SIST EN 3077:2022

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

• Status: Published
• Public Enquiry End Date: 31-Aug-2020
• Publication Date: 11-Apr-2022
• ICS: 49.030.99 - Other fasteners
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Apr-2022
• Due Date: 11-Jun-2022
• Completion Date: 12-Apr-2022
• Ref Project: EN 3077:2022 - Aerospace series - Clamps worm drive - Technical specification

Relations

• Refers: SIST EN 196-1:1995 - Methods of testing cement - Part 1: Determination of strength
• Effective Date: 28-Jan-2026
• Refers: SIST EN 10204:2004 - Metallic products - Types of inspection documents
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 4234:2020 - Aerospace series - Clamps, worm drive - Dimensions, masses
• Effective Date: 28-Jan-2026

Overview

SIST EN 3077:2022 - Aerospace series - Clamps worm drive - Technical specification - is a European Standard developed by CEN for aerospace applications. This standard defines the technical and quality requirements for worm drive clamps designed for use with appropriate rubber hoses, primarily to form secure joints in fluid system pipelines. SIST EN 3077:2022 covers essential characteristics such as required materials, dimensional tolerances, marking, inspection procedures, quality assurance, qualification, acceptance, and delivery conditions.

Clamps worm drive in aerospace, according to SIST EN 3077:2022, are critical mechanical fasteners enabling reliable hose connections. Adherence to this specification ensures compatibility, integrity, and safety in fluid pipeline assemblies in demanding environments.

Key Topics

• Technical Requirements and Inspections

  • Specifies characteristics such as material conformity, dimensional accuracy, and surface appearance.
  • Outlines procedures for verifying tightening range, torque performance, and reusability.
  • Mandates clear, durable marking in accordance with product standards.

• Quality Assurance and Qualification

  • Requires manufacturers to operate an approved quality management system (e.g., EN 9100).
  • Defines a comprehensive qualification process, including specific tests and inspections for initial and ongoing compliance.
  • Stipulates that no changes in material or design are allowed without approval from authorities.

• Acceptance and Delivery

  • Describes acceptance tests and batch sampling using EN 10204 and ISO 2859-1.
  • Details manufacturer responsibilities for inspections and providing acceptance test certificates upon request.

• Packaging and Labeling

  • Ensures individual or collective packaging protects clamps from damage and environmental hazards.
  • Requires clear labeling with manufacturer information, product identification, and packaging date.

Applications

SIST EN 3077:2022 applies to the following key areas:

• Aerospace Fluid Systems
  • Essential for forming leak-proof connections between pipes and rubber hoses in aircraft and spacecraft hydraulic or fuel lines.
• Maintenance and Assembly
  • Used by aerospace maintenance teams for ensuring standardized parts and processes in system repairs and overhauls.
• Manufacturing and Supply Chain
  • Guides manufacturers and suppliers of aerospace clamps in meeting stringent European and international requirements for quality and reliability.

Practical Value

• Consistent Quality - Operators and manufacturers benefit from standardized test methods and inspection regimes, reducing the risk of in-service failure.
• Regulatory Compliance - Adhering to SIST EN 3077:2022 supports compliance with broader aerospace industry quality and traceability demands.
• Enhanced Reliability - Detailed specifications for materials, design, and testing ensure that clamps perform reliably under the stresses of aerospace environments.

Related Standards

For further alignment with industry best practices, SIST EN 3077:2022 references and works in conjunction with several related standards:

• EN 10204 - Metallic products - Types of inspection documents
• ISO 2859-1 - Sampling procedures for inspection by attributes
• EN 9100 - Quality management systems for aviation, space, and defense
• EN 9133 - Qualification procedure for aerospace standard products

SIST EN 3077:2022 forms part of a vital suite of aerospace standards harmonizing technical specifications, testing methodologies, and quality assurance requirements for fastener products used in fluid systems. Adopting this standard ensures compatibility, safety, and performance in aerospace fluid transfer applications.

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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