The BERMAD Model IR-920-M0-55-bK integrates a vertical
turbine Woltman-type water meter and a diaphragm
actuated hydraulic control valve. Serving as Flow Meter and
Main Valve, it controls irrigation together with the irrigation
controller. The BERMAD Hydrometer accurately reduces
higher upstream pressure to very low and stable preset
downstream pressure. It either opens or shuts in response to
an electric signal