What are the main functions of valves?

The most basic function of a valve is to regulate the flow of fluids such as water within the piping system. Each valve type has a its own defining work mechanism that sets it apart from other valves. Generally, the common functions among valves include:

• Start or stop the flow based on the condition of the valve
• Control the direction of flow within the pipes
• Adjust the flow rate and pressure within piping system
• Throttle flow rates within the pipes
• Relieve pressure and vacuum within the piping system