Detail zboží
135804 - ČSN EN 1491 - Armatury budov - Expansní ventily - Zkoušky a požadavky | ||
| Název : 135804 - ČSN EN 1491 - Armatury budov - Expansní ventily - Zkoušky a požadavky
Označení normy : ČSN EN 1491 Katalogové číslo : 516035 Třídící znak : 135804 Účinnost : 2023-02-01 Věstník : 2023.01 Strany : 28 Převzata :vyhlášením ve Věstníku - v angličtině TATO NORMA JE NEPLATNÁ | ||
| Cena : | 335.00 Kč (DPH= 0%), s DPH= 335.00 Kč | Nelze zakoupit |
| ANOTACE "ČSN EN 1491 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 st.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)." | ||