Flow meters; Flow regulators for commercial use for controlling flow rates of gases, liquids, and slurries; Flow switches for monitoring and controlling the flow of gases or liquids; Metering orifices, namely, orifice plates for metering or controlling the flow rate of liquids; Automatic liquid-flow control machines and instruments; Automatic valves for controlling flow rates of gases, liquids, and slurries; Control valves for regulating the flow of gases and liquids; Gas flow meters; Gas flo...

electronic flow meter