Tubat për ngrohjen centralizuar -Sistemet e tubave të termoizoluar me ngjitje për rrjetat e ujit të ngrohtë të futur drejtpërdrejt nën tokë -Montimi i ventilave prej çeliku për tuba prej çeliku për përdorim të zakonshëm, termoizolimi prej poliuterani

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

Asnjë informacion i shtuar.

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 preinsulated pipe assemblies in accordance with prEN 253. This standard applies only to insulated valve assemblies for continuous operation with hot water at various temperatures in accordance with clause 1 of prEN 253:2002. Guidelines for quality inspection are given in annex A of this standard. Guidelines for installation of valves are given in annex B of this standard. NOTE For this application the following valve types are commonly used: Ball valves, gate valves, and butterfly valves. NOTE This standard does not include rules for calculation of loads and stresses.

SK EN 488:2017 replaces SK EN 488:2008 - 2016-07-22

SK EN 488:2008 i adoptuar në KT.Derivate të Naftës dhe Gazit, shfuqizohet dhe i njëjti kalon me "mirror" në KT.Energji.