The Grundfos UPM3 Solar 15-105 130 circulation pump, featuring a wet rotor and manufactured in France, has been specifically designed for use in solar power plants (circulation groups) of solar thermal systems. It is intended for surface installation and can operate in both vertical and horizontal positions. This circulation device is used for pumping heat transfer fluid with a high glycol content in the primary circuits of solar thermal systems, providing independent hot water supply and heating in dual-circuit water heating complexes. It delivers a liquid pressure of up to 10.5 m with a total flow rate of up to 3.0 m3/h. The working temperature of the heat transfer fluid is +110°C, while the maximum should not exceed +130°C.
The device is characterized by high efficiency and economical electricity usage due to its use of a motor with PWM control (pulse-width modulation of current, profile C). At the same time, the motor can also operate in constant curve mode, allowing for the selection of the most suitable method for adjusting the device’s operating parameters in each specific case. The package includes power cables and PWM control.
Key specifications of the Grundfos UPM3 Solar 15-105 130:
Mounting size, mm 130
Speed adjustment steps 3
Head generated, m 10.5
Flow rate, m3 3
Power supply parameters 220V 50Hz
Power, W 2-52
Electrical protection class IP44
Total weight, kg 2.3