schedule 40 pipe

Schedule 40 pipe refers to a specific type of pipe used in plumbing and other applications. It is commonly made of steel and has a standardized wall thickness designated as “schedule 40.” The term “schedule” in this context indicates the pipe’s wall thickness, with higher numbers representing thicker walls.

Schedule 40 pipe is known for its durability and strength, making it suitable for various uses, including water distribution, drainage systems, and general piping applications. It is widely available in different sizes and can be joined using various methods such as welding, threading, or using mechanical connectors.

The dimensions of schedule 40 pipe are determined by industry standards, ensuring compatibility and interchangeability between different manufacturers. These pipes typically have a smooth interior surface, allowing for efficient fluid flow while minimizing pressure loss.

Specification

1. Material: Schedule 40 pipe is typically made from steel, although it can also be made from other materials like PVC (polyvinyl chloride).
2. Dimensions: The dimensions of Schedule 40 pipe are based on nominal pipe size (NPS), which refers to the approximate inside diameter of the pipe. Common NPS sizes for 40 pipe range from 1/8 inch to 24 inches.
3. Wall Thickness: Schedule pipe has a standard wall thickness designated by a schedule number. The schedule number represents the thickness of the pipe wall, with higher numbers indicating thicker walls. For Schedule  pipe, the wall thickness varies depending on the NPS size, ranging from 0.068 inches (1.73 mm) for smaller sizes to 0.406 inches (10.31 mm) for larger sizes.
4. Pressure Rating:  40 pipe is designed to withstand a certain amount of pressure. The pressure rating depends on the material and temperature of the fluid being transported through the pipe. For steel Schedule 40 pipe, the pressure rating is typically around 150 psi (pounds per square inch).

It’s worth noting that schedule 40 pipe is distinct from other schedules like schedule 10 or schedule 80, which have different wall thicknesses. The choice of schedule depends on the specific requirements of the application, considering factors such as pressure, temperature, and the type of fluid being transported.