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prEN 1491

Building valves - Expansion valves - Tests and requirements

Üldinfo
Kavand
Alusdokumendid
prEN 1491
Tegevusala (ICS grupid)
91.140.60 Veevarustussüsteemid
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
Põhitekst
01.10.2000
Põhitekst
This document specifies dimensions, materials and performance requirements (including methods of test) for expansion valves, of nominal sizes from DN 15 to DN 32, having working pressures ) from 0,1 MPa (l bar) to 1,0 MPa (10 bar). Expansion valves are intended for fitting to the cold potable water supply of storage water heaters, having a maximum distribution temperature of 95 °C, for all energy sources. Expansion valves do not control the temperature and alone do not constitute the protection required for storage water heaters. Expansion valves limit pressure, in the water heaters to what they are fitted, that is produced by thermal expansion of the water. NOTE The use of the device specified in this document does not override the need to use controls (e.g. thermostats and cut-outs) which act directly on the power sources of water heaters (for more information see Annex A).
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EVS-EN 12897:2016+A1:2020

Veevarustus. Definitsioonid soojusvahetiga rõhulistele (kinnistele) mahtveesoojenditele
Uusim versioon Kehtiv alates 17.02.2020