INTRUDRRR Series 3505FP description The INTRUDRRR series 3505FP is a direct flanged/in-line high rate mixer designed for non-vacuum flash mixing of liquid chemicals into low or high pressured pipelines, closed conduits, or tanks. They easily install vertically or horizontally through 6”or 8” ANSI flanges providing superior velocity gradient mixing intensity in pipelines 6” and larger in size. They are supplied with a 316 stainless steel flange welded to the mixer barrel for direct mounting to the pipeline flange. The mixers require pipeline shut down to remove for maintenance inspection. They are supplied standard with two isolated chemical feed ports for multiple chemical feed applications. Optional 316 stainless steel knife gate valves may be supplied in 6” or larger flange sizes. The series 3505FP utilizes a close coupled rugged and reliable U.S.A. manufactured TEFC severe duty chemical process motor for indoor/outdoor service in corrosive environments. The mixers are available in 2 - 25 HP ranges for feed rates up to 70 GPM liquid chemical per unit.     The INTRUDRRR series 3505FP utilizes a Hasteloy-C mixing element for a high GPM axial dispersion of the chemical mix in small or large diameter pipelines.