DIN EN 1804-3:2010-05

This European standard specifies the safety requirements when used as specified by the manufacturer or his authorised representative for hydraulic control devices including hydraulic valves and their control elements, valve combinations, control systems, pipes and hose assemblies, fittings, shut-off devices, measuring devices, filters, in legs and rams built-in pressure limiting and check valves, water spraying and dust suppression valves. Excluded are electronic control devices, pressure generators, and internal valves of legs and rams (e. g. constant yield valves see 1804-2).