SIST EN 4807:2017

Aerospace series - Flange couplings - Weld coupling, 90° elbow, in heat resisting steel - Inch series

This standard specifies the characteristics of straight welded coupling in heat resisting steel for swivel flange couplings for inch series aerospace applications.
Nominal pressure: The parts shall withstand nominal pressures given in Table 1. The nominal pressure of the assembly depends on associated seal, tube material characteristics, tube diameter and tube wall thickness (see EN 4814).
NOTE   Assembly in accordance with TR 4815.

Luft- und Raumfahrt - Rohrverschraubung mit Flanschen und Schweißstutzen, Winkelstutzen 90°, aus hochwarmfestem Stahl - Inch-Reihe

Diese Europäische Norm legt die Eigenschaften von gerade geschweißten Stutzen aus hochwarmfestem Stahl für Rohrverschraubungen mit losen Flanschen in Anwendungen der Luft- und Raumfahrt (Inch-Reihe) fest.
Nenndruck: Die Teile müssen den Nenndrücken in Tabelle 1 widerstehen. Der Nenndruck des Aufbaus hängt von der Dichtung, den Eigenschaften des Rohrmaterials, dem Rohrdurchmesser und der Dicke der Rohrwand ab (siehe EN 4814).
ANMERKUNG   Aufbau nach TR 4815.

Série aérospatiale - Raccordement à bride - Raccord à souder, coude à 90°, en acier résistant à chaud - Série en inches

Aeronavtika - Prirobnične spojke - Varjena spojka, koleno 90°, iz toplotnoodpornega jekla - Palčne mere

Ta standard določa lastnosti ravno varjenih spojk iz toplotno odpornega jekla za vrtljive prirobnične spojke za colsko izvedbo v aeronavtiki.
Nazivni tlak: deli morajo prenesti nazivne tlake, podane v preglednici 1. Nazivni tlak sestava je odvisen od povezanega tesnila, lastnosti materiala cevi, premera cevi in debeline stene cevi (glej standard EN 4814).
OPOMBA: Sestav v skladu s standardom TR 4815.

General Information

• Status: Published
• Publication Date: 14-Jun-2017
• ICS: 23.040.60 - Flanges, couplings and joints
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-May-2017
• Due Date: 31-Jul-2017
• Completion Date: 15-Jun-2017
• Ref Project: EN 4807:2017 - Aerospace series - Flange couplings - Weld coupling, 90° elbow, in heat resisting steel - Inch series

Overview

EN 4807:2017 specifies the characteristics of a straight weld coupling, 90° elbow in heat resisting steel for swivel flange couplings used in the inch series of aerospace fluid systems. Published by CEN and prepared by ASD‑STAN, this European standard defines geometry, materials, surface treatment, identification and quality requirements for flange coupling weld fittings intended for aerospace applications.

Key topics and requirements

• Scope: Covers straight welded coupling 90° elbows for swivel flange couplings (inch series) in aerospace installations.
• Dimensions & tolerances: Dimensional data, tolerances and masses are defined in Figure 1 and Table 1; dimensions are given in millimetres unless stated otherwise. Typical nominal tube diameters in the table range from 0.625 in to 2.000 in with two wall‑thickness codes (A = 0.711 mm, B = 0.889 mm). Mass values are reported as approximate kg per 1 000 parts.
• Nominal pressure: Parts shall withstand the nominal pressures listed in Table 1. The actual assembly pressure capability depends on associated seal, tube material, tube diameter and tube wall thickness (see EN 4814).
• Materials: Acceptable base materials reference EN 3363, EN 3468 or EN 3487 (specific aerospace steel grades).
• Surface treatment: Passivation in accordance with EN 2516 is required for corrosion resistance and contamination control.
• Identification & marking: Marking requirements follow EN 2424 (category A) and include identity and manufacturer blocks.
• Quality assurance: Manufacturer approval and quality management are addressed; see EN 9100 for aerospace quality system requirements.
• Related design/assembly guidance: Assembly guidance is referenced in TR 4815; full technical specification cross‑references EN 4814.

Practical applications

• Used by designers, manufacturers and maintenance organizations involved in aerospace hydraulic and fluid systems where swivel flange connections and welded flange fittings are required.
• Typical users: aerospace component manufacturers, aircraft systems engineers, maintenance/repair organizations (MRO), procurement teams specifying compatible flange coupling components.
• Practical value: ensures interchangeability, traceability and predictable pressure performance for weld‑on 90° elbow flange couplings in inch‑series tubing systems.

Related standards

• EN 4814 - Flange couplings up to 21 000 kPa - Technical specification - Inch series
• TR 4815 - Assembly/design guidance for flange couplings (inch series)
• EN 2424 - Marking of aerospace products
• EN 2516 - Passivation of corrosion resistant steels
• EN 3363, EN 3468, EN 3487 - Permitted steel materials
• EN 9100 - Quality management for aviation, space and defence

Keywords: EN 4807:2017, flange couplings, weld coupling, 90° elbow, heat resisting steel, inch series, aerospace standard, swivel flange couplings.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2017
$HURQDYWLND3ULUREQLþQHVSRMNH9DUMHQDVSRMNDNROHQRƒL]
WRSORWQRRGSRUQHJDMHNOD3DOþQHPHUH
Aerospace series - Flange couplings - Weld coupling, 90° elbow, in heat resisting steel -
Inch series
Luft- und Raumfahrt - Rohrverschraubung mit Flanschen und Schweißstutzen,
Winkelstutzen 90°, aus hochwarmfestem Stahl - Inch-Reihe
Série aérospatiale - Raccordement à bride - Raccord à souder, coude à 90°, en acier
résistant à chaud - Série en inches
Ta slovenski standard je istoveten z: EN 4807:2017
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
49.080 /HWDOVNLLQYHVROMVNL Aerospace fluid systems and
KLGUDYOLþQLVLVWHPLLQGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4807
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2017
EUROPÄISCHE NORM
ICS 49.080
English Version
Aerospace series - Flange couplings - Weld coupling, 90°
elbow, in heat resisting steel - Inch series
Série aérospatiale - Raccordement à bride - Raccord à Luft- und Raumfahrt - Rohrverschraubung mit
souder, coude à 90°, en acier résistant à chaud - Série Flanschen und Schweißstutzen, Winkelstutzen 90°, aus
en inches hochwarmfestem Stahl - Inch-Reihe
This European Standard was approved by CEN on 14 November 2016.

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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4807:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Required characteristics . 4
4 Designation . 7
5 Identification marking . 7
6 Technical specification . 7
7 Quality Assurance. 7

European foreword
This document (EN 4807:2017) has been prepared by the Aerospace and Defence Industries Association of
Europe - Standardization (ASD-STAN).
After enquiries 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 ASD,
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 November 2017, and conflicting national standards shall be
withdrawn at the latest by November 2017.
Attention is dr
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