RO
SR EN 488+A1:2014
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
This European Standard specifies requirements and test methods for valves of prefabricated thermally insulated valve assemblies comprising a steel valve, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with pre-insulated pipe assemblies in accordance with EN 253. This European Standard applies only to insulated valve assemblies for continuous operation with hot water at various temperatures in accordance with EN 253:2009, Clause 1 and the valve assemblies with a maximum operation pressure of 25 bar. For higher pressures, additional demands apply. Guidelines for quality inspection are given in Annex A of this European Standard. NOTE For this application, the following valve types are commonly used: ball valves, gate valves, and butterfly valves. This European Standard does not include calculation rules for loads and stresses. These depend on the configuration of the system as it is installed. The design and installation rules are given in EN 13941:2009+A1:2010.
Status :
Withdrawn
Approval date : 7/31/2014
Withdrawal date : 4/29/2016
Number of pages : 32
ICS : 23.060.01 Valves in general
Technical Committee : 302 - Space heating appliances, ventilation and room air conditioner
- Replaces SR EN 488:2011
- Normative reference SR EN 13941+A1:2010
- Normative reference SR EN 10204:2005
- Normative reference SR EN 14419:2009
- Normative reference SR EN ISO 12944-2:2002
- Normative reference SR EN 10088-1:2005
- Normative reference SR EN ISO 12944-5:2008
- Normative reference SR EN 19:2003
- Normative reference SR EN 736-1:2002
- Normative reference SR EN 448:2009
- Normative reference SR EN 253+A1:2013
- Normative reference SR EN 12266-1:2012
- Replaced by SR EN 488:2016