How does a 3/8 inch aircraft high-pressure flexible hose compare to 3/8 inch metal tubing in the same system?

The comparison between a 3/8 inch aircraft high-pressure flexible hose and 3/8 inch metal tubing in the same fluid system reveals that they have equivalent flow characteristics. This is because both the hose and the tubing are designed to have the same nominal diameter, which directly influences the cross-sectional area available for fluid flow.

In practical applications, while a flexible hose may introduce some additional factors like bends or kinks, when properly installed, it can maintain similar flow rates compared to straight metal tubing. The critical aspect is that they are both categorized under the same diameter, which in an ideal scenario ensures that the flow dynamics, such as velocity and pressure drop characteristics, are largely comparable.

The design and construction of flexible hoses are such that they can effectively transmit fluids at high pressures, and as long as the internal diameter matches that of the metal tubing, the fundamental flow aspects remain consistent. Therefore, the notion of equivalent flow characteristics holds true in this context.