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CEN/TC 107/WG 4 - Joints

WG 4 is responsible for the maintenance of EN 489, "Joints", according to valid resolutions, taking into consideration the necessary requirements for all types of joints for pipe elements related to the operation conditions and service life of the pipe system, including materials, assembling methods and field tests. WG 4 shall deal with joint for flexible pipes when WG 10 has produced a reasonably draft.

Joints

WG 4 is responsible for the maintenance of EN 489, "Joints", according to valid resolutions, taking into consideration the necessary requirements for all types of joints for pipe elements related to the operation conditions and service life of the pipe system, including materials, assembling methods and field tests. WG 4 shall deal with joint for flexible pipes when WG 10 has produced a reasonably draft.

General Information

Status
Active
Parent
CEN/TC 107 - Pre-fabricated district heating pipe systems
Standardization Organization
ICS
Directive
Mandate
50
CEN
EN 489-1:2019(Main)
District heating pipes - Bonded single and twin pipe systems for buried hot water networks - Part 1: Joint casing assemblies and thermal insulation for hot water networks in accordance with EN 13941-1
SIST EN 489-1:2020

This document specifies requirements and test methods for joints between adjacent factory made pipe, and/or fitting and/or valve assemblies for buried hot water networks in accordance with EN 13941-1.

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CEN
EN 489:2009(Main)
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
SIST EN 489:2009

This European Standard specifies requirements for joints made under field conditions between adjacent preinsulated pipes and/or fittings in district heating networks. The specified general requirements are also valid for field-made T branches, bends, reducers, caps, etc.
This European Standard covers jointing of steel service pipes by means of fusion welding, the connecting of casing ends with joint casings and the thermal insulation with poured rigid PUR foam or prefabricated PUR-foam insulation.
This European Standard specifies methods for type tests of complete joints and PUR-foam for joints under laboratory conditions.
The requirements of this European Standard can also be applied to casing pipe weldings/connections of on site made fittings.
The requirements of this European Standard aim to obtain a technical life of the joints of at least 30 years.

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CEN
EN 489:2003(Main)
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
SIST EN 489:2004

This European Standard specifies requirements for joints, made under field conditions, between adjacent preinsulated pipes and/or fittings in district heating networks. The specified general requirements are also valid for field made T-branches, bends, reducers, caps, etc.
The standard covers jointing of steel service pipes by means of fusion welding, the connecting of casing ends with joint casings and the thermal insulation with poured rigid PUR foam.
This standard specifies methods for type tests of complete joints and PUR-foam for joints under laboratory conditions. The type tests apply only to straight casing joints which are not-welded.
The requirements of this standard can also be applied to casing pipe weldings/connections of on site made fittings.
The requirements of this standard are aiming at obtaining a technical life of the joints of at least 30 years.

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    24 pages
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50