Need help?

EN 1591-1:2024 Standard

wave
Save  

  Keywords:

#calculation #method #gasket #required #large

  Directive

Pressure equipment Directive (2014/68/EU)

  Last Official Journal reference

Monday 12th of January 2026

  Description:

Flanges and their joints - Design rules for gasketed circular flange connections - Part 1: Calculation

  Purpose

This document defines a calculation method for bolted, gasketed, circular flange joints. Its purpose is to ensure structural integrity and control of leak tightness. It uses gasket parameters based on definitions and test methods specified in EN 13555:2014.The calculation method is not applicable to joints with a metallic contact out of the sealing face or to joints whose rigidity varies appreciably across gasket width. For gaskets in incompressible materials, which permit large deformations, the results given by the calculation method can be excessively conservative (i.e. required bolting load too high, allowable pressure of the fluid too low, required flange thickness too large, etc.).

  Publication

Monday 12th of January 2026

  Related Standards

EN 12952-3:2011

Pressure equipment Directive (2014/68/EU)

Water-tube boilers and auxiliary installations - Part 3: Design and calculation for pressure parts of the boiler

EN 12516-2:2014+A1:2021

Pressure equipment Directive (2014/68/EU)

Industrial valves - Shell design strength - Part 2: Calculation method for steel valve shells

EN 13348:2016

Pressure equipment Directive (2014/68/EU)

Copper and copper alloys - Seamless, round copper tubes for medical gases or vacuum

EN 1515-4:2021

Pressure equipment Directive (2014/68/EU)

Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/6...

EN 12735-1:2020

Pressure equipment Directive (2014/68/EU)

Copper and copper alloys - Seamless, round tubes for air conditioning and refrigeration - Part 1: Tubes for piping systems

EN ISO 4126-3:2020

Pressure equipment Directive (2014/68/EU)

Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (...

  Stay up to date

  ACCESS

Search for a standard
GO

Register

Already a member?
Login

  OTHER APPLICATIONS

If you are interested in DO160 tests, you can give a try to our other free of charge software:
CE-Marking assistant, Version: 1.3.0