-3, chapter 11 permits a calculation for internal and external pressure for a wide variety of flange types and covers almost all possible designs:

  • Calculation under internal or external pressure
  • Flanges with either full face or narrow face gaskets
  • Flanges with O-ring gasket
  • Internal flanges
  • Split loose-flange
  • Seal-welded flanges

The package includes the dimensions of flanges and gaskets as well as gasket characteristics. After selecting the pressure stage and nominal diameter, these modules supply the dimensions of the corresponding flanges and associated components, including the sealing surface geometry, to the calculation module, which greatly simplifies data input.

Included are:

  • Welding flanges, loose flanges, blind flanges
  • Welding neck flanges, slip-over welding flanges
  • Threaded flanges, integral flanges
  • hub, lap


Module package EN11 Overview

Module Type Code
EN11 Flange calculation EN 13445-3 chapter 11
AFLT Flange dimensions ANSI / ASME B16.5
1092 Flange dimensions EN 1092-1
SFLA Flange dimensions DIN 28036
VFLN Flange dimensions DIN 28034
1514N Gasket dimensions and gasket characteristics EN 1514-1, characteristics according EN 1591-2

Module package EN11 with flange modules AFLT + SFLA + VFLN and 2 gasket modules 1514N + 159N

Price: see price list


  • DIN EN 1092-1
  • DIN EN 13445-3 chapter 11
  • as well as the standards listed in the table

see also:

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