The flow indicator provides immediate visual indication of water,air or gas flow. The highly vidible red nylon ball rotates in acircular channel during flow.Continuity and relative flow rate are indicated by the speed of the ball's rotation.The minimum flow rate to actuate the ball with water is 50ml/min. in horizontal position,140ml/min. in vertical position. With air,the minimum flow rate is 3 liter/min. in horizontal position,8 liters/min. in vertical position. Max. working pressure is 10 psi.Measures 39mm x 57mm with two 23mm long tube extensions to accept 1/4'' to 3/8'' I.D. tubing. An arrow for direcional flow. Clear polystyrene.
This component is connected in-line with the circulation tube to check the circulation of the coolant. When the coolant is actively circulating, the cap inside the flow indicator shakes rapidly, providing easy indication of the circulation status.