Circulation Pumps for Thermal Oil and Hot Water

Circulation pumps with shaft seal for pumping of thermal oil up to 350 °C in thermal oil systems or hot water up to about 207 °C in different designs (base plate, block and inline), materials, dimensions, connections and components etc. You can pump different liquids and hot water with absolutely no changes with this circulation pumps. You will never find a more universal pump!

Circulation pumps for example are used to pump:

  • Thermal oils
  • Hot water
  • Neutral or aggressive liquids
  • Pure or contaminated liquids
  • Cold or hot liquids
  • Toxic liquids
  • Environmentally hazardous liquids like water
  • Lubrication oils
  • Emulsions
  • Chemical products


  • Volute casing pump
  • Horizontal installation
  • Back pull-out design
  • Single-stage
  • Dimensions and ratings to EN 733


Pump casing:

  • Radially split volute casing
  • Volute casing with integrally cast pump feet
  • Replaceable casing wear rings


Impeller type:

  • Closed radial impeller with multiply curved vanes


Shaft seal:

  • Single mechanical seal to EN 12756
  • Double mechanical seal to EN 12756
Characteristic    Value
50 Hz 60 Hz
Flow rate Q [m³/h] ≤ 1250 ≤ 754
Head H [m] ≤ 102 ≤ 100
Operating temperature
Thermal Oil T [°C] - 30 to +350
Hot water T [°C] ≤ 183
Operating pressure p [bar] ≤ 16
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