Factors to consider when selecting flow valves, check valves, and accessories

■ Pressure range
■ Traffic
■ Body (accessory) material
■ Structure and size
■ Installation method
■ Connection port
■ Flow direction
The most important factors to consider when selecting flow valves, check valves, and accessories are pressure, flow, material resistance to the surrounding environment, interface size, mounting method, and length of tubing.
In addition, existing internal threads, external threads, plug-in connectors, etc. should be used whenever possible.