About Pump mr b

Single threaded or flanged bronze circulators for three-speed domestic water circulation, with threaded or flanged connections


  • AISI 316 rotor can without welding points
  • Practical and easy to use
  • High efficiency

description Pump mr b

Single threaded or flanged circulators for sanitary water with three speeds and with permanent magnet motor and bronze body.
The MR B is available with both threaded and flanged connections.
For further technical information see the Databook

• Circulation of domestic water

Overview of technical data mr b

Flow ratefrom 0.5 to 25.0 m³/h
Total headFrom 0.5 m to 12.0 m
Max. working pressure10 bar
Max. ambient temperature0 ÷ +40°C
Max. temperature of the liquid-10°C ÷ +65°C
Insulation classH
Protection degreeIP43 for three-phase
IP44 for single-phase
VoltageSingle-phase 1~230V
Three-phase 3~400V

Material Pump mr b

Pump bodyBronze
ShaftStainless steel AISI 420 (EN 1.4021) and 431 (EN 1.4057)
Rotor canStainless steel AISI 316 (EN 1.4401)


• Total head: 1 ÷ 12 m
• Capacity: 0.5 ÷ 45 m3/h
• Liquid temperature: +5°C ÷ +65°C
• Ambient temperature: -10 ÷ +40°C
• Maximum pressure: 10 bar


• Pump casing in bronze
• Runner in polyamide
• Shaft in stainless steel
• Radial bearing in graphite
• Separator tube and plate in stainless steel AISI 316