We are globally well renowned as the Best Quality Buttweld Fittings manufacturer in India. We cater an ample assortment of Buttweld Fittings which is incorporated using high technology machines. Our Buttweld Fittings are demanded by all due to their less maintenance, high tensile strength and excellent finish. High reliability and durability are the salient features of our Buttweld Fittings. We stand in the midst of predominant Buttweld Fittings suppliers in India. We deliver our Buttweld Fittings at very competitive prices and within the specified time.

Standards:	ANSI - B 16.9 ASTM A403 - ASME SA403 - 'Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings' API 590-605 ASME B16.9 - 'Factory-Made Wrought Buttwelding Fittings'' ASME B16.25 - 'Buttwelding Ends' ASME B16.28 - 'Wrought Steel Buttwelding Short Radius Elbows and Returns' MSS SP-43 - 'Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications'
Schedule:	Sch 5 TO Sch XXS.
Sizes:	Diameters - from 21,3 to 711 mm. Wall Thickness - from 2 to 40 mm.
Materials:	Monel, Nickel, Inconel, Hastalloy, Titanium, Tantalum, Stainless Steel, Alloy Steel, Carbon Steel, Cupro-Nickel 90/10 & 70/30 Stainless Steel ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L,  316/316L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Type:	Butt Weld (BW)
Thickness:	Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.
Dimension:	ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313

 

Dimensions

Dimensions Butt Weld Elbows 180° LR & SR ASME B16.9

NPS	O.D. D	180° Long Radius		180° Short Radius
		Center to Center O	Back to Face K	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	51	41
1¼	42.2	95	70	64	52
1½	48.3	114	83	76	62
2	60.3	152	106	102	81
2½	73	190	132	127	100
3	88.9	229	159	152	121
3½	101.6	267	184	178	140
NPS	O.D. D	180° Long Radius		180° Short Radius
		Center to Center O	Back to Face K	Center to Center O	Back to Face K
NPS	O.D. D	180° Long Radius		180° Short Radius
		Center to Center O	Back to Face K	Center to Center O	Back to Face K
4	114.3	305	210	203	159
5	141.3	381	262	254	197
6	168.3	457	313	305	237
8	219.1	610	414	406	313
10	273	762	518	508	391
12	323.8	914	619	610	467
14	355.6	1067	711	711	533
16	406.4	1219	813	813	610
18	457	1372	914	914	686
20	508	1524	1016	1016	762
22	559	1676	1118	1118	838
24	610	1829	1219	1219	914
NPS	O.D. D	180° Long Radius		180° Short Radius
		Center to Center O	Back to Face K	Center to Center O	Back to Face K

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.

Dimensional Tolerances of Butt Weld Elbows 180° LR and SR ASME B16.9

Nominal Pipe Size	1/2 to 2½	3 to 3½	4	5 to 8	10 to 18	20 to 24
Outside Diameter at Bevel (D)	+ 1.6 - 0.8	1.6	1.6	+ 2.4 - 1.6	+ 4 - 3.2	+ 6.4 - 4.8
Inside Diameter at End	0.8	1.6	1.6	1.6	3.2	4.8
Center to Center (O)	6	6	6	6	10	10
Back to Face (K)	6	6	6	6	6	6
Wall Thickness (t)	Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.

ELBOWS - Ansi 16.9 tolerances

DIMENSIONAL TOLERANCES - ELBOWS
For all fittings				Elbows 90/45 deg	180° Returns
Nominal Pipe Size (NPS)	Outside Ø at Bevel	Inside Ø at End	Wall Thickness t / t1	Center to End Dim. A-B-C-M	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	2	7	7	1
3 a 3 1/2	1	1,6	less	2	7	7	1
4	+2 -1	1,6	than	2	7	7	1
5 a 6	+3 -1	1,6	87,50%	2	7	7	1
8	2	1,6	of nominal	2	7	7	1
10	+4 -3	3,2	tickness	2	7	7	2
12 a 18	+4 -3	3,2		3	10	7	2
20 a 24	+6 -5	4,8		3	10	7	2
26 a 30	+7 -5	4,8		3	.....	.....	.....
32 a 48	+7 -5	4,8		5	.....	.....	.....

Angularity Tolerances
ND	Max off angle	Max off plane
	Q	P
1/2 a 4	1	2
5 a 8	2	4
10 a 12	3	5
14 a 16	3	7
18 a 24	4	10
26 a 30	5	10
32 a 42	5	13
44 a 48	5	20

 

ELBOWS - End welding bevels