Assignment:
If the valve actuator of below problem has a rangeability of 30 and a maximum stem travel of 5 cm and is to be half-open under the nominal conditions, find the minimum flow, maximum flow, and stem opening for flow.
The level of water in a tank is to be controlled at 20 m, and the output flow rate is nominally through a control valve, as shown in Figure. Under nominal conditions, determine the required valve size in inches and centimeters.
Provide complete and step by step solution for the question and show calculations and use formulas.