IBO OHI 25-60/130 Wet Rotor Circulating Pump, 3-Speed, 6 m Max Head, 3.5 m³/h, Cast Iron, 230 V

Heating systems and hot water circulation often suffer from inefficient flow, leading to uneven temperatures and wasted energy. The IBO OHI 25-60/130 circulating pump tackles these issues head-on with a robust wet rotor design and three selectable speeds, ensuring optimal water movement for residential and light commercial applications.

Who is it for

This pump is ideal for installers, maintenance technicians, and homeowners who need a reliable, easy-to-install circulator for closed-loop heating systems, solar thermal circuits, or domestic hot water recirculation. Its standard 130 mm installation length and G 1 1/2" threaded connections make it a direct replacement for many existing pumps.

Main features

• Three-speed manual switch (46 W / 67 W / 93 W) to match system demand and reduce energy consumption.
• Maximum head of 6 metres and flow rate up to 3.5 m³/h for efficient circulation in medium-sized systems.
• Durable cast iron pump body with Noryl composite impeller and ceramic shaft for long service life.
• IP44 protection and class F insulation for safe operation in typical HVAC environments.
• Quiet wet rotor design with maintenance-free operation.

Specifications

• Pump type: Wet rotor circulating pump
• Application: Heating systems, hot water circulation
• Number of speeds: 3
• Max head (speed 3): 6 m
• Max flow rate (speed 3): 3.5 m³/h
• Motor power: 46 W (speed 1), 67 W (speed 2), 93 W (speed 3)
• Nominal connection size: DN25 (1 inch)
• Thread connection: G 1 1/2"
• Installation length: 130 mm
• Voltage: 230 V, 50 Hz
• Protection class: IP44
• Insulation class: F
• Max operating pressure: 10 bar
• Liquid temperature range: +2°C to +110°C
• Materials: Cast iron body, Noryl composite impeller, ceramic shaft

Tips

Select the lowest speed that provides adequate heating to minimise electricity use. Ensure the pump is installed with the motor shaft horizontal to prevent air locks. Flush the system before installation to avoid debris damaging the impeller.