EN 642:1994
(Main)Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirements for prestressing steel for pipes
Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirements for prestressing steel for pipes
This standard covers the requirements and the manufacture of prestressed concrete cylinder pressure pipes and fittings in sizes from DN/ID 500 to DN/ID 4000 inclusive. Larger sizes could be manufactured based on the concepts of thisstandard. These types of pipes are designed for the internal pressure, external loads and bedding conditions designated by the purchaser.
Spannbetondruckrohre, mit und ohne Blechmantel, einschließlich Rohrverbindungen, Formstücke und besondere Anforderungen an Spannstahl für Rohre
Die vorliegende Norm behandelt die Anforderungen und die Herstellung von Stahlbetondruckrohren und Formstücken mit und ohne Blechmantel in den Abmessungen von DN/ID 500 bis einschließlich DN/ID 4000. Grössere Rohrdurchmesser können auf der Grundlage dieser Norm hergestellt werden. Die Rohre werden für den vom Käufer vorgegebenen Innendruck, die äussere Belastung und die Verlegebedingungen bemessen.
Tuyaux pression en béton précontraint, avec ou sans âme en tôle, y compris joints et pièces spéciales et prescriptions particulières relatives au fil de précontrainte pour tuyaux
Cette norme couvre les prescriptions et la fabrication des tuyaux en béton précontraint avec ou sans âme en tôle, pour les diamètres compris entre DN/ID 500 et DN/ID 4000 inclus. Des diamètres plus importants peuvent être fabriqués à partir des principes de cette norme. Ces types de tuyaux sont calculés pour résister à la pression interne, aux charges externes et dans les conditions de pose précisées par l'acheteur.
Prednapete betonske tlačne cevi s kovinskim plaščem ali brez njega, skupaj s stiki, fazonskimi deli, in posebne zahteve za jeklo za prednapenjanje za cevi
General Information
- Status
- Published
- Publication Date
- 30-Oct-1994
- Withdrawal Date
- 29-Apr-1995
- Technical Committee
- CEN/TC 164 - Water supply
- Drafting Committee
- CEN/TC 164 - Water supply
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 09-Mar-2026
- Completion Date
- 18-Mar-2026
- Directive
- Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Not Harmonized89/106/EEC - Construction products
Overview
EN 642:1994 is a key CEN standard that establishes requirements for prestressed concrete pressure pipes, both with and without a metallic cylinder. The standard covers the design, manufacture, and testing of pipes and associated fittings in sizes from DN/ID 500 to DN/ID 4000. The document includes guidelines for joints, connections, special fittings, and specific requirements for prestressing steel used in the production of these concrete pressure pipes.
Prestressed concrete pressure pipes are widely used in water supply systems, sewage treatment, and other infrastructure projects due to their strength, reliability, and ability to withstand both internal pressures and external loads. The manufacturing and application guidelines detailed in EN 642:1994 help ensure product safety, performance, and interoperability across the European market and beyond.
Key Topics
- Pressure Pipe Types: The standard applies to both cylinder and non-cylinder prestressed concrete pressure pipes. Cylinder pipes feature an internal metallic cylinder, while non-cylinder types do not.
- Joint and Fitting Requirements: EN 642:1994 details specifications for various types of pipe joints and fittings, ensuring water-tightness and structural integrity of installation.
- Prestressing Steel: The document sets out specific requirements for the quality and characteristics of the steel used in the prestressing process to guarantee long-term durability and performance.
- Size Range: Covers nominal diameters/inner diameters (DN/ID) from 500 mm to 4000 mm, with the possibility of applying the same principles for larger dimensions.
- Design Considerations: Pipes are designed according to internal pressure, external loads, and bedding conditions specified by the purchaser, accommodating diverse installation environments.
- Manufacturing and Testing: Provides guidelines for manufacturing processes and necessary testing to assure compliance with performance and safety criteria.
Applications
Prestressed concrete pressure pipes manufactured according to EN 642:1994 are essential for:
- Water Transmission: Providing reliable, high-capacity conduits for drinking water and irrigation systems.
- Wastewater Infrastructure: Carrying treated or untreated sewage in municipal and industrial systems.
- Hydroelectric and Industrial Usage: Serving in facilities that require large-diameter, high-pressure piping solutions.
- Infrastructure Projects: Supporting bridges, tunnels, and other civil engineering structures where robust and long-lasting pipe systems are required.
Using pipes that conform to this standard helps ensure:
- Enhanced durability and reduced maintenance through precise requirements for prestressing steel and structural design.
- Compatibility and interchangeability of fittings and joints across manufacturers and installers.
- Reliable performance under a range of pressure and environmental conditions.
Related Standards
For comprehensive compliance and interoperability, consider these related standards:
- EN 1916 - Concrete pipes and fittings, unreinforced, steel fibre and reinforced
- EN 13380 - Concrete manholes and inspection chambers
- ISO 4422 - Pipes and fittings made of plastics for water supply
- EN 206 - Concrete - Specification, performance, production and conformity
Implementing EN 642:1994 alongside these standards contributes to best practices in the design, construction, and operation of modern water and wastewater infrastructure using prestressed concrete pressure pipes. This supports long-term reliability, safety, and value for both public and private sector projects.
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Frequently Asked Questions
EN 642:1994 is a standard published by the European Committee for Standardization (CEN). Its full title is "Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirements for prestressing steel for pipes". This standard covers: This standard covers the requirements and the manufacture of prestressed concrete cylinder pressure pipes and fittings in sizes from DN/ID 500 to DN/ID 4000 inclusive. Larger sizes could be manufactured based on the concepts of thisstandard. These types of pipes are designed for the internal pressure, external loads and bedding conditions designated by the purchaser.
This standard covers the requirements and the manufacture of prestressed concrete cylinder pressure pipes and fittings in sizes from DN/ID 500 to DN/ID 4000 inclusive. Larger sizes could be manufactured based on the concepts of thisstandard. These types of pipes are designed for the internal pressure, external loads and bedding conditions designated by the purchaser.
EN 642:1994 is classified under the following ICS (International Classification for Standards) categories: 23.040.50 - Pipes and fittings of other materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 642:1994 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/EXP. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 642:1994 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)
SLOVENSKI STANDARD
01-marec-1996
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Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings
and specific requirements for prestressing steel for pipes
Spannbetondruckrohre, mit und ohne Blechmantel, einschließlich Rohrverbindungen,
Formstücke und besondere Anforderungen an Spannstahl für Rohre
Tuyaux pression en béton précontraint, avec ou sans âme en tôle, y compris joints et
pieces spéciales et prescriptions particulieres relatives au fil de précontrainte pour
tuyaux
Ta slovenski standard je istoveten z: EN 642:1994
ICS:
23.040.50 Cevi in fitingi iz drugih Pipes and fittings of other
materialov materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
SI
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