The Air/Vacuum Valve automatically exhausts large volumes of air from the system while it is being filled with the slurry. When the contamination is being emptied, air displaces the fluid and re ...

Air can enter water pipelines in several ways, often from dissolved air coming out of solution due to pressure fluctuations, ...

As an example, consider a double-acting cylinder with a 25-mm bore and 100-mm stroke. Rod diameter is 10 mm, air pressure is 6 bar, and pressure drop across the valve is 0.25 bar.

Air/Vacuum Valves. These valves have two functions: To open to admit large amounts of air when vacuums form during pipe draining, and to expel large amounts of air when the pipe is being filled.

Atmospheric vacuum breakers. The purpose of a vacuum breaker is to stop back siphonage. The atmospheric vacuum breaker consists of a check valve member and an air vent that is normally closed when the ...

Air leaking into your car—not out of it—can be a problem. Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum leaks.