EN 3269:2001

Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules, blind, with dynamic beam seal end

This standard specifies the characteristics of blind ferrules with dynamic beam seal end for pipe couplings 8°30', in titanium alloy, for aerospace applications.

Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Blindstutzen mit Dichtlippe

Diese Norm legt die Eigenschaften von Blindstutzen mit Dichtlippe für Rohrverschraubungen 8°30', aus Titanle-gierung, zur Verwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Système de raccordement 8°30' en alliage de titane - Obturateurs avec joint à lèvre

La présente norme spécifie les caractéristiques requises des obturateurs avec joint à lèvre, pour les systèmes de raccorde-ment 8°30', en alliage de titane, pour applications aérospatiales.

Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules, blind, with dynamic beam seal end

General Information

• Status: Published
• Publication Date: 23-Oct-2001
• Withdrawal Date: 29-Apr-2002
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 3 - Mechanical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 31-May-2017
• Completion Date: 11-Feb-2026
• Ref Project: SIST EN 3269:2004 - Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules, blind, with dynamic beam seal end

Relations

• Refers: EN 3275:2019 - Aerospace series - Pipe coupling 8°30' up to 28 000 kPa Dynamic beam seal - Metric series - Technical specification
• Effective Date: 28-Jan-2026
• Refers: EN 3311:2023 - Aerospace series - Titanium alloy TI-P64001 (Ti-6Al-4V) - Annealed - Bars for machining - D ≤ 300 mm - 900 MPa ≤ Rm ≤ 1 160 MPa
• Effective Date: 28-Jan-2026
• Refers: EN 2424:2008 - Aerospace series - Marking of aerospace products
• Effective Date: 28-Jan-2026
• Refers: EN 3272:2001 - Aerospace series - Pipe coupling 8°30' - Dynamic beam seal end for ferrule, welded - Geometric configuration
• Effective Date: 28-Jan-2026
• Refers: EN 3426:2006 - Aerospace series - Groove dimensions for axial mounting external type retaining rings
• Effective Date: 28-Jan-2026
• Referred By: EN 4686:2014 - Aerospace series - Pipe coupling 8°30' in titanium alloy - Equipped blind ferrules
• Effective Date: 28-Jan-2026

Overview

EN 3269:2001 - Aerospace series – Pipe coupling 8°30' in titanium alloy – Ferrules, blind, with dynamic beam seal end is a European Standard developed by CEN. It specifies the characteristics and requirements for blind ferrules with a dynamic beam seal end, intended for use in 8°30' pipe couplings made from titanium alloy in aerospace applications. This standard provides essential guidelines for manufacturers, suppliers, and engineers involved in the design, production, and qualification of aerospace fluid system components, ensuring high levels of quality, consistency, and safety.

Key Topics

• Component Definition: The standard defines blind ferrules designed for pipe couplings with an 8°30' angle, manufactured from titanium alloys for optimal strength-to-weight performance.
• Dynamic Beam Seal End: Focuses on ferrules featuring a dynamic beam seal end, enhancing reliability and sealing performance in demanding aerospace environments.
• Material Specifications: Titanium alloys in compliance with relevant aerospace material standards are required, ensuring durability and resistance to corrosion.
• Dimensions and Configuration: Specifies dimensional requirements, mass, and geometric configuration to guarantee interchangeability and compatibility within standardized aerospace fluid systems.
• Surface Quality: Establishes surface roughness parameters, supporting the integrity and longevity of the component in fluid systems.
• Marking and Identification: Prescribes marking methods consistent with EN 2424 to enable traceability and compliance across the supply chain.

Applications

The requirements established in EN 3269:2001 are critical for multiple aerospace fluid systems applications, including:

• Airframe Hydraulic Systems: Ensures secure and leak-proof connections in high-pressure circuits using titanium ferrules for weight savings and corrosion resistance.
• Fuel and Pneumatic Systems: Utilization of dynamic beam seal ends assures reliable seals, even under vibration, temperature variation, and pressure fluctuations typical in aerospace environments.
• Maintenance and Retrofit: Provides standardization for replacement parts, simplifying sourcing and reducing maintenance costs by facilitating cross-manufacturer compatibility.
• New Aircraft Designs: Enables engineers to specify components with proven performance criteria during the design phase, supporting both safety and innovation.

Related Standards

For comprehensive compliance and correct implementation, EN 3269:2001 should be considered alongside the following related European standards:

• EN 2424: Aerospace series – Marking of aerospace products – Requirements for component marking and traceability.
• EN 3272: Aerospace series – Specifications for dynamic beam seal end for ferrule, welded – Geometric configuration.
• EN 3275: Aerospace series – Technical specification for pipe couplings with dynamic beam seals, covering pressure and performance expectations.
• EN 3311 / EN 3314: Specifications for titanium alloy bars for machining, ensuring the material quality used in ferrules meets stringent aerospace requirements.
• EN 3426: Defines groove dimensions for axial mounting of external retaining rings relevant to ferrule installation.

Practical Value

The adoption of EN 3269:2001 supports:

• Standardized Manufacturing: Enables harmonization across the aerospace supply chain, reducing variability and improving part interchangeability.
• Safety and Reliability: Adhering to rigorous quality and testing requirements minimizes the risk of failure in critical fluid systems.
• Global Market Access: Compliance with CEN standards facilitates acceptance and use of products across European and international aerospace markets.
• Lifecycle Management: Ensures that parts can be reliably sourced and replaced over the lifespan of aircraft, lowering long-term operational costs.

By following the specifications of EN 3269:2001, aerospace industry stakeholders can guarantee the performance and integrity of their pipe coupling assemblies, ensuring safe and efficient operation in challenging environments and meeting the highest standards of quality in aerospace engineering.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules, blind, with dynamic beam seal endLuft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Blindstutzen mit DichtlippeSérie aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Obturateurs avec joint a levreAerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules, blind, with dynamic beam seal end49.080Aerospace fluid systems and componentsICS:Ta slovenski standard je istoveten z:EN 3269:2001SIST EN 3269:2004en01-maj-2004SIST EN 3269:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3269October 2001ICS 49.080English versionAerospace series - Pipe coupling 8°30' in titanium alloy -Ferrules, blind, with dynamic beam seal endSérie aérospatiale - Système de raccordement 8°30' enalliage de titane - Obturateurs avec joint à lèvreLuft- und Raumfahrt - Rohrverschraubung 8°30' ausTitanlegierung - Blindstutzen mit DichtlippeThis European Standard was approved by CEN on 6 January 2001.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, 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© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3269:2001 ESIST EN 3269:2004
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