A fluid power device having at least one pressure regulator whose regulator housing is fitted at the end side with a manometer. In order to ensure readability of its display face when looking at it from different angles the manometer is able to be positioned at different alignments in relation to the regulator housing. For this purpose the manometer is mounted on a holder, which is able to be pivoted in relation to regulator housing about an axis of rotation perpendicular to the longitudinal axis and to the upright axis of the pressure regulator to present different display positions.