Venturi tubes
Diameter
Flow rates
Instructions for use
Geometry
Dimensions
Enclosed
Differential-pressure flowmeters
Flow measurement
Fluid inlets
Flowmeters
Flow nozzles
Mathematical calculations
Conical shape
Square shape
Orifice flowmeters
Holes
Channel flow
Fluid outlets
Pipes
Link: PD ISO/TR 15377:2018 Measurement of fluid flow by means of pressure-differential devices. Guidelines for the specification of orifice plates, nozzles and Venturi tubes beyond the scope of ISO 5167
Source: BSI Standards