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Measuring Tube
The metering tube has a high precision internal taper, made from thick walled borosilicate glass. For certain sizes, this may be a moulded tube with an external taper and for others, it may be a drawn tube with practically no outside taper. The metering tube can also be made out of perspex or stainless steel.
A special feature of our process is the possibility of giving an expanded scale at any desired range of flow, within the specific flow range. The calibration marks are directly fused on the metering tube during the process of annealing. A white background is similarly fused into the glass surface, at the rear side. If required, etching and markings on the metering glass tubes are also provided, using ceramic based colours.
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