Single-line pump groups for solar systems with high-efficiency circulation pumps controlled by PWM.
On the return line, there is a 3-way ball valve with an integrated check valve and thermometer (0-160 °C); specially designed for solar systems, the high-efficiency circulation pump Grundfos UPM3 Solar with PWM control; a safety group (6 bar) with a manometer (0-10 bar) with an outlet (3/4 “NPT) 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.
Pump groups are equipped with an insulating jacket with the option to install a microcontroller. Maximum working temperature is 150 °C.