The document specifies materials, surface coatings and finishes of the product, dimensions, hydraulic characteristics, tightness and mechanical properties, tests, marking and presentation of expansion valves.
DIN EN 1491:2000 history
2022DIN EN 1491:2022-09 Building valves - Expansion valves - Tests and requirements; German version EN 1491:2022
2022DIN EN 1491:2022 Building valves - Expansion valves - Tests and requirements
2021DIN EN 1491:2021 Building valves - Expansion valves - Tests and requirements; German and English version prEN 1491:2021
2000DIN EN 1491:2000 Building valves - Expansions valves - Tests and requirements; German version EN 1491:2000