Noncompensated flow controls are simple valves that meter flow by restricting or throttling. ... a needle valve is paired with a check valve that offers resistance to flow in one direction only.

Figure 3. Typical inherent control valve flow characteristics. Figure 4. Installed control valve characteristic for a 0.5 vpdd. The three control valve characteristics are: Linear; Modified parabolic; ...

Flaps perform essential jobs. From pumping hearts to revving engines, flaps help fluid flow in one direction. Without them, keeping liquids going in the right direction is challenging to do ...

"You don't get to beat Tesla every day." Now, one-way pipes have been attempted before. More than 100 years ago, Nikola Tesla patented the Tesla valve, a one-way fluid flow device with no moving ...