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Industrial Pumps


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  • The HSP is an oil-hydraulic piston pump with hydraulically actuated seat valves.
  • The HSP is used to transport highly viscous materials with a low content of foreign bodies at smaller particle sizes (diameter < .2” (5mm)).
  • All moving parts are connected to a central grease lubrication system in order to increase the lifetime of the components.


  • Valve discs and valve seats made of highly wear resistant steel for a longer lifetime
  • No backflow at high pressures
  • More effective with material containing a high proportion of air Outputs up to 261 yd³/hr (200m³/hr)

  • Delivery pressure up to 1885 psi (130 bar)
  • Easy to install damping tanks


The seat valve pump, the HSP series, is suitable for challenging applications, handling pasty and highly viscous materials with low foreign body content and small particle sizes. Precise valve sealing allows for exceptionally high pumping pressures. The hydraulic and pumping piston design ensures maximum reliability and availability. Putzmeister’s design offers easy valve replacement and extends the service life of all wearing parts, thanks to wear-resistant materials. The unique design allows valves and valve seatings to be used at either end, doubling their service life and enabling easy valve replacement without disassembling delivery lines. For a smooth, pulsation-free conveyance, the PCF system (Pressure Constant Flow) is an optional feature.

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