This variable flow static mixer, for any fluid handling system, automatically adjusts to hold the head loss constant over 80 percent of the flow range. The Model 2900 Variable Flow Static Mixer optimizes mixing and minimizes head loss by employing two in-line wafer type mixers, one fixed and one variable, which adjust incrementally to maintain constant head loss. Providing consistent mixing over a 20:1 turndown ratio, this mixer reduces overall system head loss at high flow rates and permits the use of smaller pumps. Saving energy and pump wear-and-tear, the mixer is available in sizes from 3/8 inch to 120 inches I.D. Separated by a distance equal to two pipe diameters; as the flow velocity increases, the variable mixer opens to reduce excessive head loss. The fixed mixer has a 0.9 Beta ratio and the variable mixer has a 0.7 Beta ratio.
Westfall Manufacturing Co., Bristol, RI 02809. www.westfallmfg.com or call 888-928-3747