Abstract: A metering valve for use with a pressurised dispensing container, the metering valve comprising a valve stem assembly co-axially slidable within an annular metering cumber defined between the valve stem assembly and a substantially cylindrical chamber body, the metering naive further comprising an outer seal extending between the valve stem assembly and tome chamber body to seal off an outer duct of the valve stem assembly from the metering chamber when the valve stem assembly is in a non-dispensing position and an inner seal extending between the valve stem assembly and the chamber body. The valve stem assembly comprising a straight, central passage extending from an open inner end of the valve stem assembly to a mid-point of the valve stem assembly located longitudinally within the metering chamber.