# Valves with 2 connections

There are many different types of manually (or remotely) operated valves. FluidFlow contains data for the following types: Butterfly; Diaphragm; Ball; Gate; Globe; Angle; Ball Float; Plug; Pinch; Y-Globe; Needle; Slide; Penstock and Fire Hydrant. All of these types have 2 connections: an inlet and outlet. It is also possible to use 3-way valves and this is covered in the next chapter. Design Note: When creating new models in FluidFlow, it is recommended that users do not use the valve icon titled "V2 Unspecified" from the Component Palette/Bar as this valve is available only for backwards compatibility with older versions of the software. This component allows models developed in FluidFlow Version 2 to be successfully imported into the latest release of the software.