Maximum Allowable Working Pressure Calculator

About Maximum Allowable Working Pressure Calculator (Formula)

The Maximum Allowable Working Pressure (MAWP) Calculator is a tool designed to calculate the maximum pressure at which a vessel or system can safely operate. It takes into account various factors such as yield strength, design factor, joint factor, temperature factor, thickness, and diameter.

The formula used to calculate the Maximum Allowable Working Pressure is:

MAWP = 2 * Y * Fd * Fj * Ft * t / d

Where:

• MAWP represents the Maximum Allowable Working Pressure
• Y denotes the yield strength (measured in psi)
• Fd represents the design factor
• Fj denotes the joint factor
• Ft represents the temperature factor
• t represents the thickness of the vessel or pipe (measured in inches)
• d denotes the diameter of the vessel or pipe (measured in inches)

To calculate the MAWP, we multiply the yield strength by the design factor, joint factor, temperature factor, and thickness. Then, we divide the result by the diameter multiplied by 2.

By using this calculator, you can input the values for yield strength, design factor, joint factor, temperature factor, thickness, and diameter. Upon clicking the “Calculate” button, the calculator applies the formula and displays the result, providing the maximum allowable working pressure in psi.

It is important to note that the MAWP represents the pressure at which the system can safely operate. Exceeding this pressure may result in structural failure or other safety risks. Therefore, it is crucial to adhere to industry standards and guidelines when determining the maximum allowable working pressure for a given vessel or system.