Basic valve pdf

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Introduction to valves

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• Valves are the components in a fluid flow or pressure system that regulates: 

1. either the flow
2. or the pressure of the fluid.

This duty may involve: 

• stopping and starting flow, 

• controlling flow rate, 

• diverting flow, 

• preventing back flow, Controlling pressure, or relieving pressure.

What Is A Valve?

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A valve is a mechanical device that controls:

• the flow of fluid 

• and pressure 

Within: 

• a system 

• or process.

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