90 Degree Elbow

A 90 degree elbow is a pipe fitting in plumbing and piping systems. It is intended to shift the flow direction in a piping system by 90 degrees. This fitting is typically used to connect pipes of different sizes or to go around obstacles in a piping system’s layout while preserving a straight angle. The 90-degree elbow is typically made from materials such as stainless steel, carbon steel, alloy steel, or PVC, depending on the application and the fluid being transported. Stainless steel elbows are commonly used in industries that require high corrosion resistance, such as food processing or pharmaceuticals, while carbon steel elbows are preferred for general-purpose applications.

These elbows come in two main types: short radius (SR) and long radius (LR). The short-radius elbow has a smaller curvature, which results in a tighter bend, while the long-radius elbow has a larger curvature, allowing for a smoother flow of fluids and reduced pressure drops. The choice between these two types depends on factors such as the fluid’s velocity, pressure, and the space available for installation.

The size of a 90-degree elbow is typically specified by its nominal pipe size (NPS) and the wall thickness of the pipe. It is important to ensure compatibility with the existing piping system to prevent leaks or pressure loss. Additionally, these elbows are available in different connection types, such as threaded, butt-weld, and socket-weld, providing installation flexibility.