
Flap flow indicator for liquids with graduated scale, allowing the flow rate to be read between 2.1 and 24 l/min, up to 16 bar and 200 °C.
Unlike simple flow presence indicators, this flap indicator allows the flow rate to be read: the position of the flap relative to the graduated scale directly shows the flow. The body is made of red bronze (gunmetal) and connections range from G ½ to G 1.
The passing liquid deflects the flap by an amount that depends on the flow rate; comparing its position with the scale gives the instantaneous flow value.