EN 641:1994

Reinforced concrete pressure pipes, cylinder type, including joints and fittings

This European Standard specifies the requirements and manufacture of reinforced concrete pressure pipe cylinder type, that is not prestressed, in sizes from DN/ID 250 to DN/ID 4000 inclusive. Pretensioned concrete cylinder pipe, in whichthe reinforcement is wrapped, under low tension, directly on to the steel cylinder is covered by this standard and is not normally manufactured in sizes above DN/ID 1400. Larger sizes can be manufactured based on the concepts of thisstandard.

Stahlbetondruckrohre mit Blechmantel einschließlich Rohrverbindungen und Formstücke

Die Norm enthält Anforderungen an nicht vorgespannte Stahlbetondruckrohre mit Blechmantel und deren Herstellung für den Durchmesserbereich DN/ID 250 bis DN/ID 4000. Blechmantelrohre, bei denen die Bewehrung unter Spannung auf den Blechmantel gewickelt ist, werden normalerweise nicht über DN/ID 1400 hergestellt.

Tuyaux pression en béton armé à âme en tôle, joints et pièces spéciales compris

Cette norme européenne spécifie les prescriptions et la fabrication des tuyaux pression en béton armé avec âme en tôle, non précontraints, dont les diamètres sont compris entre DN/ID 250 et DN/ID 4000 inclusivement. Les tuyaux àâme en tôle avec armatures plaquées directement sous tension sur la tôle sontcouverts par cette norme et ne sont normalement pas fabriqués dans des diamètressupérieurs à DN/ID 1400. Des tuyaux de diamètres plus importants peuvent être fabriqués à partir des données de cette norme.

Armiranobetonske tlačne cevi s kovinskim plaščem, skupaj s spoji in fazonskimi kosi

General Information

• Status: Published
• Publication Date: 30-Oct-1994
• Withdrawal Date: 29-Apr-1995
• ICS: 23.040.50 - Pipes and fittings of other materials
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164 - Water supply
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2024
• Completion Date: 02-Dec-2024
• Directive: 305/2011 - 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
• Directive: 89/106/EEC - Construction products
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/BC/CEN/88/15 - Standardization request to CEN/CENELEC in the field of Water supply, drainage and sewerage
• Ref Project: SIST EN 641:1996 - Reinforced concrete pressure pipes, cylinder type, including joints and fittings

Overview

EN 641:1994 is a CEN European Standard that specifies the requirements and manufacture of reinforced concrete pressure pipes, cylinder type, including joints and fittings. The standard applies to non‑prestressed reinforced concrete cylinder pipes in sizes from DN/ID 250 to DN/ID 4000 inclusive. It also covers pretensioned concrete cylinder pipe where the reinforcement is wrapped under low tension directly onto the steel cylinder (commonly manufactured up to DN/ID 1400), and indicates that larger sizes can be produced based on the same concepts. EN 641 is often adopted nationally (for example SIST EN 641:1996).

Key topics and technical requirements

• Scope and pipe types: Defines cylinder‑type reinforced concrete pressure pipes (not prestressed), plus wrapped pretensioned variants.
• Size range: Applies to DN/ID 250–4000; wrapped pretensioned types typically up to DN/ID 1400.
• Manufacture and materials: Sets out general requirements for manufacture and material composition for reinforced concrete cylinder pipe (note: the standard itself contains detailed material and manufacturing provisions).
• Joints and fittings: Specifies acceptance and inclusion of pipe joints and fittings appropriate for pressure service.
• Design concepts: Provides the conceptual basis for strength, jointing and pressure performance for both non‑prestressed and wrapped pretensioned cylinder pipes.
• National adoptions: The standard is implemented by national standards organizations (e.g., SIST for Slovenia).

Applications and who uses it

EN 641 is practical for professionals involved with pressure pipeline systems where reinforced concrete cylinder pipes are appropriate:

• Civil and structural engineers specifying pressure pipes for water mains, wastewater and industrial pressure systems
• Manufacturers producing reinforced concrete cylinder pipes and associated joints and fittings
• Contractors and installers responsible for procurement, installation and testing of pipeline systems
• Asset owners, utilities and specifiers ensuring compliance with European manufacturing and performance requirements
• Standards committees and conformity assessment bodies reviewing national adoptions (e.g., SIST EN 641)

Related standards

• EN 641 is part of the family of European standards for concrete pipes and pressure systems. Users should consult other EN standards for prestressed concrete pipes, joint testing, hydraulic design and installation practices to ensure a complete specification and compliance.

Keywords: EN 641:1994, reinforced concrete pressure pipes, cylinder type, joints and fittings, DN/ID 250–4000, pretensioned wrapped reinforcement, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-1996
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NRVL
Reinforced concrete pressure pipes, cylinder type, including joints and fittings
Stahlbetondruckrohre mit Blechmantel einschließlich Rohrverbindungen und Formstücke
Tuyaux pression en béton armé a âme en tôle, joints et pieces spéciales compris
Ta slovenski standard je istoveten z: EN 641:1994
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.
...