180 degree elbow is like 45 or 90 degree elbow,but the flow direction change is 180 degree.It looks like the flow fluid get back to the same direction from the joint. The shape is like two 90 degree elbows welded together.It is also called “U bend” or “return bend”.
It could be the long radius or short radius, both are used a lot in the industry application .
Standard: ASME/ANSI B16.28,B16.9, MSS-SP-75, DIN 2605, EN 10253-2 , JIS B2311,GOST 17375,ISO3419
Material: ASTM A234,ASTM A860, ASTM 403,DIN 17175, EN10228 …Carbon steel,stainless steel,alloy steel.
Size: 1/2″-96″. DN15-DN2400
Connect method: Butt welding