What is the primary difference between a two-way and a three-way control valve, and where are they typically used?

The primary difference between a two-way and a three-way control valve is their function in controlling fluid flow within a system. A two-way control valve has one inlet and one outlet, and it simply modulates the flow rate of fluid through it. It acts like a variable resistor, increasing or decreasing the flow depending on the control signal. A three-way control valve, on the other hand, has one in....