Long Radius Elbow（LR Elbow）
The Long radius elbow means the bending radius of elbow is 1.5 times to the diameter of the elbow . 1.5D long radius elbows are the most popular elbows in the projects. Usually the LR elbows degree is 45°, 90°and 180°.
Standard: ASME/ANSI B16.9, MSS-SP-75, DIN 2605, EN 10253-2 , JIS B2311
Material: ASTM A234, ASTM 403,DIN 17175, EN10228 …Carbon steel, stainless steel , alloy steel.
Size: 1/2″-96″. DN15-DN2400
Connect method: Butt welding.
A pipe elbow is one kind of pipe fittings which can change the liquid or gas flowing direction in a piping system. It is mainly used to connect two pipes,sometimes called a “quarter bend”.