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Seat Valve Piston Pump HSP

Transports Highly Viscous Materials with a Low Content of Foreign Bodies

The HSP (hydraulic seat valve pump) is an oil-hydraulic piston pump with hydraulically actuated seat valves. It 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.

Key Features

  • Valve discs and valve seats made of highly wear resistant steel for a longer lifetime
  • No backflow at high pressures
  • Delivery pressure up to 1885 psi (130 bar)
  • Easy to install damping tanks
  • More effective with material containing a high proportion of air Outputs up to 261 yd³/hr (200m³/hr)

Technical Details

General Information

  • Output
    25-400 m³/hr
  • Delivery Pressure
    70-150 bar
  • Delivery Cylinder Length
    Up to 2500 mm
  • Cylinder volume per stroke
    Up to 523 l
  • Length x Width x Height
    Up to 9500 x 2400 x 2100 mm
  • Weight
    Up to 32000 kg


Trankärrsgatan 20
425 37 Hisings Kärra
Tel: +46 (0)31 49 80 90
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