General Details


An SBS Sludgebuster is a “filter-less filter” that uses centrifugal force, without any filter media, to remove 50 micron and larger separable solids from a fluid stream. The debris is put in a large debris container for emptying and disposal at a later time.
Sludgebusters are used primarily in filtering applications where large amounts of debris are encountered. For example, if you have a quench tank that needs to be hand shoveled once per quarter, an SBS sludgebuster would be enormously beneficial.


  • Sludgebuster costs less to purchase because of it’s simple, trouble-free design. When compared to systems designed for similar flows, a Sludgebuster system will save thousands of
    dollars.cost less install
  • Sludgebuster costs less to install because it will splice into most existing circulation systems. Virtually any system can run cleaner and more efficiently by simply adding a Sludgebuster to the circulation pump outflow system. The only power requirement is a 110-volt connection for the level indicator in the debris receptacle.
  • costs less operateSludgebuster costs less to operate because it’s only power consumption is a small pressure drop through the separator. All the work is done by centrifugal force and gravity.
  • Sludgebuster costs less to maintain because it contains only one moving part — the debris level sensor. With one moving part and no filter cartridges to replace, maintenance will be an expense of the past.
  • Sludgebuster costs less to dispose of accumulated debris because you dispose of only the debris and not expensive filter cartridges. Typically, a ten pound cartridge will only accumulate ten pounds of debris before it has to be thrown out.

The use of eductors is recommended to stir up the heavy debris towards the pump suction.


  1. Dirty liquid, driven by the circulating pump, enters the separator’s tangential inlet and is directed into a spinning motion.
  2. Spinning motion imparts centrifugal force on the solids entrained in the liquid. This centrifugal force throws the debris to the outside wall of the separator.
  3. The friction of the flow rubbing against the steel body of the separator creates a “shear layer” of low velocity fluid allowing the debris to fall to the bottom of the separator and through to the debris receptacle.
  4. The clean liquid travels through a vortex, out through the center discharge, and back to the tank (or to an optional Trash Can ™ polishing filter). AN INSIDE LOOK
  5. As the debris receptacle fills, the liquid is displaced out of the receptacle, leaving a pack of sludge.
  6. When the debris has built to the top of the receptacle, a sensing device illuminates a light indicating that the debris receptacle is full and will need to be emptied soon. Remember though, regardless of when the debris is emptied, it will never interfere with the flow.
  7. The gate knife valve between the centrifugal separator and the debris receptacle is manually closed to isolate the debris from the flowing liquid.
  8. The hinged closure is then opened and the accumulated debris is dumped into a hopper for disposal.
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