Highly visible nylon indicator ball is housed in clear polycarbonate and rotates in circular channel during flow providing immediate visual indication of water/liquid flow.

• Nylon ball in clear polycarbonate housing
• Flow rate indicated by speed of ball's rotation
• Circular channel provides immediate visual indication of liquid flow

Continuity and relative flow rate indicated by speed of ball's rotation and an arrow shows direction of flow. A minimum water flow rate of 100/ml per minute in a horizontal position and 140 mL per minute in a vertical position is required to mobilize the ball. Upper flow limit is in excess of 1 liter/minute. Maximum working pressure is 10 p.s.i.g. (69 kN/m2). The polycarbonate indicator measures 30 x 57 mm (1-1/5 x 2-1⁄4") with two 23 mm (.9") long tube extensions to accept 6.4 mm (1⁄4") to 9.5 mm (3/8”) I.D. tubing. Overall size is 76 x 57 mm (3 x 2-1⁄/4").