This European Standard specifies, dimensions, materials and performanceT requirements metnoas or testy ror expansion vanes, or nommai sizes nom }m i〕IO 1lIV }hU, navmg worxiluding pressures') from 0,1 MPa (1 bar) to 1,0 MPa (10 bar). Expansion valves are intended for fitting toThe cold water supply of storage water heaters, having a maximum distbution temperature of 95 0C, for all energy sources. Expans ion valves do not controlThe temperature and alone does not constituteThe protectionrequired for storage water heaters. Expansion valves limit pressure, inThe water heaters to whatThey are fitted, that is produced byThermal expansion of the water.
EN 1491:2000 history
2022EN 1491:2022 Building valves - Expansion valves - Tests and requirements
2000EN 1491:2000 Building valves - Expansion valves - Tests and requirements