Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end

This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications.
Nominal pressure: up to 28 000 kPa
Temperature range: - 55 °C to + 135 °C

Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Stutzen mit Dichtlippe und Anschweißende reduziertes Rohrende

Série aérospatiale - Systéme de raccordement 8°30' en alliage de titane - Olives soudées de réduction avec levre d'étanchéite

Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end

General Information

Status
Published
Publication Date
30-Apr-2004
ICS
49.080 - Aerospace fluid systems and components
Technical Committee
I08 - Imaginarni 08
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2004
Due Date
01-May-2004
Completion Date
01-May-2004
Ref Project
EN 3561:2001 - Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end

Relations

Corrected By
SIST EN 3561:2004/AC:2004 - Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end
Effective Date
01-May-2004

Overview

SIST EN 3561:2004 is a European standard developed by CEN and the European Association of Aerospace Manufacturers (AECMA). It specifies the technical characteristics and requirements for aerospace pipe couplings featuring ferrules with a dynamic beam seal end, welded and reduced at the pipe end. These ferrules are made from high-grade titanium alloy and designed specifically for aerospace fluid systems. The standard governs couplings with an angle of 8°30' and is applicable under demanding conditions including nominal pressures up to 28,000 kPa and temperatures ranging from -55 °C to +135 °C.

This standard ensures uniformity and quality in critical aerospace pipeline components, improving safety, reliability, and interchangeability of parts across the aerospace industry.

Key Topics

  • Material Specifications
    The ferrules are manufactured from titanium alloy compliant with EN 3311 and EN 3314 standards, ensuring high strength-to-weight ratio and corrosion resistance essential for aerospace environments.

  • Dimensions and Configuration
    Defines exact dimensions, mass, and geometry of ferrules and pipe ends, detailed in figure 1 and table 1 of the standard. The dynamic beam seal end has a nominal outside pipe diameter larger than the weld end to ensure a secure fit.

  • Surface Roughness Requirements
    Specifies surface finish criteria to guarantee optimal sealing performance unless otherwise detailed in design documents.

  • Pressure and Temperature Ratings
    Rated for a nominal pressure up to 28,000 kPa and operable within a temperature range of -55 °C to +135 °C, suitable for harsh aerospace applications.

  • Marking and Designation
    Marking follows EN 2424 with batch numbers or manufacturing dates, and designation formats for part identification ensure traceability and compliance within aerospace supply chains.

Applications

  • Aerospace Fluid Systems
    EN 3561 ferrules are designed for use in high-pressure aerospace fluid systems, such as fuel, hydraulic, and cooling pipelines.

  • Aircraft and Spacecraft Manufacturing
    These components are critical in assembling reliable pipeline connections capable of withstanding vibrations, pressure variations, and temperature extremes experienced during aircraft operation and space missions.

  • Maintenance and Repairs
    The standardization allows aerospace maintenance providers to replace or repair pipe joints with certified components that guarantee safety and performance consistency.

  • Aerospace Component Suppliers
    Manufacturers and suppliers of aerospace-grade pipe fittings use EN 3561 to certify their couplings meet stringent aerospace industry requirements.

Related Standards

  • EN 3272: Aerospace series - Pipe coupling 8°30' - Dynamic beam seal end for ferrules, welded – Geometric configuration
  • EN 3275: Aerospace series - Pipe coupling 8°30' up to 28,000 kPa - Dynamic beam seal – Technical specifications
  • EN 2656: Aerospace series - Pipe coupling – Coupling ends, welded – Geometric configuration
  • EN 2424: Aerospace series - Marking of aerospace products
  • EN 3311 / EN 3314: Aerospace series - Titanium alloy TI-P64001 bar materials for machining, annealed or solution treated and aged

These complementary standards ensure full compliance in design, manufacturing, marking, and material quality of aerospace pipe couplings.

Keywords: EN 3561, aerospace pipe coupling, titanium alloy ferrules, dynamic beam seal, high-pressure fittings, aerospace fluid systems, pipe coupling standard, aerospace pipe components, welded pipe ferrules, titanium alloy aerospace standards.

Frequently Asked Questions

SIST EN 3561:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end". This standard covers: This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C

This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C

SIST EN 3561:2004 is classified under the following ICS (International Classification for Standards) categories: 49.080 - Aerospace fluid systems and components. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 3561:2004 has the following relationships with other standards: It is inter standard links to SIST EN 3561:2004/AC:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 3561:2004 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic
beam seal end, welded and reduced at pipe end
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam
seal end, welded and reduced at pipe end
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Stutzen mit
Dichtlippe und Anschweißende reduziertes Rohrende
Série aérospatiale - Systéme de raccordement 8°30' en alliage de titane - Olives
soudées de réduction avec levre d'étanchéite
Ta slovenski standard je istoveten z: EN 3561:2001
ICS:
49.080 /HWDOVNLLQYHVROMVNL Aerospace fluid systems and
KLGUDYOLþQLVLVWHPLLQGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3561
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 49.080
English version
Aerospace series - Pipe coupling 8°30' in titanium alloy -
Ferrules with dynamic beam seal end, welded and reduced at
pipe end
Série aérospatiale - Système de raccordement 8°30' en Luft- und Raumfahrt - Rohrverschraubung 8°30' aus
alliage de titane - Olives soudées de réduction avec lèvre Titanlegierung - Stutzen mit Dichtlippe und Anschweißende
d'étanchéite reduziertes
This European Standard was approved by CEN on 20 January 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3561:2001 E
worldwide for CEN national Members.

Foreword
This European Standard has been prepared by the European Association of Aerospace Manufacturers
(AECMA).
After inquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at
the latest by April 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and red
...

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