Valve Performance Parameters
Valves are essential components used in the process industry and must function within various operating conditions, depending on the particular application in which it is used. To ensure optimal performance and safe operation, it is essential that valves are designed and manufactured with the correct parameters in order to handle the pressure, temperature, and flow requirements of the desired application.
In order to select and design the correct valve for an application, engineers must consider the pressure, temperature, and flow ratings of the product.
Pressure: Valves are designed to handle particular pressure ranges and, as such, must be designed and selected correctly in order to handle the required pressure. If a valve is selected for an application with an operating pressure higher than its ratings, it is at risk of failure. Safety is of the utmost importance, particularly in process and refining industries where valves are exposed to significant pressure, and are therefore subject to rigorous testing prior to installation.
Temperature: When selecting a valve, it is also necessary to consider the maximum temperature of the medium that the valve must handle. Depending on the type of valve, a maximum temperature rating of up to 800°F may be available, but may be subject to further safety and testing protocols. In addition, certain valves may be subjected to thermal expansion in extreme temperature applications, and must be designed and selected carefully in order to ensure correct operation.
Flow: The purpose of a valve is to control the flow of media within a piping system, and so the flow rating must be considered to ensure that the valve is able to handle the intended flow rate and pressure. If a valve is not capable of handling the fluid flow and pressure required, it is at risk of failure and reduced performance. Manufacturers usually provide flow ratings for different valve types and sizes, but these can vary between manufacturers.
When selecting a valve, engineers must ensure that the correct parameters are evaluated and selected for the specific application. This includes proper consideration for the pressure, temperature, and flow ratings that the valve requirement. Additionally, it is essential that the valve is classified correctly, tested, and certified prior to installation, in order to ensure optimal performance and safe operation. By ensuring that the valve is selected and designed correctly for the intended application, engineers can ensure that the valve can perform up to the standards required for the application.
