British Standards Institution

Source:: CEN
Committee:: PSE/15 - Flanges
Categories:: Flanges, couplings and joints
Number of comments:: 0

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.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

23/07/2021

3. Public Comments

Public Comments start date:

16/12/2021

Public Comments end date:

15/02/2022

4. Comment Resolution

Comment Resolution start date:

09/04/2024

5. Approval

6. Publication

Publication start date:

27/06/2024

Learn more about the standards development process

Standards Development

BS EN 1759-4 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated. - Part 4: Aluminium alloy flanges

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