- 2 July 2007 -

Flow meter measures gases in crowded installations

Fluid Components International has developed an air/gas flow meter, the ST75V, which can perform in a space-saving design that simplifies installation.

The ST75V, which can measure hydrogen, natural gas, methane, as well as air, oxygen, nitrogen and all inert gases, uses thermal mass flow sensing technology with built-in Vortab flow conditioning and can achieve +1% rdg +0.5% fs accuracy, in line sizes from 0.25 to 2.0 in (6 to 51 mm). The ST75V can measure process gas or air flows from 0.01 SCFM (0.01 NCMH) to 559 SCFM (950 NCMH) and is suitable for both low-flow and high-flow applications. It provides three unique outputs of the mass flow rate, totalized flow and media temperature.

In many applications, either space limitations or other devices, such as valves or elbows, make it impossible to install a flow meter with the required upstream/downstream straight-pipe run, FCI says. This results in swirl and flow profile disturbances that can invalidate the flow meter’s accuracy. The ST75V solves this problem with its Vortab flow conditioning that eliminates media disturbances while reducing the needed pipe straight-run by up to 70%.

www.fluidcomponents.com