Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element slides into the flow stream to provide shut-off. They are one of the most common ...

Since that valve is just as old, test it to make sure it closes all the way and reopens again.Mineral deposits and tiny ...

Vacuum valves are used to control gas flow into a chamber, isolate, vent, provide relief or control conductance. Gate, inline and angle valves are the most common types of vacuum valves for high ...