The Thel-Mar Volumetric Weir offers rugged construction and non-corroding materials that makes our weir extremely reliable. Our weirs are suited for a variety of different applications. Multiple municipalities, the USDA, the USGS, universities, and commercial and residential developers utilize our weirs. Lehigh University tested the Thel-mar Weir measurements to have a reasonable accuracy depending on environmental conditions and flow situations in which the products are placed.
Our weirs can be manufactured with an optional bubbler tube, and are produced with a 1/8″ O.D. stainless steel tube attached to the right side of the adjustable ring to accommodate data logging equipment for continuous remote monitoring.
Our Volumetric Weirs come in 6″, 8″, 10″, 12″, 14″, 15″, and 16″ sizes, both as a standard weir or with the bubbler tube.