Dall tube

Dall tube

[′dȯl ‚tüb]
(mechanical engineering)
Fluid-flow measurement device, similar to a venturi tube, inserted as a section of a fluid-carrying pipe; flow rate is measured by pressure drop across a restricted throat.
References in periodicals archive ?
The Dall tube is a variation of the Venturi tube and the V-Cone is a proprietary device manufactured by McCrometer.