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Circulation, Sealless Pump, Cast-iron

  • Code: RS 370
  • Weight: 9,00 kg

Circulation, Sealless Pump, Cast-iron | 2"

4 128,00 Kč
Prices are stated without VAT

Basic information

  • Material: pump body – cast-iron, PP (control box), ceramics (bearing, shaft)
  • External thread 2“ (Connection fitting female thread 1 1/2 ")
  • Connection pipe diameter: 28.5 mm
  • Pump size (pitch of threaded connections including connection fittings): 280 mm
  • Voltage: 1–230V ±10
  • Condenser Capacity: 8 µF
  • Max. power consumption P: 450 W
  • Mains voltage frequency: 50 Hz
  • Max. flow: 170 l/min
  • Max. výtlačná výška: 11 m
  • Cover: IP 42
  • In 2.0 A
  • Max. working pressure: 10 bar
  • Maximum media temperatures: –10 °C/110 °C
  • Maximum ambient temperature: 40 °C
  • Noise: 45dB

Minimum inlet pressure at the suction side at

+50 °C0.05 bar
+95 °C0.3 bar
+110 °C1.0 bar

These values are valid up to an altitude of 300 m. For higher altitudes add 0.01 bar / 100 m. The minimum inlet pressure must be observed to prevent cavitation.


  • Water intended for heating.
  • Water and water/glycol mixture in max. 1: 1 ratio. Glycol mixtures require a reassessment of the hydraulic parameters of the pump in the context of increasing viscosity, which depends on the mixing ratio. Only additives approved by the manufacturer with corrosion inhibitors may be used.

Main application areas of the pump

  • hot water heating and solar systems, air conditioning, boilers
  • in industry, closed circulation systems

The pump must not be used for handling drinking water or for liquids intended for food production.   

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