EN 3630:2008
(Main)Aerospace series - Fluid fittings, flanged, straight - Sealing by O-ring for 0,8 mm thick tubes
Aerospace series - Fluid fittings, flanged, straight - Sealing by O-ring for 0,8 mm thick tubes
The purpose of this standard is to define the characteristics of the fluid fittings, flanged, straight, sealing by O ring, for 0,8 mm thick tubes.
NOTE Flanged fitting installation hole and assembly, see EN 3633 and TR 3634.
Luft- und Raumfahrt - Rohrverbindungen mit Flansch, gerade - O-Ring-Dichtung für Rohre mit einer Dicke von 0,8 mm
Der Zweck dieser Norm ist die Festlegung der Eigenschaften von geraden Rohrverbindungen mit Flansch und O Ring Dichtung für Rohre mit einer Dicke von 0,8 mm.
ANMERKUNG Einbaulöcher und Einbaurichtlinien für Rohrverbindungen mit Flansch siehe EN 3633 und TR 3634.
Série aérospatiale - Raccords à bride, droits - Etanchéité par joint torique pour tubes de 0,8 mm d'épaisseur
Aeronavtika - Cevna napeljava, s prirobnicami, ravna - Tesnilke O za cevi z debelino 0,8 mm
General Information
- Status
- Published
- Publication Date
- 08-Apr-2008
- Withdrawal Date
- 30-Oct-2008
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2024
- Completion Date
- 11-Feb-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3630:2008 is a CEN aerospace standard that defines the characteristics of flanged, straight fluid fittings sealed by an O‑ring specifically for tubes with a wall thickness of 0.8 mm. The standard sets out the required configuration, dimensions, tolerances and material requirements for these fittings to ensure interchangeability, reliable sealing and compliance across aerospace fluid systems.
Key topics and requirements
- Scope and purpose: Specifies characteristics for flanged, straight fittings with O‑ring sealing for 0.8 mm thick tubes used in aerospace fluid systems.
- Configuration & dimensions: Detailed geometrical configuration, dimensional tables and tolerances are given (referenced in Figures 1–3 and Tables 1–3 of the standard).
- Material: Specifies use of FE‑PA13 steel in the softened condition according to EN 2462.
- Sealing method: O‑ring sealing details for flange interfaces to ensure fluid tightness.
- Designation & marking: Defines a standard designation format (example: EN 3630 - 140 - 2) and mandates marking per EN 2424 (Style A) as shown in the normative figures.
- Related assembly guidance: Installation hole and assembly practices are covered by EN 3633 and TR 3634 - users must consult these for correct installation and weld‑lip geometry (EN 3635).
- Compliance: The document is a European Standard approved by CEN and intended for adoption as a national standard by member bodies.
Practical applications
- Use EN 3630 when designing, procuring or manufacturing aerospace fluid fittings for hydraulic, pneumatic or fuel sub‑systems where small‑wall‑thickness tubing (0.8 mm) is employed.
- Ensures compatibility and interchangeability of flanged straight fittings across suppliers and airframe platforms.
- Guides quality assurance and inspection teams on marking, dimensional acceptance and material verification.
- Supports maintenance and repair organizations in identifying correct replacement fittings and ensuring correct O‑ring sealing interfaces.
Who should use this standard
- Aerospace design and systems engineers specifying fluid line components.
- Manufacturers and subcontractors producing flanged O‑ring fittings.
- Procurement specialists sourcing standardized fittings.
- Quality, test and maintenance teams ensuring regulatory and interchangeability compliance.
Related standards
- EN 3633 - Installation hole for fluid fittings, flanged (installation geometry)
- TR 3634 - Assembly recommendations for flanged fluid fittings
- EN 3635 - Weld lip geometrical configuration
- EN 2462 - Material specification (FE‑PA13)
- EN 2424 - Marking of aerospace products
Keywords: EN 3630:2008, aerospace fluid fittings, flanged straight fittings, O‑ring sealing, 0.8 mm tube, FE‑PA13, CEN, EN 3633, TR 3634.
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Frequently Asked Questions
EN 3630:2008 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Fluid fittings, flanged, straight - Sealing by O-ring for 0,8 mm thick tubes". This standard covers: The purpose of this standard is to define the characteristics of the fluid fittings, flanged, straight, sealing by O ring, for 0,8 mm thick tubes. NOTE Flanged fitting installation hole and assembly, see EN 3633 and TR 3634.
The purpose of this standard is to define the characteristics of the fluid fittings, flanged, straight, sealing by O ring, for 0,8 mm thick tubes. NOTE Flanged fitting installation hole and assembly, see EN 3633 and TR 3634.
EN 3630:2008 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.
EN 3630:2008 has the following relationships with other standards: It is inter standard links to EN 2424:2008, EN 3635:2014, EN 3633:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3630:2008 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 - Fluid fittings, flanged, straight - Sealing by O-ring for 0,8 mm thick tubesAeronavtika - Cevna napeljava, s prirobnicami, ravna - Tesnilke O za cevi z debelino 0,8 mmSérie aérospatiale - Raccords à bride, droits - Etanchéité par joint torique pour tubes de 0,8 mm d'épaisseurLuft- und Raumfahrt - Rohrverbindungen mit Flansch, gerade - O-Ring-Dichtung für Rohre mit einer Dicke von 0,8 mm49.080Aerospace fluid systems and componentsICS:SIST EN 3630:2008enTa slovenski standard je istoveten z:EN 3630:200801-julij-2008SIST EN 3630:2008SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3630April 2008ICS 49.080 English VersionAerospace series - Fluid fittings, flanged, straight - Sealing by O-ring for 0,8 mm thick tubesSérie aérospatiale - Raccords à bride, droits - Etanchéitépar joint torique pour tubes de 0,8 mm d'épaisseurLuft- und Raumfahrt - Rohrverbindungen mit Flansch,gerade - O-Ring-Dichtung für Rohre mit einer Dicke von 0,8mmThis European Standard was approved by CEN on 21 December 2007.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 CEN 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3630:2008: E
Figures Figure 1.5 Figure 2.6 Figure 3.7
Tables Table 1.5 Table 2.7 Table 3.
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