This Standard describes the common variable area flowmeter. This Standard does not attempt to standardize dimensions because the commercial products differ too widely. The variable area meter is manufactured in a variety of designs. This Standard addresses only those meters based on a vertical tapered tube of round or a modified round cross section. Specifically not addressed are the various vane type meters, eters with horizontal flow, or meters which use a spring deflection to oppose flow forces.
ASME MFC-18M-2001 history
0000 ASME MFC-18M-2001(R2016)
2001ASME MFC-18M-2001 Measurement of Fluid Flow Using Variable Area Meters