Diverter valve

Diverting valves are quite expensive and some types of 3-port valves can suffer from hammering in a diverting application.

control strategy for heat exchanger using diverter valve

If the process medium temperature is high, the TIC with respect to the measurement TIT opens the three way control valve, so that the flow rate of process medium through cooler is increased and flow rate of process medium through by-pass is decreased. So the temperature of process fluid is decreased, because more fluid is flowed through the cooler.