A BI elbow, or black iron elbow, is a type of pipe fitting used to change the direction of flow in a piping system. These elbows are typically made from black iron, a material known for its durability and resistance to corrosion. They come in various angles, such as 45 degrees or 90 degrees, to suit different piping configurations. BI elbows are commonly used in plumbing, heating, and gas systems due to their strength and reliability.
1-1/2 inch, 2inch,2-1/2 inch ,3inch,4inch