Product Description A 90 degree elbow is a pipe fitting that is used to change the direction of a pipe by 90 degrees. It is a common fitting that is used in a variety of applications, including plumbing, HVAC, and industrial piping. Technical Specifications The technical specifications of a 90 degree elbow vary depending on the material, size, and type of fitting. However, some of the common specifications include: Material: Steel, brass, copper, plastic, etc. Size: 1/2 inch to 12 inches (nominal pipe size) Type: Butt-weld, threaded, socket-weld, flanged, etc. Radius: Short radius (SR) or long radius (LR) Wall thickness: Schedule 40, Schedule 80, etc. Applications 90 degree elbows are used in a variety of applications, including: Plumbing: Changing the direction of a water pipe HVAC: Changing the direction of an air duct Industrial piping: Changing the direction of a fluid line Machinery: Connecting pipes to valves and other components Construction: Connecting pipes to sprinkler systems and other fixtures Benefits The use of 90 degree elbows in piping systems offers a number of benefits, including: Increased flexibility: Elbows allow pipes to be routed around obstacles and through tight spaces. Reduced stress: Elbows help to reduce stress on pipes by distributing the load more evenly. Improved flow: Elbows can help to improve the flow of fluids by reducing turbulence. Increased safety: Elbows can help to prevent leaks and spills by providing a smooth transition between pipes.