ISO 22431-2018 PDF
Name in English:
St ISO 22431-2018
Name in Russian:
Ст ISO 22431-2018
Original standard ISO 22431-2018 in PDF full version. Additional info + preview on request
Full title and description
ISO 22431:2018 — Aerospace series — Pipe coupling 8°30' — Dynamic beam seal end for ferrule, welded — Geometric configuration. This International Standard specifies the geometric dimensions and configuration of the dynamic beam seal end used with welded ferrules in 8°30' pipe couplings designed for aerospace fluid systems (high-pressure applications).
Abstract
ISO 22431:2018 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.
General information
- Status: Published (confirmed in systematic review).
- Publication date: 14 March 2018 (Edition 1, published March 2018).
- Publisher: International Organization for Standardization (ISO).
- ICS / categories: 49.080 — Aerospace fluid systems and components.
- Edition / version: Edition 1 (2018).
- Number of pages: 4 pages.
Scope
This standard defines the geometric configuration and nominal dimensions of the dynamic beam seal end specifically for welded ferrules used with 8°30′ pipe couplings in aerospace applications. It applies to components designed for nominal pressures up to 28 000 kPa and is intended to ensure interchangeability, sealing performance and compatibility within aerospace fluid system assemblies.
Key topics and requirements
- Geometric configuration and dimensional specifications for the dynamic beam seal end of welded ferrules.
- Tolerances and critical dimensions required for sealing interfaces in 8°30′ pipe couplings.
- Application limits (nominal pressure up to 28 000 kPa) relevant to aerospace systems.
- Design considerations to ensure proper engagement with ferrules and mating coupling components.
- Requirements intended to support interchangeability and consistent sealing performance in aerospace piping.
Typical use and users
Used by aerospace component designers, hydraulic and fluid-system engineers, manufacturers of pipe couplings and ferrules, quality assurance and inspection personnel, procurement specialists specifying aerospace fluid-system parts, and certification bodies validating component conformity to aerospace practice.
Related standards
Other parts of the ISO aerospace pipe coupling series and related documents include (examples): ISO 22433:2018 (dynamic beam seal end for elbows, tees and crosses — geometric configuration), ISO 22436:2018 (thread end — geometric configuration), ISO 22438:2018 (thrust wires — related coupling components; note: lifecycle status may vary), and ISO 24568:2021 (metric series pipe coupling 8°30' — technical specification). Users should consult the ISO/TC 20/SC 10 portfolio for the full set of related aerospace fluid system standards.
Keywords
aerospace, pipe coupling, 8°30′, dynamic beam seal, ferrule, welded ferrule, geometric configuration, dimensions, high pressure, fluid systems, ISO/TC 20/SC 10
FAQ
Q: What is this standard?
A: ISO 22431:2018 is an International Standard that specifies the geometric dimensions and configuration for the dynamic beam seal end used with welded ferrules in 8°30′ pipe couplings for aerospace fluid systems.
Q: What does it cover?
A: It covers the shape, critical dimensions and tolerance guidance for the dynamic beam seal end (ferrule, welded) for pipe couplings rated up to a nominal pressure of 28 000 kPa, ensuring correct sealing interface geometry for aerospace applications.
Q: Who typically uses it?
A: Aerospace design and manufacturing engineers, coupling and ferrule manufacturers, maintenance and inspection teams, procurement specialists, and conformity/certification assessors use this standard when designing, specifying or verifying compatible pipe coupling components.
Q: Is it current or superseded?
A: This is the first edition published in 2018 and was subject to ISO's systematic review process; it remains a current published International Standard (confirmed in the routine review cycle).
Q: Is it part of a series?
A: Yes. ISO 22431:2018 is part of an aerospace series of standards addressing 8°30′ pipe couplings and related components (other parts cover elbows/tees/crosses, thread ends, thrust wires and technical specifications for metric series couplings).
Q: What are the key keywords?
A: Aerospace; pipe coupling; 8°30′; dynamic beam seal; ferrule; welded; geometric configuration; dimensions; high-pressure fluid systems.