A 90-degree elbow is a type of pipe fitting that plays a crucial role in various piping systems. Its primary function is to change the direction of fluid flow by 90 degrees.
A 90-degree elbow is a type of pipe fitting used to change the direction of flow in a piping system by 90 degrees. It is one of the most common types of elbows and is widely used in plumbing, HVAC, industrial, and mechanical systems.
The 90-degree elbow allows pipes to make a right-angle turn, which is often necessary to navigate around obstacles, follow building layouts, or optimize space in a system.which is also referred to as a “quarter bend,” is a pipe fitting used to shift direction
Threaded 90-Degree Elbow:
Has threaded ends for screwing onto pipes.
Commonly used in low-pressure systems like plumbing.
Socket Weld 90-Degree Elbow:
Pipes are inserted into the fitting and welded for a strong connection.
Used in high-pressure systems.
Butt Weld 90-Degree Elbow:
Pipes and fittings are welded together end-to-end.
Ideal for high-pressure and high-temperature applications.
Flanged 90-Degree Elbow:
Has flanged ends for bolted connections.
Used in systems requiring frequent disassembly.
Long Radius (LR) 90-Degree Elbow:
The centerline radius is 1.5 times the pipe diameter.
Provides smoother flow and less pressure drop.
Short Radius (SR) 90-Degree Elbow:
The centerline radius is equal to the pipe diameter.
Suitable for tight spaces but may cause higher turbulence.
1. Application:Choose the material and type based on the fluid, pressure, and temperature requirements.
2. Space Constraints:Use short-radius elbows for tight spaces and long-radius elbows for smoother flow.
3. Connection Type:Select threaded, welded, or flanged connections based on the system design.
4. Standards:Ensure the elbow complies with relevant standards (e.g., ASME B16.9, ASTM, ANSI).
1. HVAC Systems:Connects ducts and pipes in heating, ventilation, and air conditioning systems.
2. Industrial Piping:Used in oil and gas, chemical, and power plants to change the direction of fluid flow.
3. Fire Protection Systems:Connects pipes in sprinkler systems and hydrants.
4. Marine and Shipbuilding:Used in piping systems on ships and offshore platforms.
5. Food and Beverage Industry:Stainless steel elbows are used in hygienic systems for processing and transporting liquids.