SIGHT INDICATE FLOW METER

摘要

Disclosed is a sight indication flow meter installed in a pipe through which a fluid flows to measure the rate of flow. The disposed indication flow meter comprises: a tube for fluid flow connected to the pipe; a flow rate measuring tube connected to opposite faces of the tube for fluid flow to be perpendicular to the tube for fluid flow, and having a smaller diameter than that of the tube for fluid flow; a plate-shaped flapper installed to cross the flow of the fluid passing through the fluid flow pipe in the flow rate measuring tube to rotate by the flow of the fluid, and having a first part having a rectangular shape and extending in the longitudinal direction of the flow rate measuring tube, and a second part formed by extending convexly downwards from the lower end of the central part of the longitudinal direction of the first part; and a flow rate display window made of transparent glass installed to interrupt opposite ends of the flow rate measuring tube, and having flow rate indicating graduations indicated depending on the rotation angle of the flapper on the surface thereof.