Fluid handling, regulation and control

Fluid handling, regulation and control

Fluid handling, regulation and control

Waukesha – SPU pulp & paper

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The Waukesha lobes pumps of the SP series are designed and engineered specifically for the pulp and paper industry.

For more than half a century, Waukesha Cherry-Burrell has been a leader in the design, manufacturing and application of external circumferential piston (ECP) style, rotary positive displacement pumps. Waukesha Cherry-Burrell PD pumps are in service around the world in thousands of challenging chemical and industrial applications.

The SP Series covers a range of nominal flow rates from 7 gpm to 830 gpm and at 100 CC per minute.

The Waukesha lobes pumps of the SP series can be used as metering pumps.


  • 316 stainless steel pump body and cover.
  • Pumps with water flush seals will run dry indefinately w/ water.
  • Up to 500 (34.5 bar) psi pressure capability.
  • No bearing in product zone.
  • Larger diameter 17-4 PH shafts in seal area for greater strength and stiffness. Helps eliminate vibration; extends seal life on SP-U2 and SP-420/520.
  • Heavy duty bearing frame.
  • Double tapered roller bearings on all models. Contribute further to precise rotor position and longer seal life.
  • Grease lubed bearings for positive lubrication to all bearings over entire speed, temperature and pressure range.
  • Operates up to 300°F capacity upon application.
  • No internal rotor contact eliminates need to rely on pump fluid as a lubrication.
  • NPT or ANSI flange configuration available.

Typical product applications:

Coating Pigments / Polymers / Starch Slurry / GCC Fillers / PCC Fillers / TiO2 Fillers / Kaolin / Cooked Starch / Emulsions / Resins / Retention Aids / TiO2 Slurry / Specialty Chemicals.

Benefits of Universal SP Series

  • Pumps with water flushed seals can run dry indefinately
  • Pumps filled with settled slurries will start without damaging pump or seals
  • Will not damage shear sensitive products
  • Smooth pulsation free flow
  • No internal rotor contact
  • Requires less horsepower than Progressing Cavity Pumps
  • Shaft timing is not critical like on lobe pump designs
  • No cross contamination of oil into product zone due to unique gear case design
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