SIST EN 4030:2002

Aerospace series - Pipe coupling 8°30' in titanium alloy - Tees bulkhead on run

This standard specifies the characteristics of tees, bulkhead on run, 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 - T-Verschraubungen T-Durchgang als Schottanschluss

Diese Norm legt die Eigenschaften von T-Verschraubungen, T-Durchgang als Schottanschluss, 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 en té pour traversée de cloison en ligne

La présente norme spécifie les caractéristiques des raccords en té pour traversée de cloison en ligne, 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 - Tees bulkhead on run

General Information

• Status: Published
• Publication Date: 31-Dec-2001
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2002
• Due Date: 01-Jan-2002
• Completion Date: 01-Jan-2002
• Ref Project: EN 4030:2001 - Aerospace series - Pipe coupling 8°30' in titanium alloy - Tees bulkhead on run

Overview

EN 4030:2001 specifies the characteristics and requirements for tees, bulkhead on run, for pipe coupling 8°30' made in titanium alloy for aerospace applications. The standard covers dimensional, material, surface treatment and marking requirements for fittings intended for high‑pressure aerospace fluid systems. It applies to nominal pressures up to 28 000 kPa and a temperature range stated in the standard as 55 °C to 135 °C.

Key topics and technical requirements

• Configuration & dimensions: Detailed geometry, mass and dimensional data are given (codes covering MJ thread sizes MJ10 → MJ39) and apply before lubrication; unspecified dimensions may be chosen by the manufacturer provided EN 3275 type II qualification/acceptance is met.
• Threads & fit: Threads and limit dimensions referenced to ISO 5855-3 (MJ threads) and EN 3274 for geometric configuration and thread-end forms.
• Materials: Titanium alloy grades referenced to EN 3311 / EN 3312 / EN 3314 / EN 3315 for bars and forgings.
• Surface treatment & lubrication: Threads and sealing faces must be lubricated per EN 2491; lubricant film thickness 0.005 mm to 0.013 mm; prior abrasive blasting using non‑metallic grit is required.
• Internal finishing: Radius R = 0.3 mm to 1.0 mm, surface roughness 0.8 µm; hand deburring is prohibited.
• Marking & identification: Marking to EN 2424, style A, including area allocation shown in the standard.
• Installation details: Bulkhead installation uses washers per EN 3267; installation figures and grip/thread dimensions provided.

Applications and users

EN 4030 is intended for:

• Aerospace OEMs and suppliers manufacturing or procuring titanium pipe couplings and bulkhead tees for hydraulic, fuel or pneumatic systems.
• Design engineers specifying fittings for high‑pressure aerospace fluid systems (up to 28 000 kPa).
• Quality, inspection and procurement teams ensuring components meet geometric, material and surface‑treatment criteria.
• Maintenance and modification organizations performing installations or replacements where compatibility with MJ thread series and bulkhead sealing is required.

Practical benefits include standardized interchangeability, predictable sealing and mechanical behaviour in aerospace installations, and traceable material and surface treatment controls.

Related standards

Key normative references cited in EN 4030:

• ISO 5855-3 (MJ threads)
• EN 3274 / EN 3275 (pipe coupling geometry and technical specification)
• EN 2424 (marking)
• EN 2491 (molybdenum disulphide dry lubricants)
• EN 3267 (bulkhead washers)
• EN 3311 / EN 3312 / EN 3314 / EN 3315 (titanium alloy material specifications)

Keywords: EN 4030, pipe coupling 8°30', tees bulkhead on run, titanium alloy, aerospace fittings, MJ threads, nominal pressure 28000 kPa, surface treatment, EN 3275.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2002
Aerospace series - Pipe coupling 8-30' in titanium alloy - Tees bulkhead on run
Aerospace series - Pipe coupling 8°30' in titanium alloy - Tees bulkhead on run
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - T-Verschraubungen

T-Durchgang als Schottanschluss
Série aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Raccords en
té
pour traversée de cloison en ligne
Ta slovenski standard je istoveten z: EN 4030:2001
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 4030
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2001
ICS 49.080
English version
Aerospace series - Pipe coupling 8°30' in titanium alloy - Tees
bulkhead on run
Série aérospatiale - Système de raccordement 8°30' en Luft- und Raumfahrt - Rohrverschraubung 8°30' aus
alliage de titane - Raccords en té pour traversée de cloison Titanlegierung - T-Verschraubungen T-Durchgang als
en ligne Schottanschluß
This European Standard was approved by CEN on 29 December 2000.
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 4030:2001 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 March 2002, and conflicting national standards shall be withdrawn at the latest by March
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.
1 Scope
This standard specifies the characteristics of tees, bulkhead on run, 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
2 Normative references
This European Standard incorporates
...