ANF380F series metal tube float flowmeter is shown in the figure. It is a flow meter used to measure the instantaneous flow and cumulative flow of fluids (liquids, gases and steam) flowing through closed pipes. It can indicate and output signals remotely. Metal tube float flowmeter is widely used in petroleum, chemical industry, metallurgy, power, food, pharmaceutical, papermaking, water treatment industry and other industrial fields due to its simple structure, simple maintenance and long service life.