The Westfall Model 4000 Open Channel Mixer consists of a pipe fitted with an inlet cone that is mounted in a bulkhead and features three sets of vanes that are strategically placed to create vortices and multiple zones of turbulence that intersect to produce optimal mixing. Providing excellent mixing with CoV 0.008, 10 dia. downstream, this mixer has no moving parts and eliminates energy consumption totally, according to the manufacturer. Suitable for installation into open channels up to 20-feet wide by 20-feet deep, the Westfall Model 4000 Open Channel Mixer eliminates powered mixers, gear boxes, propellers and related energy and maintenance costs. This mixer’s low pressure loss characteristics are very desirable and the raked angles of the vanes prevent fouling and mitigate swirl to produce a smooth flow.