SIST EN 4184:2004
(Main)Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double, welded ends
Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double, welded ends
This standard specifies the characteristics of elbows 45°, welded ends, 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 - Winkelverschraubungen 45° mit Anschweißenden
Diese Norm legt die Eigenschaften von Winkelverschraubungen 45° mit Anschweißenden, für Rohrverschraubungen 8°30',
aus Titanlegierung, zur Verwendung in der Luft- und Raumfahrt fest.
Nenndruck: bis 28 000 kPa
Temperaturbereich: 55 °C bis 135 °C
Série aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Raccords coudés a 45° doubles, a souder
La présente norme spécifie les caractéristiques des raccords coudés à 45° à souder, doubles, pour les systèmes de
raccordement 8°30', en alliage de titane, pour applications aérospatiales.
Pression nominale: jusqu'à 28 000 kPa
Plage de température: 55 °C à 135 °C
Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double, welded ends
General Information
Overview
EN 4184:2001 specifies the characteristics of 45° double elbows with welded ends for the aerospace series pipe coupling 8°30' manufactured in titanium alloy. Applicable to aerospace fluid systems, the standard defines configuration, materials, surface finish and marking requirements for components used in high-pressure aircraft and space applications. The standard supports nominal pressure ratings up to 28 000 kPa and a temperature range of 55 °C to 135 °C.
Key Topics
- Configuration and dimensions: Elbow geometry, mass and dimensional classes are defined in the standard (refer to figure and table references). Where dimensions are not specified, manufacturer options are permitted provided qualification and acceptance per EN 3275, type II are met.
- Materials: Titanium alloy requirements reference related aerospace material standards (EN 3311 / EN 3312 / EN 3314 / EN 3315) for bars and forgings in the TI-P64001 family.
- Surface quality: Surface roughness and finishing are specified in relation to the illustrated configuration, unless otherwise stated in design documentation.
- Marking and identification: Marking follows EN 2424 (style A and figure references) to ensure traceability and conformity with aerospace marking practices.
- Normative references and acceptance: Dimensional configuration is aligned with EN 2656 and technical acceptance with EN 3275 (type II). The standard incorporates other normative documents for complete compliance.
Applications
EN 4184:2001 is intended for aerospace engineers, manufacturers and procurement specialists involved in high-reliability fluid systems. Typical applications include:
- High-pressure aircraft hydraulic and fuel lines where titanium alloy fittings deliver weight savings and corrosion resistance
- Aerospace systems requiring standardized 8°30' coupling interfaces and 45° directional changes
- Replacement or new-build components where conformity to European aerospace standards is required
Benefits of applying EN 4184:2001:
- Ensures interchangeability and dimensional conformity across suppliers
- Enables traceability through standardized marking and material references
- Supports high-pressure system design up to 28 000 kPa within the specified temperature band
Related Standards
Relevant standards referenced by EN 4184:2001 include:
- EN 2656 - Pipe coupling ends, welded - geometric configuration
- EN 3275 - Pipe coupling 8°30' up to 28 000 kPa - Dynamic beam seal - Technical specification (Type II)
- EN 2424 - Marking of aerospace products
- EN 3311 / EN 3312 / EN 3314 / EN 3315 - Titanium alloy TI-P64001 material specifications
Adhering to EN 4184:2001 ensures components meet established aerospace quality, dimensional control and material traceability for titanium 45° welded elbows used with 8°30' couplings.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double,
welded ends
Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double, welded
ends
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung -
Winkelverschraubungen 45° mit Anschweißenden
Série aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Raccords
coudés a 45° doubles, a souder
Ta slovenski standard je istoveten z: EN 4184:2001
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 4184
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 49.080
English version
Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows
45°, welded ends
Série aérospatiale - Système de raccordement 8°30' en Luft- und Raumfahrt - Rohrverschraubung 8°30' aus
alliage de titane - Raccords coudés à 45°, à souder Titanlegierung - Winkelverschraubungen 45° mit
Anschweißenden
This European Standard was approved by CEN on 28 February 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 4184:2001 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.
...
Frequently Asked Questions
SIST EN 4184:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Pipe coupling 8°30' in titanium alloy - Elbows 45° double, welded ends". This standard covers: This standard specifies the characteristics of elbows 45°, welded ends, 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 of elbows 45°, welded ends, 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 4184:2004 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.
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