Setting valve with flow meter (rotameter) for manifold units. Designed to indicate and adjust the flow rate of the heating medium in the connected underfloor or radiator heating circuits during the adjustment (hydraulic balancing) of the system. The scale of the transparent bulb is graduated from 0 to 5.0 l/min. The current flow rate value is determined by the position of the indicator disc. The flow meter can be disassembled and cleaned if dirty.