Abstract: Metering valve having a valve body containing a metering chamber defined by a chamber insert and two annular seals, a valve seal and a chamber seal, the chamber insert having a cylindrical wall, an upper edge cooperating with the valve seal and a lower edge cooperating with the chamber seal, a valve sliding axially in the valve body between rest and dispensing positions. The valve is urged towards its rest position by a spring cooperating with the valve body and with the valve. The upper edge of the chamber insert has an annular cutout formed on the radially inner side of the upper edge so that the width of the upper edge in contact with the valve seal is the same, whatever the width of the cylindrical wall. The metering chamber has a variable volume, in particular between 35 and 65 ?l, defined by the axial dimension of the cutout.

Abstract: A method for analysing a device for spraying a pharmaceutical fluid product including the following steps: providing a spray head of a device for spraying a pharmaceutical fluid product, the spray head having a spray orifice; providing a receiving surface having a plurality of discrete contact zones separated by voids, the contact zones capable of being coated with a heat sensitive material, bringing the receiving surface to a temperature T2, passing a flow of compressed gas through the spray orifice, the flow of compressed gas at a temperature T1 which differs from T2, sending the flow of compressed gas at temperature T1 onto the receiving surface at temperature T2, visualising the impact zone for the flow of compressed gas on the receiving surface, and analysing the visualisation of the impact zone in order to determine whether the spray head complies with predetermined specifications.