Assertion: weir | /r/HasProperty | the v-notch design
Facets:
value: especially
type: OTHER
Source sentences:
text: It is commonly understood in industry that traditional orifice plate flowmeters do not maintain good measurement accuracy much below a third of their full-range flow (a rangeability or turndown of 3:1), whereas weirs (especially the V-notch design) can achieve far greater turndown (up to 500:1 according to some sources).