Main benefits
  • Centerline mounting to allow free thermal expansion and high nozzle loads
  • Minimum bearing span to minimize shaft deflection
  • Single cover casing design to reduce overhaul times
  • Carbon steel or chrome steel casing with excellent mechanical properties 
  • Double mechanical seal provides safer operation
Main applications
  • Main heat transfer fluid (HTF) circulation in concentrated solar power stations
Main design features
  • Double suction impeller with staggered vanes for low Net Positive Suction Head required (NPSHR) and low-pressure pulsations
  • Different nozzle positions are possible
  • Amply sized sleeve radial and tilting pad bearings with forced lubrication as standard
  • Optional self-contained oil lubricated bearings
  • Stiff shaft ensures that critical speed is a minimum of 20 % above the maximum operating speed
  • Mechanical seal jacket cooling
Key characteristics
Capacities Up to 4,000 m3/h / 17,500 US gpm
Heads Up to 340 m / 1,115 ft
Pressures Up to 48 bar / 700 psi
Temperatures Up to 425°C / 800°F
Discharge sizes Up to 400 mm / 16 inches
Performance range
HZB-HTF performance range 60 Hz
Performance range 50 and 60 Hz


  • Heat transfer fluid pump
    Heat transfer fluid pump (HTF) pumps circulate thermal oil through the parabolic troughs to heat it up and pump it to the solar steam generator. The main characteristics of the HTF pumps are their high temperature and their double sealing system. Depending on the plant size, HTF pumps can be either double or end suction type.

You may also be interested in

Contact us