A slip-on flange is a type of flange that is designed to slip over the end of a pipe. It is generally used in low-pressure applications due to its ease of installation. The flange is welded on both the inside and outside to secure it to the pipe, allowing for a strong connection that can handle both axial and radial loads.

Slip-on flanges offer several advantages, including ease of installation, as they do not require precise alignment. They are cost-effective and can be used in various applications. Additionally, their ability to accommodate slight variations in pipe lengths makes them ideal for many piping systems.

Slip-on flanges can be made from a variety of materials, including carbon steel, stainless steel, and alloy steel. The choice of material often depends on the application's requirements, such as temperature, pressure, and corrosion resistance.

Slip-on flanges are commonly used in low-pressure piping systems, water treatment plants, and HVAC systems. They are also found in chemical processing and oil and gas industries, where ease of installation and cost-effectiveness are essential.