For gas, water, air, and industrial fluid systems, the rated pressure of a Schedule 40 pipe is one of the most important factors when selecting piping. This article will introduce the pressures that a Schedule 40 pipe can withstand, the factors that determine its rated pressure, and how the pressure varies with size and operating conditions.What determines the rated pressure of a Schedule 40 pipe?The rated pressure of a Schedule 40 pipe is not a fixed value; it depends on fou...