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How they work

A pump or other external pressure source causes a liquid mixture to flow through the hydroclone.

The mixture enters tangentially and spins in the hydroclone’s shaped entry chamber.

Spinning causes the denser fraction (such as particulate solids) to be centrifugally thrown toward the wall of the chamber, then continue on a downward spiral path along the shaped wall to the outlet at the bottom center. This outlet is known as the underflow.

The less-dense fraction moves in the opposite direction, spiraling upward around the center axis of the hydroclone toward the outlet at the hydroclone’s top center. This outlet is known as the overflow.

In most cases a tube called a vortex finder extends downward from top center and acts as the overflow outlet path.

Materials of construction

Hydroclone bodies:  316L stainless steel, urethane-lined 316L, ceramic (alumina), polypropylene, or solid urethane

Clamps:  304 stainless steel

Gaskets:  EPDM or Viton®

Skids and frames (if specified):  304 stainless square tube

Pipework:  polypropylene or 316L stainless.

Other materials available on special order.



Hydroclone arrays

Multiple hydroclones can be manifolded into…
  • Parallel arrays for higher flow rates
  • Valved parallel arrays to allow manual or automatic rate adjustment
  • Series arrays for multistage or multiphase recovery
ChemIndustrial’s clamped flange modularity allows great flexibility in hydroclone configuration, including…
  • Several inlet and overflow geometry choices
  • Extended body lengths to vary separation time
  • Right and left-handed models
  • Integrated options for heavies handling: accumulation chambers, automatic valves and self-clearing underflow nozzles
  • Easy adaptation to meet non-standard requirements