Single-line pumping groups for solar systems with high-efficiency circulation pumps featuring PWM control.
On the return line, there is a 3-way ball valve with an integrated check valve and thermometer (0-160 °C); specifically designed for solar systems, the high-efficiency circulation pump Grundfos UPM3 Solar with PWM control; a safety group (6 bar) with a pressure gauge (0-10 bar) with an outlet (3/4″ G) for the expansion tank; a flow meter (1-6, 2-12, 8-28, 8-38 l/min) with a flow regulator and valves for draining/filling the system.
Pumping groups are equipped with an insulating cover and the option to install a microcontroller. Maximum operating temperature is 150 °C.