A throttle body is an electronically or mechanically controlled butterfly valve that controls the amount of air entering the ...
A butterfly valve has a hollow stem conducting outside air ... implying an Xfz factor of 0.36. The valve body, having a tortuous flow path, may have an FL of 0.9, making the overall FL = 0.82. Here ...
To help build out a working filtration system, [Fab] needed some valves, so set about printing some of his own. [Fab] went with a simple butterfly valve design, similar to the throttle valve in ...