prEN 1759-4

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges

General information

40.60 Close of voting   Mar 26, 2022

CEN

CEN/TC 74 Flanges and their joints

European Norm

23.040.60   Flanges, couplings and joints

Scope

This document specifies requirements for Class designated circular flanges for pipes, valves, fittings and accessories made from aluminium alloy in the range of DN 15 to DN 600 (NPS 1/2 to NPS 24) and Class 150 to Class 300 (see Table 1).
This document specifies the types of flanges and their facings, dimensions and tolerances, bolt sizes, surface finish of jointing faces, marking and materials together with associated pressure temperature (p/T) ratings.
The flanges are intended to be used for piping as well as for pressure vessels.

Related legislation

Legislation related to this standard

2014/68/EU

Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment

Life cycle

PREVIOUSLY

PUBLISHED
EN 1759-4:2003

NOW

IN_DEVELOPMENT
prEN 1759-4
40.60 Close of voting
Mar 26, 2022