Flocculators- Horizontal and Vertical


Horizontal and Vertical Flocculators Overview:

WesTech Flocculators are custom designed for all your flocculation needs. Energy is transferred into water through the use of paddle wheels which promote particle agglomeration to form large, fast-settling floc particles. Typically the process applies tapered flocculation to the inlet stream, where the first stage has high energy input (velocity gradient), and subsequent stages have a reduced velocity gradient.

Flocculator mechanisms can be oriented horizontally or vertically depending upon drive location and/or customer preferences. Horizontal flocculator drives can have a dry well (requiring a wall penetration) or a wet well arrangement.

Configurations and Materials of construction include:

Shafting and paddle supports - epoxy coated carbon steel, chroming, or 304/316 SS

Paddles - FRP

Bearings - Cast iron pillow blocks with UHMW liners of roller bearings

Chain - Non-metallic, steel or stainless steel

Shaft Design - flanged or coupled

Seals - Cast iron stuffing box with teflon packing

WesTech can also supply all supporting equipment for a complete package, such as torque monitoring and protection, variable speed controls, steel tankage, and electrical panels.


  • Shaft-mounted direct drive
  • High quality materials of construction 
  • Variable speed drives


  • Direct drives eliminate chain and sprockets
  • Reduced maintenance and longer useful life of equipment
  • Operational control of velocity gradient for seasonal changes to raw water


  • Surface Water Clarification
  • Phosphorus Removal
  • Backwash Water Treatment