Hedland''s brass variable area flowmeter performs as a reliable, trouble-free flow rate indicator, monitoring process applications under various pressures up to 3,500 PSI, temperatures up to 240 degrees F, and other rigorous conditions. The linear movement of the flowmeter indicator ring gives a quick direct visual reading, against the vertically graduated flow scale, eliminating the need for further calculations or corrections—providing a predictive tool. Using this flowmeter, the user will see the changes in flow rate indicating a problem or possible wear-and-tear of the pump. Predicting an early onset of maintenance will eliminate high costs of unexpected pump down time. Hedland''s variable area brass flowmeters can be installed directly into horizontal or vertical lines or with an optional inverted flow scale, monitoring flow in a downward line. It maintains an indication accuracy within ±2 percent of full scale, with repeatability within 1 percent in any mounting direction. This compact flow meter does not require any flow straighteners or special lengths of straight inlet piping to stabilize turbulent flow patterns. There are also no invasive mechanical linkages, electrical probes or other costly maintenance elements in this design.