Rockwin offers the fuel gas flow meters for all non-aggressive gases. These include natural gas, lpg, acetylene, ethane, coke oven gas, town gas, carbon-dioxide, nitrogen, and all inert gases. The principle of operation is based on direct velocity metering. The gas flow is narrowed to a definite cross-section, rotating an impeller whose angular velocity is proportional to the mean velocity of the gas flow within the ranges indicated. These are available in 50-300 mm sizes having flow capacities ranges from 10 to 6500 m3/hr. Mechanical local register is standard for all the models. Additional hf and lf pulse transmitting modules are available for interfacing with computers and secondary instrumentation for remote indication of total flow, flow rate, batching, flow alarms, etc.
