The Thelmar Weir – Insertable Volumetric Weir for Flow Measurement in Pipes

By Trey | | Comments Off on The Thelmar Weir – Insertable Volumetric Weir for Flow Measurement in Pipes

Thelmar Insertable Volumetric Weirs are commonly used for temporary flow measurement in a pipe, or manhole; with relatively low flows.   The Thelmar weir is calibrated compound weir that is inserted into the invert of a pipe and incorporates a 90° v-notch for measuring lower end of the range; then opens into a rectangular weir at…

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