SIST EN 4051:2004
(Main)Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connection
Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connection
This standard specifies the characteristics of port connection for pipe couplings, 60°, spherical, in titanium alloy, for aerospace applications.
It is applicable to 60°Ispherical tube coupling in titanium alloy defined by the EN 3853 standard, to be mounted with O-ring defined in accordance with the TR 4052.
Luft- und Raumfahrt - Rohrverschraubungen mit Kugelbuchsen, 60°, aus Titanlegierung - Einschraublöcher
Diese Norm legt die Eigenschaften von Einschraublöchern für Rohrverschraubungen 60° mit Kugelbuchse, aus Titanlegierung, für Anwendungen in der Luft- und Raumfahrt fest.
Sie ist in Verbindung mit der Rohrverschraubung 60° mit Kugelbuchse aus Titanlegierung nach EN 3853 anzuwenden, die mit dem in TR 4052 festgelegten O-Ring zu montieren ist.
Série aérospatiale - Raccords, sphériques, 60°, en alliage de titane - Logement d'implantation
Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connection
General Information
- Status
- Published
- Publication Date
- 30-Apr-2004
- 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
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN 4051:2004 is a European standard developed for the aerospace sector, specifying requirements for port connections of 60° spherical pipe couplings made from titanium alloy. These specialized couplings are widely used in aerospace fluid systems where reliable and high-performance connections are essential. The standard ensures that these components meet stringent quality and compatibility criteria, thus enhancing safety and functionality in aircraft operations.
This standard applies specifically to 60° spherical tube couplings as defined by EN 3853, designed to be used with O-rings compliant with TR 4052. It forms a critical part of the larger framework for aerospace fluid systems, supporting high integrity and leak-free connections under demanding conditions.
Key Topics
- Material specification: Focuses on titanium alloy, known for its high strength-to-weight ratio and corrosion resistance, crucial for aerospace environments.
- Geometry and dimensions: Defines the port connection characteristics, including thread types and dimensional tolerances, ensuring interchangeability and compatibility.
- Spherical interface: Outlines the 60° spherical coupling design, which offers enhanced sealing and reduced risk of misalignment.
- O-ring compatibility: Specifies the need for mounting with an O-ring, providing guidelines for choosing suitable seals as per TR 4052.
- Drawing and designation: Offers standardized methods for documenting and identifying port connections on technical drawings, facilitating clear communication across the aerospace supply chain.
Applications
The guidance provided by SIST EN 4051:2004 is essential for:
- Aerospace hydraulic and pneumatic systems: Ensuring that pipes and tubes are securely connected, minimizing risks of leaks or disconnections in aircraft.
- Maintenance and retrofitting: Enabling engineers to select or replace pipe couplings with confidence in their compatibility and performance.
- Component manufacturing: Supporting manufacturers in producing fittings that conform to European and international aerospace requirements.
- Engineering design: Assisting aerospace designers in specifying appropriate connections for fluid systems, contributing to overall aircraft reliability and safety.
By adhering to this standard, aerospace organizations achieve consistency in component design and facilitate international cooperation in manufacturing and maintenance.
Related Standards
SIST EN 4051:2004 is closely connected with the following standards relevant to aerospace pipe coupling systems:
- EN 3853: Defines straight pipe couplings, 60°, spherical, in titanium alloy, which guide the base characteristics referenced by SIST EN 4051.
- TR 4052: Provides technical recommendations for O-ring assembly for 60° spherical couplings, critical for ensuring proper sealing.
- ISO 5855-3: Specifies limit dimensions for MJ threads used in fittings for fluid systems, which are referenced for thread geometry in this standard.
These standards together create a robust foundation for the design, selection, and application of titanium pipe couplings in aerospace fluid systems, supporting safety and international standardization.
By complying with SIST EN 4051:2004, aerospace manufacturers, designers, and maintenance providers ensure their fluid system components are reliable, standardized, and compatible with global aerospace practices, contributing to safer and more efficient aircraft operations.
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Frequently Asked Questions
SIST EN 4051:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connection". This standard covers: This standard specifies the characteristics of port connection for pipe couplings, 60°, spherical, in titanium alloy, for aerospace applications. It is applicable to 60°Ispherical tube coupling in titanium alloy defined by the EN 3853 standard, to be mounted with O-ring defined in accordance with the TR 4052.
This standard specifies the characteristics of port connection for pipe couplings, 60°, spherical, in titanium alloy, for aerospace applications. It is applicable to 60°Ispherical tube coupling in titanium alloy defined by the EN 3853 standard, to be mounted with O-ring defined in accordance with the TR 4052.
SIST EN 4051:2004 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 4051:2004 has the following relationships with other standards: It is inter standard links to SIST EN 3853:2004, oSIST prEN 415-2:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 4051:2004 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connectionLuft- und Raumfahrt - Rohrverschraubungen mit Kugelbuchsen, 60°, aus Titanlegierung - EinschraublöcherSérie aérospatiale - Raccords, sphériques, 60°, en alliage de titane - Logement d'implantationAerospace series - Pipe couplings, 60°, spherical, in titanium alloy - Port connection49.080Aerospace fluid systems and componentsICS:Ta slovenski standard je istoveten z:EN 4051:2002SIST EN 4051:2004en01-maj-2004SIST EN 4051:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4051November 2002ICS 49.080English versionAerospace series - Pipe couplings, 60°, spherical, in titaniumalloy - Port connectionSérie aérospatiale - Raccords sphériques, 60°, en alliagede titane - Logement d'implantationThis European Standard was approved by CEN on 19 August 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4051:2002 ESIST EN 4051:2004
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