Gorator Pump Brochure
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The Mighty Gorator Pump

The Dorr-Oliver Gorator pump It sizes, reduces, disperses, separates, delumps, grinds, chops, macerates and it even pumps. The Gorator works on a simple inclined rotor principle, which gives the machine its self-cleaning, non-clog, trouble-free characteristics under the most difficult conditions, with a rotor at an oblique angle on the end of the pump shaft. Rotation of the impeller produces a centrifugal action which pumps the material and discharges it radially through the outlet. Notched teeth in the rotor plate mesh with teeth in peripheral stator bars to chop the material during its...

How the Dorr-Oliver Gorator works Cover Hinged for easy access to service the inside of the housing Rotor 17-4PH stainless steel Inclined Rotor Plate has notches to intermesh with the liner bar teeth Cover liner bars & discharge liner bars 17-4PH notched bars match Rotor Plate to shear material Inlet Large inlet allows solids entry

Bearing Housing Oil lubricated Casing Heavy-duty 304 stainless steel cast construction Discharge Liner Bars 17-4PH precipitation hardened stainless steel offset liner bars mounted on 19 hole end segments provide great flexibility in bar spacing for solids detention and particle size control.

Typical applications Pulp and paper This rugged processing machine solves many problems in pulp and paper mills. The Gorator prevents plugging of black liquor guns in recovery boiler systems. It breaks up ground wood bull-screen rejects. It has proven very effective in dispersing wet-strength secondary fiber. And because the Gorator is so efficient in breaking, deflaking and fiberizing, it gives mills 50% more production out of pulpers, reducing total required horsepower days per ton. It’s also economical for small peripheral repulping systems. The meshing of rotor plate and stator teeth...

Typical applications Industrial wastewater A variety of industries find the Gorator useful in processing industrial wastewater. It is being used by chemical and petrochemical plants to disintegrate liquid waste prior to incineration. Waste is recycled around hot and cold tar holding tanks to protect feed pumps and incinerator nozzles. The chemical process industries The Gorator sizes, shreds and pumps plastics, rubber and adhesives. FLSmidth Minerals’ mighty Gorator is several machines in one. It saves time, space and money for quicker payback on initial investment for companies in the CPI...

municipal applications survival under tough sludge screening and scum and sludge disintegration service. Size reduction and disintegra- tion is a back-breaking test for any sludge grinder. But the 4x3x8 Gorator has been specifically designed to stand up to and handle this rough service. It is the most cost effective unit of its type on the market, offering savings in wear, maintenance and power use. To make it more durable, especially with the presence of grit residue, the new Gorator uses tool steel for the liner bars. And to reduce wear and power consumption, Current municipal wastewater...

process applications Construction: Split casing, inlet flange and adapter plate furnished in cast 304 stainless steel. Rotor plate, liner bars, end liner segments are precision cast and polished 17-4 PH, abrasion resistant stainless steel. Seal Assembly: Either lantern ring and packing or double mechanical seal. Rotor: 10" dia., notched. Liner bars: Grooved, discharge slots can be adjusted in 3/16" increments for highly variable process requirements. Processes whatever enters through 6" inlet. Discharge outlet is 4". Horsepower Construction: Seal assembly, rotor and iner bar specifications...

PP (V angled rotor pump) 4x4 Construction: Wetted parts wear and impact resistant, heat-treated WS Meehanite. Rotor assembly abrasion resistant steel. Shaft heat treated 4140 steel. Bearing frame of cast iron. Seal Assembly: Water lubricated conventional packed stuffing box. Rotor: Dynamically balanced 8”, V-angled. This non-clog pump is especially suited for high viscosity slurries containing large quantities of debris. Has large clean-out port in volute housing. Usually furnished with vari-drive motor for flow rate control and minimum horsepower usage and wear. Horsepower ranges up to 60...