BS ISO 22431:2018 pdf download

BS ISO 22431:2018 pdf download

BS ISO 22431:2018 pdf download.Aerospace series — Pipe coupling 8°30′ — Dynamic beam seal end for ferrule, welded — Geometric configuration
1 Scope
This document specifies the dimensions of the dynamic beam seal end for welded ferrules for pipe couplings 8°30′, nominal pressure up to 28 000 kPa, for aerospace applications.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2656, Aerospace series — Pipe coupling — Coupling ends, welded — Geometric configuration
EN 3275, Aerospace series — Pipe coupling 8°30′ up to 28 000 kPa — Dynamic beam seal — Metric series — Technical specification
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at
— ISO Online browsing platform: available at
4 Required characteristics
4.1 Configuration — Dimensions
According to Figure 1 and Table 1.
Dimensions not specified are at the manufacturer’s discretion, provided that the qualification and acceptance requirements of EN 3275, type II are met.
4.2 Surface roughness
According to Figure 1, unless otherwise specified in the design documentation.