Centrifugal Pumps Coupled to Hydraulic Motor

(Includes Hydraulic Motor)

  • Patented Vac-U-Seal impeller design creates a vacuum between the impeller and mechanical seal. Lack of pressure on the seal face minimizes seal wear and results in a longer seal life.
  • Double wet seal design provides for continuous lubrication of the seal faces. This wet seal design allows the pump to be run dry for extended periods with no damage to the mechanical seal faces.
  • Closed impeller design minimizes thrust loading on the drive motor extending the life of the drive motor. Impeller wear actually increases performance.
  • Extra thick cast walls provide extra strength and extend the life of the unit due to abrasion and corrosion.



ModelPump TypeMax Capacity (gpm)Capacity (@ 25 psi)Max
(psi @
Max Speed (rpm)Max Power (hp)Inlet & Outlet FPT
S-3220-PH2″ straight, hydraulic drive197140393600102″
S-3325-PH3″ straight, truck pump, hydraulic drive365310603600103″
SP-3240-PH2″ self-priming, hydraulic drive20011242360052″
SP-3345-PH replaces SP-3325-PH3″ self-priming, truck pump, hydraulic drive340265643600103″


  • Low flow hydraulic motors are available on hydraulic truck pumps straight 3″ (model S-3325-PHL) and self-priming 3″ hydraulic truck pump (model SP-3325-PHL). Standard motors require 25 gpm for full pump flow and low flow motors require 14 gpm.
  • To add flanges, add “-FLG” after part number (i.e., SP-3345-PH-FLG).
  • To add carbide seals (available on 2″ and 3″ pumps), add “-C” after part number (i.e., SP-3345-PH-C).


  • 116001-01: 2″ NPT to 220 series flange adapter, ductile iron.
  • 116002-01: 3″ NPT to 300 series flange adapter, ductile iron.