180 degree Long Radius Elbow

Bangdong are Manufacturer of 180 degree Long Radius Elbow. The 180 degree Long Radius Elbow manufactured using superior grade raw materials.

The 180 degree Long Radius Elbows are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries, paper, cement & ship builders.

We have adopted advanced production equipment to make our 180 degree Long Radius Elbow(1D D711.2~D1219.2), which can not only improve product quality, but also save raw materials.

Asme B16.9 Butt weld 180 degree Long Radius Elbow Dimensions

NPS	O.D. D	180° Long Radius
		Center to Center O	Back to Face K
1/2	21.3	76	48
3/4	26.7	76	51
1	33.4	76	56
1¼	42.2	95	70
1½	48.3	114	83
2	60.3	152	106
2½	73	190	132
3	88.9	229	159
3½	101.6	267	184
4	114.3	305	210
5	141.3	381	262
6	168.3	457	313
8	219.1	610	414
10	273	762	518
12	323.8	914	619
14	355.6	1067	711
16	406.4	1219	813
18	457	1372	914
20	508	1524	1016
22	559	1676	1118
24	610	1829	1219

ASME B16.9 180° Long Radius Elbow Dimensional Tolerance

For all fittings				180° Returns
Nominal Pipe Size (NPS)	Outside Ø  at Bevel	Inside Ø at End	Wall Thickness  t / t1	Center to Center Dim. O	Back to Face Dim. K	Align- ment of Ends U
1/2 a 2 1/2	1	0,8	Not	7	7	1
3 a 3 1/2	1	1,6	less	7	7	1
4	+2 -1	1,6	than	7	7	1
5 a 6	+3 -1	1,6	87,50%	7	7	1
8	2	1,6	of nominal	7	7	1
10	+4 -3	3,2	thickness	7	7	2
12 a 18	+4 -3	3,2		10	7	2
20 a 24	+6 -5	4,8		10	7	2
26 a 30	+7 -5	4,8		.....	.....	.....
32 a 48	+7 -5	4,8		.....	.....	.....



An elbow is a Pipe Fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 180° or 90° angle, though 45° elbows are also made. The ends may be machined for butt welding (BW) or socketed welding(SW) etc.

Most elbows are available in short radius or long radius variants. When the two ends differ in size, the fitting is called a Reducing Elbow or reducer elbow.

Elbows are categorized based on various design features as below:

• Long Radius (LR) Elbow is also called   LR Elbow – means the radius is 1.5 times the pipe diameter
  • L/R 45°Elbow: Long radius 45 degree elbow changes the direction by 45 degrees.
  • L/R 90°Elbow: Long radius 90 degree elbow changes the direction by 90 degrees.
  • L/R 180°Elbow: Long Radius 180 degree return bend allows complete reversal of flow.
• Short Radius (SR) Elbow is also called Sr Elbow , – means the radius is 1.0 times the pipe diameter
  • Short radiu 45°Elbow: Short radius 45° elbow changes the direction by 45 degrees.
  • Short radius 90°Elbow: Short Radius 90° elbow is same as LR90 except for the measurement between end of elbow to center line is 1 x NPS.
  • Short radius 180° Elbow: Short Radius 180° return bend allows complete reversal of flow

Size range:

• Seamless elbow: 1/2"-24" DN15-DN600
  
• Welding elbow: 6"-72" DN150-DN1800
• Wall thickness: Sch5-Sch160 XXS
• External arc length of elbow

Recommended type of pipe elbows:

• Large Diameter Elbow
  
• carbon Steel Reducing Elbow

• Small size elbow
• Socket Elbow, Socket Weld Pipe Fitting

• Forged  Elbow, Elbow Fittings
• Galvanized Steel Radius Elbows
  
• Stainless Steel Threaded Fittings Elbow

Materials

• Carbon steel: ASTM/ASME A234 WPB -WPC
  
• Alloy Steel : --WP 22-WP 5-WP 91-WP 911
  • ASTM A335 P22
  • ASME SA335 P91 elbow
  • Astm A234 WP 11
• Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6
  
• High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70
• Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
  • ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
    
  • ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Product Categories : Butt Weld Pipe Fitting > Pipe Elbow/Bend