A slip-on flange is a type of pipe flange that is designed to slide over the end of a pipe and then be welded in place, both inside and outside, to provide a secure and leak-proof connection. It is typically used in low-pressure and non-critical applications due to its ease of installation and cost-effectiveness. Slip-on flanges have a low hub and are bored slightly larger than the outer diameter of the pipe, which allows them to easily slip over the pipe before welding. They are available in a wide range of sizes and pressure ratings, and are commonly manufactured from materials such as carbon steel, stainless steel, and alloy steel. These flanges conform to international standards like ASME, API, and DIN, ensuring compatibility with global piping systems. Slip-on flanges are widely used in industries such as water supply, chemical processing, oil and gas, and HVAC systems for their simplicity, durability, and moderate strength under pressure.