SIST EN 642:1996
(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 pieces spéciales et prescriptions particulieres 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
- 29-Feb-1996
- Technical Committee
- IOVO - Water supply and waste water engineering
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Mar-1996
- Due Date
- 01-Mar-1996
- Completion Date
- 01-Mar-1996
- Directive
- 89/106/EEC - Construction products
Overview
EN 642:1994 (adopted nationally as SIST EN 642:1996) is a CEN standard that specifies requirements and manufacturing rules for prestressed concrete pressure pipes - both cylinder (with metal cylinder or lining) and non‑cylinder types - including joints, fittings and specific requirements for prestressing steel. The standard applies to pipes with nominal/internal diameters from DN/ID 500 to DN/ID 4000 (larger sizes may be manufactured using the same concepts). Pipes are designed to meet purchaser‑designated internal pressure, external loads and bedding conditions.
Key Topics
- Scope and applicability - types of prestressed concrete pipes covered (cylinder and non‑cylinder) and size range (DN 500–4000).
- Manufacture and quality - general manufacturing requirements and workmanship expectations for pressure pipe production.
- Prestressing steel requirements - provisions for the selection, performance and use of prestressing wires/strands specific to pressure pipes.
- Joints and fittings - requirements for pipe joints, seals and special fittings to ensure pressure integrity and field assembly.
- Design criteria - design against internal pressure, external loads (soil, live loads) and bedding/installation conditions as specified by the purchaser.
- Inspection and testing - provisions for verifying conformity to requirements (manufacturing checks, dimensional control, likely hydraulic testing and inspection protocols implied by standard practice).
Applications
EN 642 is practical for projects and industries that rely on large‑diameter pressure pipelines, including:
- Water transmission and supply mains (long‑distance raw and potable water pipelines)
- Irrigation and drainage systems
- Hydropower penstocks and pressure conduits
- Industrial process pipelines where high internal pressures are present
- Municipal and regional infrastructure projects specifying robust, long‑span pressure pipes
Who uses this standard:
- Pipeline designers and civil engineers
- Concrete pipe manufacturers and fabricators
- Utility owners and contracting firms
- Procurement/specification authors and quality inspectors
Related Standards
- National adoptions (e.g., SIST EN 642) implement the CEN text.
- For complementary guidance, consult other CEN standards and national regulations covering concrete materials, jointing systems, testing methods and structural design practice for buried and exposed pipelines.
EN 642 is essential when specifying or producing prestressed concrete pressure pipes, ensuring consistent quality, safe design for pressure and load conditions, and compatibility of joints and prestressing steel across projects.
Frequently Asked Questions
SIST EN 642:1996 is a standard published by the Slovenian Institute for Standardization (SIST). 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.
SIST EN 642:1996 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.
SIST EN 642:1996 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.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-1996
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VWLNLID]RQVNLPLGHOLLQSRVHEQH]DKWHYH]DMHNOR]DSUHGQDSHQMDQMH]DFHYL
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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