EN 3077:2022
(Main)Aerospace series - Clamps worm drive - Technical specification
Aerospace series - Clamps worm drive - Technical specification
This document specifies the required characteristics, inspections, test methods, quality assurance, qualification, acceptance and delivery conditions of clamps worm drive designed for use with suitable rubber hoses to form joints in fluid system pipelines.
The clamps worm drive are intended to be used as specified in the product standards.
Luft- und Raumfahrt - Schellen mit Schneckentrieb - Technische Lieferbedingungen
Dieses Dokument legt die erforderlichen Eigenschaften, Inspektionen, Prüfverfahren, Qualitätssicherung, Qualifikation, Abnahme- und Lieferbedingungen von Schellen mit Schneckentrieb fest, die dafür ausgelegt sind, zusammen mit geeigneten Gummi-Schläuchen Verbindungen in fluidischen Rohrsystemen herzustellen.
Die Schellen mit Schneckentrieb sind für den in den Produktnormen angegebenen Gebrauch bestimmt.
Série aérospatiale - Colliers à vis tangente - Spécification technique
Le présent document spécifie les caractéristiques requises, les contrôles, les méthodes d’essai, l’assurance qualité, la qualification, la réception et les conditions de livraison des colliers à vis tangente conçus pour utilisation avec des tuyauteries en caoutchouc appropriées pour les raccordements de canalisations de systèmes de fluides.
Les colliers à vis tangente sont destinés à être utilisés comme spécifié dans les normes de produits.
Aeronavtika - Cevne objemke - Tehnična specifikacija
Ta dokument določa zahtevane značilnosti, preglede, preskusne metode, pogoje zagotavljanja kakovosti, kvalifikacije in sprejemljivosti, ter dobavne pogoje za cevne objemke, ki so zasnovane za uporabo z ustreznimi gumijastimi cevmi za oblikovanje spojev pri ocevju s tekočino. Cevne objemke so predvidene za uporabo v skladu z določili v standardih za izdelke.
General Information
Overview
EN 3077:2022 is a European aerospace series standard defining the technical specifications for worm drive clamps used in fluid system pipelines. Published by CEN and developed by the Aerospace and Defence Industries Association of Europe (ASD-STAN), this standard outlines essential requirements including materials, dimensions, testing, quality assurance, acceptance, and delivery conditions. The worm drive clamps covered are specifically designed for use with suitable rubber hoses to reliably form joints in aerospace fluid systems, ensuring safety, performance, and durability under operational conditions.
Key Topics
Scope and Application
EN 3077:2022 applies to worm drive clamps manufactured for aerospace fluid system pipelines. These clamps are intended for hose connections to maintain secure, leak-proof joints in critical aerospace environments. The standard complements product-specific standards detailing exact use cases.Material and Dimensional Requirements
Clamps must meet strict material specifications and dimensional tolerances referenced from related aerospace product standards. The material quality is verified through acceptance test certificates to guarantee conformity and durability. Dimensions are verified using precise measurement instruments.Inspection and Test Methods
The document specifies comprehensive inspection and test procedures covering:- Material conformity and certification
- Dimensional accuracy and tolerances
- Visual inspections for surface imperfections, burrs, or defects
- Functional tests including tightening range, tightening torque, ultimate torque capacity, and reusability after multiple assembly cycles
Quality Assurance and Manufacturer Approval
Manufacturers of clamps must be approved aerospace production organizations maintaining quality systems such as EN 9100 or equivalent aerospace standards. Product qualification must follow aerospace procedures like EN 9133, with strict prohibitions on material or design changes without prior qualification authority approval.Acceptance and Packaging
Batch acceptance involves sampling and testing in accordance with ISO 2859-1 procedures, with defined acceptance quality levels for various dimensional and functional attributes. Packaging must ensure protection against damage, humidity, corrosion, and contamination during transit, specifying manufacturer and product details on individual and collective packaging.Documentation and Traceability
Where required, manufacturers provide acceptance test certificates per EN 10204 to certify compliance with the standard and agreed testing scope. Traceability and documentation accompany deliveries for audit and quality control purposes.
Applications
EN 3077 worm drive clamps are critical components in aerospace fluid system pipelines, widely used for:
- Securing flexible rubber hoses in fuel, hydraulic, and pneumatic systems
- Ensuring leak-proof, durable hose joints in aircraft, spacecraft, and defense vehicles
- Withstanding aerospace-specific operational stresses including vibration, pressure variation, and temperature extremes
- Facilitating maintenance through reusability and reliable tightening mechanisms
- Supporting aerospace manufacturing quality and certification requirements for safety-critical components
These clamps are integral to maintaining functional integrity and safety of fluid conveyance systems in highly regulated aviation and space industries.
Related Standards
- EN 9100 – Quality management systems – Requirements for aviation, space, and defense organizations
- EN 9133 – Aerospace series – Qualification procedure for aerospace standard products
- EN 10204 – Metallic products – Types of inspection documents
- ISO 2859-1 – Sampling procedures for inspection by attributes, providing statistical methods for acceptance sampling
- Product-specific standards governing hose clamps and fluid system components referenced for detailed design and performance criteria
Adherence to EN 3077:2022 alongside these standards ensures a holistic approach to quality, safety, and reliability in aerospace clamp manufacturing and application.
Keywords: EN 3077:2022, aerospace worm drive clamps, fluid system pipelines, hose clamps, aerospace standards, clamp tightening torque, quality assurance aerospace, aerospace clamp testing, EN 9100, EN 9133, aerospace manufacturing standards, worm drive clamp specifications, aerospace hose joints.
Frequently Asked Questions
EN 3077:2022 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Clamps worm drive - Technical specification". This standard covers: This document specifies the required characteristics, inspections, test methods, quality assurance, qualification, acceptance and delivery conditions of clamps worm drive designed for use with suitable rubber hoses to form joints in fluid system pipelines. The clamps worm drive are intended to be used as specified in the product standards.
This document specifies the required characteristics, inspections, test methods, quality assurance, qualification, acceptance and delivery conditions of clamps worm drive designed for use with suitable rubber hoses to form joints in fluid system pipelines. The clamps worm drive are intended to be used as specified in the product standards.
EN 3077:2022 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.
You can purchase EN 3077:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2022
Aeronavtika - Cevne objemke - Tehnična specifikacija
Aerospace series - Clamps worm drive - Technical specification
Luft- und Raumfahrt - Schellen mit Schneckentrieb - Technische Lieferbedingungen
Série aérospatiale - Colliers à vis tangente - Spécification technique
Ta slovenski standard je istoveten z: EN 3077:2022
ICS:
49.030.99 Drugi vezni elementi Other fasteners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 3077
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 49.080
English Version
Aerospace series - Clamps worm drive - Technical
specification
Série aérospatiale - Colliers à vis tangente - Luft- und Raumfahrt - Schellen mit Schneckentrieb -
Spécification technique Technische Lieferbedingungen
This European Standard was approved by CEN on 17 January 2022.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3077:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements, inspection and test methods . 4
5 Quality assurance . 6
5.1 Approval of manufacturer . 6
5.2 Product qualification . 6
6 Acceptance conditions . 6
6.1 Manufacturer’s responsibility . 6
6.2 Inspections and tests . 6
7 Packaging . 7
8 Acceptance test certificate . 8
Annex A (informative) Evolution sheet . 9
Bibliography . 10
European foreword
This document (EN 3077:2022) 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 document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, 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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
1 Scope
This document specifies the required characteristics, inspections, test methods, quality assurance,
qualification, acceptance and delivery conditions of clamps worm drive designed for use with suitable
rubber hoses to form joints in fluid system pipelines.
The clamps worm drive are intended to be used as specified in the product standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10204, Metallic products — Types of inspection documents
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: availabl
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