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On Flow Measurement F-0004

How To Read The Flowrate (Glass Tube Flowmeters)

Different types and designs of float are used for glass tube variable area flowmeters.
The reading positions by float are specified by Standard and in Japan, JIS B7551 "Float type Variable Area Flowmeters" governs in which the following description is shown;

JIS B7551

Positions for reading of scale on movable part

In our actual products, the following types of float are used and their reading points are as follows
(position of Arrow)

Reading points

Reading points