Consists of a perforated nickel plated brass bar (1).
Variable number of flow meters with built-in flow rate control valve (2).
On the transparent slide with graduated scale (3) located at the top of the meter, it is possible to read in real time the value of the flow rate of each single ring of the floor system, the reading range of the gauges is 0 ÷ 4 l / min section collectors G1 "and 0 ÷ 8 l / min for collectors from G1" ¼.
Thanks to the control valve, it is possible to precisely adjust the flow of the individual rings, which greatly simplifies and greatly speeds up the calibration of the circuit. If necessary, the same valve allows intercepting each circuit, excluding it from the system.