Manufacturers of Weld Neck Flanges

Manufacturers of Weld Neck flanges in india & asia we offers a range of Weld Neck Flanges. As the name implies, it is called as a neck part of the flange which is being welded to the last points of the piping system. Weld Neck Flanges has a wide-ranging tapering focal point and are commonly used for high pressure applications. In fact, it is being designed to shift the pressure within the pipe, in a way to dip the high pressure concentration towards the bottom of the flange. Weld Neck Flanges are also quite known from other forms by their wide-ranging pointed centre and modest development of thickness in the butt weld area, by joining them with the pipe

RANGE :

½” (15 NB) to 60” (1500NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75

SIZE :

½” (15NB) to 60” (1500NB)

CLASS / PRESSURE :

Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500# PN6, PN10, PN16, PN25, PN40, PN64

DIMENSION :

B16.5, BS4504, EN-1092, B16.36, B16.47, B16.48, MSS SP44

STD :

STD : ANSI Flanges, ASME Flanges, DIN Flanges, EN Flanges, BS Flanges, API, JIS, NACE etc.

FEATURES :

Dimensional accuracy, Corrosion resistance, High efficiency, Excellent finish, Durable

Stainless Steel Weld Neck Flanges :

Standard : ASTM / ASME A/SA 182
Grade : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L

Duplex Steel Weld Neck Flanges :

Manufacturers of Duplex stainless steel Weld Neck flanges in india & asia at best price

Standard : ASTM / ASME A/SA 182
Grade : F 44, F 45, F51, F 53, F 55, F 60, F 61

Aluminium Weld Neck Flanges :

Standard : ASTM B247, B361.
Grade : 2024, 6061, 6063, 6101, 7075.

Titanium Weld Neck Flanges :

Standard : ASTM B381.
Grade : Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23

Carbon Steel Weld Neck Flanges :

Standard : ASTM A 105/A694/ A350 LF3/A350 LF2.
Grade : F42/46/52/56/60/65/70

Low Temperature Carbon Steel Weld Neck Flanges :

Standard : ASTM A 350 LF2 / A350 LF3

Alloy Steel Weld Neck Flanges :

Standard : ASTM A182
Grade : F1/F5/F9/F11/F22/F91

Copper Alloy Weld Neck Flanges :

Standard : ASTM / ASME SB 61 / 62 / 151 / 152.
Grade : UNS NO. C 70600 (CU -NI- 90/10), C 71500 (CU -NI- 70/30) C 71640

Nickel Alloy Weld Neck Flanges :

Manufacturers, supplier & stockist of high nickel Weld Neck flanges in india & asia at best price in ready stock

Standard : ASTM / ASME SB 564 / 160 / 472
• Nickel 200 – UNS N02200   • Nickel 201 – UNS N02201   • Monel 400 – UNS N04400
• Monel K500 – UNS N05500   • Inconel K600 – UNS N06600   • Inconel 601 – UNS N06601
• Inconel 625 – UNS N06625   • Inconel 800 – UNS N08800   • Inconel 800H – UNS N08810
• Inconel 825 – UNS N08825   • Hastelloy C276 – UNS N10276   • Alloy 20 – UNS N08020

Advantages of Weld Neck Flanges

Suitable for high pressure and high heat applications:
Some of the flange materials such as stainless steel are highly resistant to heat. The extreme pressure that is developed in piping applications throughout the industry calls for high-pressure resistance. A welded flange is stronger that a bolt-on flange. The bolt-on flange sometimes calls for a gasket that could cause leaks.

Reduced friction and interference:
The welded connection will not interfere with the flow of the fluid. With the reduced friction, the fluid will not develop turbulence allowing for less vibration and a smoother flow. Less turbulence will also allow for a quieter operation.

Easier Alignment:
The neck of the flange will allow for a more accurate easier alignment to the pipe saving time. The alignment is also much more precise with less tolerance.

Testing of the pipe and joints are easier:
Radiography test can be much easier to perform because of the easy access the flanges allow.

Durable connection:
Stress on the inside is transferred to the neck of the flange taking the pressure off the pipe allowing for a more permanent connection.

Leakage prevention:
In most applications using the weld neck flanges, the weld is made inside and outside of the flange. This will provide a connection that is more leak proof.

Ease of installation:
When using the butt flanges it is easier to determine pipe length applications because the calculations do not have to account for the space taken up by threads on bolt-on applications. Slip-on flanges also require calculation using the insertion amount.

ANSI B16.5 Weld Neck Flanges, ASME B.16.5 Weld Neck Pipe Flanges, DIN Weld Neck Flange

Manufacturers, supplier & stockist of high nickel ANSI B16.5 Weld Neck Flanges, ASME B.16.5 Weld Neck Pipe Flanges, DIN Weld Neck Flange at best price in ready stock We are specialized in manufacturing high standard quality of Slip-on flanges. Weld Neck Flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding. We are one of the leading manufacturer and supplier of steel WNRF Weld Neck flanges in India, we can supply stainless steel, carbon steel and nickel alloy WNRF Weld Neck flanges.

WNRF Weld Neck flanges, steel WNRF Weld Neck flanges are available with following specifications:

We proffer slip-on pipe flanges that are being manufactured at our best services to companies in a range of industries including power generation, shipbuilding, petrochemical plants, waste water treatment plants, oil refineries, paper mills, turnkey projects and pharmaceutical plants among others.

Specification

Standards: ANSI B16.47 Series A & B, ANSI B16.5, API-605, MSS SP44, ASA, EN1092, BS 4504, DIN

Type: Weld Neck Flanges / WNRF

Size: ½” (15 NB) to 48″ (1200NB)

Class : 150 Class, 300 Class, 400 Class, 600 Class, 900 Class, 1500 Class, 2500 Class, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Material: Stainless Steel, Duplex, Super Duplex, Nickel Alloys, Alloy Steel, Carbon Steel, Low temperature Steel

Material Grade:

Stainless Steel Weld Neck Flanges: ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel Weld Neck Flanges: ASTM A182 / ASME SA182, F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel Weld Neck Flanges: ASTM A105 / ASME SA105, ASTM A350 / ASME SA350, ASTM A181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70

Low Temperature Carbon Steel Weld Neck Flange (LTCS WNRF): Flange, A350 LF2/A350 LF3

Alloy Steel Weld Neck Flanges: ASTM A182 / ASME SA182 & A387 F1, F5, F9, F11, F12, F22, F91

Nickel Alloy Weld Neck Flanges: ASTM / ASME SB 564 / 160 / 472, UNS 2200 ( Nickel 200 ), UNS 2201 (Nickel 201 ), UNS 4400 (Monel 400 ), UNS 8020 ( Alloy 20 / 20 CB 3, UNS 8825 Inconel (825), UNS 6600 (Inconel 600 ), UNS 6601 ( Inconel 601 ), UNS 6625 (Inconel 625), UNS 10276 ( Hastelloy C 276 )

class d Weld Neck Flange dimensions

Dimensions in Inches

Nom. size	Outside Ø (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Ø of Holes	Ø Bolt Circle (BC)	Thickness (T)		Weight (lbs)
Nom. size	Outside Ø (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Ø of Holes	Ø Bolt Circle (BC)	Slip-on	Blind	Slip-on	Blind
2	6.00	2.44	4	0.750	4.75	0.625	0.625	3.90	4.7
2.5	7.00	2.94	4	0.750	5.50	0.625	0.625	5.30	6.5
3	7.50	3.57	4	0.750	6.00	0.625	0.625	5.70	7.5
4	9.00	4.57	8	0.750	7.50	0.625	0.625	7.70	10.6
5	10.00	5.66	8	0.875	8.50	0.625	0.650	8.80	13.6
6	11.00	6.72	8	0.875	9.50	0.688	0.693	10.70	17.7
8	13.50	8.72	8	0.875	11.75	0.688	0.812	15.30	31.8
10	16.00	10.88	12	1.000	14.25	0.688	0.953	19.20	51.7
12	19.00	12.88	12	1.000	17.00	0.812	1.117	33.10	86.7
14	21.00	14.19	12	1.125	18.75	0.938	1.133	46.90	107.4
16	23.50	16.19	16	1.125	21.25	1.000	1.265	60.10	149.8
18	25.00	18.19	16	1.250	22.75	1.062	1.331	63.60	177.7
20	27.50	20.19	20	1.250	25.00	1.125	1.448	79.40	233.6
22	29.50	22.19	20	1.375	27.25	1.188	1.568	89.90	290.5
24	32.00	24.19	20	1.375	29.50	1.250	1.661	113.40	364.5
26	34.25	26.25	24	1.375	31.75	1.312	1.786	128.00	448.2
28	36.50	28.25	28	1.375	34.00	1.312	1.906	140.50	542.6
30	38.75	30.25	28	1.375	36.00	1.375	2.008	163.30	647.3
32	41.75	32.25	28	1.625	38.50	1.500	2.150	210.10	798.6
34	43.75	34.25	32	1.625	40.50	1.500	2.252	219.10	916.9
36	46.00	36.25	32	1.625	42.75	1.625	2.370	259.40	1071.4
38	48.75	38.25	32	1.625	45.25	1.625	2.506	299.80	1278.2
40	50.75	40.25	36	1.625	47.25	1.625	2.609	311.10	1440.1
42	53.00	42.25	36	1.625	49.50	1.750	2.729	361.70	1648.1
44	55.25	44.25	40	1.625	51.75	1.750	2.849	385.00	1868.3
48	59.50	48.25	44	1.625	56.00	1.875	3.072	457.30	2340.7
54	66.25	54.25	44	1.875	62.75	2.125	3.435	610.60	3236.7
60	73.00	60.25	52	1.875	69.25	2.250	3.779	759.10	4327.6
66	80.00	66.25	52	1.875	76.00	2.500	4.136	1017.00	5722.2
72	86.50	72.25	60	1.875	82.50	2.625	4.480	1198.20	7249.0
78	93.00	78.25	64	2.125	89.00	2.750	–	1368.90	–
84	99.75	84.25	64	2.125	95.50	2.875	–	1639.70	–
90	106.50	90.25	68	2.438	102.00	3.000	–	1878.30	–
96	113.25	96.25	68	2.438	108.50	3.250	–	2298.30	–
102	120.00	102.25	72	2.688	114.50	3.250	–	2494.20	–
108	126.75	108.25	72	2.688	120.75	3.375	–	2892.50	–
120	140.25	120.25	76	2.938	132.75	3.500	–	3568.50	–
132	153.75	132.25	80	3.188	145.75	3.875	–	4628.60	–
144	167.25	144.25	84	3.438	158.25	4.125	–	5698.20	–

class e Weld Neck Flange dimensions

Dimensions in Inches

Nom. size	Outside Ø (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Ø of Holes	Ø Bolt Circle (BC)	Thickness (T)		Weight (lbs)
Nom. size	Outside Ø (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Ø of Holes	Ø Bolt Circle (BC)	Slip-on	Blind	Slip-on	Blind
4	9.00	4.57	8	0.750	7.50	1.125	1.125	13.90	19.2
5	10.00	5.66	8	0.875	8.50	1.188	1.188	16.30	24.8
6	11.00	6.72	8	0.875	9.50	1.313	1.313	20.40	33.6
8	13.50	8.72	8	0.875	11.75	1.500	1.500	33.40	60.8
10	16.00	10.88	12	1.000	14.25	1.563	1.563	43.70	84.9
12	19.00	12.88	12	1.000	17.00	1.750	1.750	71.30	135.9
14	21.00	14.19	12	1.125	18.75	1.875	1.875	93.70	177.7
16	23.50	16.19	16	1.125	21.25	2.000	2.000	120.10	236.8
18	25.00	18.19	16	1.250	22.75	2.125	2.125	127.30	283.7
20	27.50	20.19	20	1.250	25.00	2.375	2.375	167.70	383.2
24	32.00	24.19	20	1.375	29.50	2.625	2.625	234.30	576.1
26	34.25	*	24	1.375	31.75	2.750	2.750	*	690.1
28	36.50	*	28	1.375	34.00	2.750	2.750	*	782.9
30	38.75	*	28	1.375	36.00	2.875	2.875	*	926.8
36	46.00	*	32	1.625	42.75	3.125	3.209	*	1450.7
38	48.75	*	32	1.625	45.25	3.125	3.394	*	1731.1
40	50.75	*	36	1.625	47.25	3.250	3.533	*	1950.2
42	53.00	*	36	1.625	49.50	3.375	3.695	*	2231.5
44	55.25	*	40	1.625	51.75	3.375	3.857	*	2529.4
48	59.50	*	44	1.625	56.00	3.500	4.159	*	3169.0
54	66.25	*	44	1.875	62.75	3.750	4.651	*	4382.5
60	73.00	*	52	1.875	69.25	3.875	5.116	*	5858.7
66	80.00	*	52	1.875	76.00	4.250	5.601	*	7749.0
72	86.50	*	60	1.875	82.50	4.375	6.066	*	9815.3
78	93.00	*	64	2.125	89.00	4.750		*
84	99.75	*	64	2.125	95.50	4.750		*
90	106.50	*	68	2.438	102.00	5.125		*
96	113.25	*	68	2.438	108.50	5.125		*
102	120.00	*	72	2.688	114.50	5.500		*
108	126.75	*	72	2.688	120.75	5.500		*
120	140.25	*	76	2.938	132.75	5.875		*
132	153.75	*	80	3.188	145.75	6.250		*
144	167.25	*	84	3.438	158.25	6.750		*

* The purchaser shall specify the ID of the flange for nominal pipe sizes 26 in. and larger. The diameter of the flange bore shall not exceed the pipe OD by more than .25 in.

en 1092-1 Weld Neck Flange

Weld Neck flanges EN 1092-1 Type 01

Manufacturers, supplier & stockist of Weld Neck flanges EN 1092-1 Type 01 at best price in ready stock Facing Type A, all faces machined, full thickness
Available from stock in material 1.4307 and 1.4571
On request with inspection certificate EN 10204/ 3.1 + AD2000-W2/W9

*) replaces DIN 2576

drawing: Weld Neck flanges EN 1092-1 Type 01

PN 10

DN	Pipe OD	B1	D	C1	K	L	Qtty.	weight
Up to DN 40 see PN40
From DN 50 to DN 150 see PN16!
200	219,1	221,5	340	24	295	22	8	9,27
	206,0**	208,0	340	24	295	22	8	9,27
250	273,0	276,5	395	26	350	22	12	11,80
	256,0**	258,0	395	26	350	22	12	11,80
300	323,9	327,5	445	26	400	22	12	13,60
	306,0***	309,0	445	26	400	22	12	13,60
350	355,6	359,5	505	30	460	22	16	20,40
400	406,4	411,0	565	32	515	26	16	27,50
450	457,0	462,0	615	36	565	26	20	33,60
500	508,0	513,5	670	38	620	26	20	40,20
600	610,0	616,5	780	42	725	30	20	54,50

Weld Neck Flange PN 16

DN	Pipe OD	B1	D	C1	K	L	Qtty.	weight
Up to DN 40 see PN40
50	60,3	61,5	165	20	125	18	4	2,73
	54,0**	55,0	165	20	125	18	4	2,73
65	76,1	77,5	185	20	145	18	8	3,16
	70,0**	71,0	185	20	145	18	8	3,16
80	88,9	90,5	200	20	160	18	8	3,60
	84,0**	85,5	200	20	160	18	8	3,60
100	114,3	116,0	220	22	180	18	8	4,39
	106,0**	107,5	220	22	180	18	8	4,39
125	139,7	141,5	250	22	210	18	8	5,41
	131,0**	132,5	250	22	210	18	8	5,41
150	168,3	170,5	285	24	240	22	8	7,14
	156,0**	157,5	285	24	240	22	8	7,14
200	219,1	221,5	340	26	295	22	12	9,73
250	273,0	276,5	405	29	355	26	12	14,20
300	323,9	327,5	460	32	410	26	12	19,00
350	355,6	359,5	520	35	470	26	16	28,20
400	406,4	411,0	580	38	525	30	16	35,90
450	457,0	462,0	640	42	585	30	20	46,10
500	508,0	513,5	715	46	650	33	20	64,00

Weld Neck Flange PN 25

DN	Pipe OD	B1	D	C1	K	L	Qtty.	weight
Bis DN 150 sind Flansche mit Nenndruck 16 zu verwenden!
200	219,1	221,5	360	32	310	26	12	14,30
250	273,0	276,5	425	35	370	30	12	20,10
300	323,9	327,5	485	38	430	30	16	26,60

Weld Neck Flange PN 40

DN	Pipe OD	B1	D	C1	K	L	Qtty.	weight
10	17,2	18,0	90	14	60	14	4	0,61
15	21,3	22,0	95	14	65	14	4	0,67
20	26,9	27,5	105	16	75	14	4	0,94
25	33,7	34,5	115	16	85	14	4	1,11
32	42,4	43,5	140	18	100	18	4	1,82
40	48,3	49,5	150	18	110	18	4	2,08
	44,5**	45,5	150	18	110	18	4	2,08
50	60,3	61,5	165	20	125	18	4	2,73
65	76,1	77,5	185	22	145	18	8	3,48
80	88,9	90,5	200	24	160	18	8	4,32
100	114,3	116,0	235	26	190	22	8	6,07
125	139,7	141,5	270	28	220	26	8	8,19
150	168,3	170,5	300	30	250	26	8	10,30

** Dimension not included in EN 1092-1

Additional dimensions, pressure rates and materials, as well as different facings on request

flange slip on 10k

Flange – Slip-On Type

JIS B2220 – 10K
Size	d	D	C	No.	h	t	Weight (kg)
Size	d	D	C	No.	h	t	SO	BL
010	17.8	90	65	4	15	12	0.52	0.54
015	22.2	95	70	4	15	12	0.57	0.61
020	27.7	100	75	4	15	14	0.73	0.79
025	34.5	125	90	4	19	14	1.13	1.24
032	43.2	135	100	4	19	16	1.48	1.66
040	49.1	140	105	4	19	16	1.56	1.81
050	61.1	155	120	4	19	16	1.88	2.23
065	77.1	175	140	4	19	18	2.60	3.24
080	90.0	185	150	8	19	18	2.61	3.50
090	102.6	195	160	8	19	18	2.76	4.00
100	115.4	210	175	8	19	18	3.14	4.60
125	141.2	250	210	8	23	20	4.77	7.30
150	166.6	280	240	8	23	22	6.34	10.10
175	192.1	302	265	12	23	22	6.82	11.80
200	218.0	330	290	12	23	22	7.53	14.00
250	269.5	400	355	12	25	24	11.80	22.70
300	321.0	445	400	16	25	24	13.50	29.50
350	358.1	490	445	16	25	26	16.40	37.10
400	409.0	560	510	16	27	28	23.00	52.20
450	460.0	620	565	20	27	30	29.50	68.80
500	511.0	675	620	20	27	30	33.50	82.10
550	562.0	745	680	20	33	32	43.10	105.80
600	613.0	795	730	24	33	32	45.70	120.20
650	664.0	845	780	24	33	34	52.10	145.00
700	715.0	905	840	24	33	34	59.50	167.20
750	766.0	970	900	24	33	36	73.20	204.20
800	817.0	1020	950	28	33	36	76.40	225.20
900	919.0	1120	1050	28	33	38	89.40	288.40
1000	1021.0	1235	1160	28	39	40	109.20	367.70

Available in Carbon Steel and 316L Stainless Steel

ANSI-B16.1 Class 125 Lt Wt Slip-on and Blind Flanges

Pressure Rating at Atmospheric Temp 150 P.S.I.

Nominal Size	Outside Diameter O	Slip-on Bore B	Drilling			Hub Diminsions			Thickness Blind C	Weight (Lbs)
Nominal Size	Outside Diameter O	Slip-on Bore B	No of Holes	Hole Diameter	Circle BC	THICKNESS C	LENGTH Y	DIAMETER X	Thickness Blind C	Slip On	Blind
4	9.00	4.57	8	0.750	7.50	0.500	0.875	5.312	0.625	12	11
5	10.00	5.66	8	0.875	8.50	0.562	1.250	6.312	0.650	13	13
6	11.00	6.72	8	0.875	9.50	0.562	1.250	7.562	0.692	13	18
8	13.50	8.72	8	0.875	11.75	0.562	1.250	9.688	0.812	15	32
10	16.00	10.88	12	1.000	14.25	0.688	1.250	12.000	0.913	26	52
12	19.00	12.88	12	1.000	17.00	0.688	1.250	14.375	1.117	42	86
14	21.00	14.19	12	1.125	18.75	0.750	1.250	15.750	1.133	44	107
16	23.50	16.19	16	1.125	21.25	0.750	1.250	18.000	1.265	55	150
18	25.00	18.19	16	1.250	22.75	0.750	1.250	19.875	1.331	59	177
20	27.50	20.19	20	1.250	25.00	0.750	1.250	22.000	1.448	69	233
22	29.50	22.19	20	1.375	27.25	1.000	1.750	24.250	1.568	81	290
24	32.00	24.19	20	1.375	29.50	1.000	1.750	26.125	1.661	108	364
26	34.25	26.25	24	1.375	31.75	1.000	1.750	28.500	1.786	118	448
28	36.50	28.25	28	1.375	34.00	1.000	1.750	30.500	1.906	129	542
30	38.75	30.25	28	1.375	36.00	1.000	1.750	32.500	2.008	150	646
32	41.75	32.25	28	1.625	38.50	1.125	1.750	34.750	2.150	180	799
34	43.75	34.25	32	1.625	40.50	1.125	1.750	36.750	2.252	189	917
36	46.00	36.25	32	1.625	42.75	1.125	1.750	38.750	2.370	206	1071
38	48.75	38.25	32	1.625	45.25	1.125	1.750	40.750	2.506	235	1278
40	50.75	40.25	36	1.625	47.25	1.125	1.750	43.000	2.609	247	1440
42	53.00	42.25	36	1.625	49.50	1.250	1.750	45.000	2.729	285	1646
44	55.25	44.25	40	1.625	51.75	1.250	2.250	47.000	2.849	331	1868
46	57.25	46.25	40	1.625	53.75	1.250	2.250	49.000	2.952	346	2083
48	59.50	48.25	44	1.625	56.00	1.375	2.500	51.000	3.072	404	2339
50	61.75	50.25	44	1.875	58.25	1.375	2.500	53.000	3.196	418	2602
52	64.00	52.25	44	1.875	60.50	1.375	2.500	55.000	3.315	445	2908
54	66.25	54.25	44	1.875	62.75	1.375	2.500	57.000	3.435	472	3238
60	73.00	60.25	52	1.875	69.25	1.500	2.750	63.000	3.779	600	4328
66	80.00	66.25	52	1.875	76.00	1.500	2.750	69.000	4.136	714	5722
72	86.50	72.25	60	1.875	82.50	1.500	2.750	75.000	4.480	798	7249
78	93.00	78.25	64	2.125	89.00	1.750	3.000	81.250		1004
84	99.75	84.25	64	2.125	95.50	1.750	3.000	87.500		1161
90	106.50	90.25	68	2.375	102.00	2.000	3.250	93.750		1431
96	113.25	96.25	68	2.375	108.50	2.000	3.250	100.000		1620

NOTES:
1. Flanges available overbored, counterbored or with reducing bores per customer specification.
2. Drilling per ANSI/ASME B16.1 125 lb and B16.5 150 lb pattern.
3. Flanges available overdrilled to accommodate insulators.
4. ANSI B16.1 Class 125 Lightweight Flanges are identical to AWWA C207-01 Class D Hub Flanges.

ASME B16.5 Weld-Neck Flanges – 150 lbs, flange Weld Neck 150 rf, Weld Neck Flange class 150, Weld Neck Flange ansi 150

The wide range of ANSI B 150 Class- Weld Neck Flanges offered by us is in conformation with international quality standards. These are designed as per the standards set by various national and international authorities and are manufactured using high grade steel. Our range of flanges is highly acknowledged in the domestic and global markets, due to features such as application specific design and corrosion resistance.

Nominal Size	Outside Diameter of Flange	Diameter Bore	Thickness of Flange	Diameter of Raised Face	Height of Raised Face	Diameter of Hub at Base	Length through Hub	No. of Holes	Diameter of Holes	Diameter of Bolts	Diameter of Bolt Circle
in	in	in	in	in	in	in	in		in	in	in
1/2	3.5	0.88	0.44	1.38	0.0625	1.19	0.62	4	0.62	1/2	2.38
3/4	3.88	1.09	0.5	1.69	0.0625	1.5	0.62	4	0.62	1/2	2.75
1	4.25	1.36	0.56	2.0	0.0625	1.94	0.69	4	0.62	1/2	3.12
1 1/4	4.62	1.70	0.62	2.5	0.0625	2.31	0.81	4	0.62	1/2	3.5
1 1/2	5	1.95	0.69	2.88	0.0625	2.56	0.88	4	0.62	1/2	3.88
2	6	2.44	0.75	3.62	0.0625	3.06	1	4	0.75	5/8	4.75
2 1/2	7	2.94	0.88	4.12	0.0625	3.56	1.12	4	0.75	5/8	5.5
3	7.5	3.57	0.94	5	0.0625	4.25	1.19	4	0.75	5/8	6
3 1/2	8.5	4.07	0.94	5.5	0.0625	4.81	1.25	8	0.75	5/8	7
4	9	4.57	0.94	6.19	0.0625	5.31	1.31	8	0.75	5/8	7.5
5	10	5.66	0.94	7.31	0.0625	6.44	1.44	8	0.88	3/4	8.5
6	11	6.72	1	8.5	0.0625	7.56	1.56	8	0.88	3/4	9.5
8	13.5	8.72	1.12	10.62	0.0625	9.69	1.75	8	0.88	3/4	11.75
10	16	10.88	1.19	12.75	0.0625	12	1.94	12	1	7/8	14.25
12	19	12.88	1.25	15	0.0625	14.38	2.19	12	1	7/8	17
14	21	14.14	1.38	16.25	0.0625	15.75	2.25	12	1.12	1	18.75
16	23.5	16.16	1.44	18.5	0.0625	18	2.5	16	1.12	1	21.25
18	25	18.18	1.56	21	0.0625	19.88	2.69	16	1.25	1 1/8	22.75
20	27.5	20.2	1.69	23	0.0625	22	2.88	20	1.25	1 1/8	25
24	32	24.25	1.88	27.25	0.0625	26.12	3.25	20	1.38	1 1/4	29.5

ASME/ANSI B16.5 Class 300 Weld Neck Flange Dimensions and Weight Chart, Weld Neck Flange ansi 300, Weld Neck Flange 300 lbs, Weld Neck Flange dimensions 300#

We are a leading manufacturer and exporter of a wide range of ANSI B 16.5 Class 300 – Weld Neck Flanges, which has dimensions that corresponds to the inside diameter of the pipe and has a standard wall thickness of 40S. The weights of these flanges are based as per the clients’ requirements.

Pipe		Flange					Hub		Raised Face	Drilling Template			Approx. Weight
Nom. size	O D in. mm	D in. mm	J in. mm	b in. mm	h in. mm	m in. mm		g in. mm		Number	l in. mm	k in. mm	≈ Pounds Kilo
1/2″	0,84 21,3	3,75 95,2	0,88 22,3	0,56 14,2	0,88 22,3	1,50 38,1		1,38 35,0		4	0,62 15,7	2,62 56,5	1,4 0,64
3/4″	1,05 26,7	4,62 117,3	10,9 27,7	0,62 15,7	1,00 25,4	1,88 47,7		1,69 42,9		4	0,75 19,0	3,25 82,5	3,5 1,12
1″	1,315 33,4	4,88 123,9	1,36 34,5	0,69 17,5	1,06 26,9	2,12 53,8		2,00 50,8		4	0,75 19,0	3,50 88,9	3,0 1,36
1 1/4″	1,66 42,2	5,25 133,3	1,70 43,2	0,75 19,0	1,06 26,9	2,50 63,5		2,50 63,5		4	0,75 19,0	3,88 98,5	3,7 1,68
1 1/2″	1,90 48,3	6,12 155,4	1,95 49,5	0,81 20,6	1,19 30,2	2,75 69,8		2,88 73,1		4	0,88 22,3	4,50 114,3	5,5 2,49
2″	2,375 60,3	6,50 165,1	2,44 62,0	0,88 22,3	1,31 33,2	3,31 84,0		3,62 91,9		8	0,75 19,0	5,00 127,0	6,3 2,87
2 1/2″	2,875 73,0	7,50 190,5	2,94 74,7	1,00 25,4	1,50 38,1	3,94 100,0		4,12 104,6		8	0,88 22,3	5,38 149,3	9,5 4,32
3″	3,50 88,9	8,25 209,5	3,57 90,7	1,12 28,4	1,69 42,9	4,62 117,3		5,00 127,0		8	0,88 22,3	6,62 168,1	12,9 5,85
3 1/2″	4,00 101,6	9,00 228,6	4,07 103,4	1,19 30,2	1,75 44,4	5,25 133,3		5,50 139,7		8	0,88 22,3	7,25 184,1	16,2 7,34
4″	4,50 114,3	10,00 254,0	4,57 116,1	1,25 31,7	1,88 47,7	5,75 146,0		6,19 157,2		8	0,88 22,3	7,88 200,1	21,2 9,61
5″	5,563 141,3	11,00 279,4	5,66 143,8	1,38 35,0	2,00 50,8	7,00 177,8		7,31 185,6		8	0,88 22,3	9,25 234,9	27,1 12,3
6″	6,625 168,3	12,50 317,5	6,72 170,7	1,44 36,5	2,06 52,3	8,12 206,2		8,50 215,9		12	0,88 22,3	10,62 269,7	34,4 15,6
8″	8,625 219,1	15,00 381,0	8,72 221,5	1,62 41,1	2,44 61,9	10,25 260,3		10,62 269,7		12	1,00 25,4	13,00 330,2	53,3 24,4
10″	10,75 273	17,50 444,5	10,88 276,3	1,88 47,7	2,62 66,5	12,62 320,5		12,75 323,8		16	1,12 28,4	15,25 387,3	75,1 34,1
12″	12,75 323,8	20,50 520,7	12,88 327,1	2,00 50,8	2,00 50,8	14,76 375,0		15,00 381,0		16	1,25 31,7	17,75 450,8	110 49,7
14″	14,0 355,6	23,00 584,2	14,14 359,1	2,12 53,8	3,00 76,2	16,75 425,4		16,25 412,7		20	1,25 31,7	20,25 514,3	154 69,9
16″	16,0 406,4	25,50 647,7	16,16 410,5	2,25 57,1	3,25 82,5	19,00 482,6		18,50 469,9		20	1,38 35,0	22,50 571,5	194 88,1
18″	18,0 457,2	28,00 711,2	18,18 461,8	2,38 60,4	3,50 88,9	21,00 533,4		21,00 533,4		24	1,38 35,0	24,75 628,6	240 109
20″	20,0 508	30,50 774,7	20,20 513,1	2,50 63,5	3,75 95,2	23,12 587,2		23,00 584,2		24	1,38 35,0	27,00 685,8	295 134
24″	24,0 609,6	36,00 914,4	24,25 615,9	2,75 69,8	4,19 106,4	27,62 701,5		27,25 692,2		24	1,62 41,1	32,00 812,8	443 201

Flange – Weld Neck, ANSI Class 900, ASME B16.5, Ring Type Joint (in)

ASME Standards
- ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
ASTM Standards
- ASTM A105 / A105M – Specification for Carbon Steel Forgings for Piping Applications
Bolt circle diameters are 1/8 inch larger than bolt diameter.

pe Size (NPS)	Outside Diameterof Flange A	Thickness of Flange C	Diameter of Bore D	Diameter of Hub at Weld H	Diameter of Hub at Base J	Length of Hub K	Diameter of Raised Face T	Diameter of Grove U	Grove Width W	Grove Depth X	Number of Bolt Holes	Diameter of Bolt Holes	Bolt CircleDiameter P
1/2	4 3/4	7/8	*	0.840	1 1/2	2 3/8	2 3/8	1 9/16	11/32	1/4	4	7/8	3 1/4
3/4	5 1/8	1	*	1.050	1 3/4	2 3/4	2 5/8	1 3/4	11/32	1/4	4	7/8	3 1/2
1	5 7/8	1 1/8	*	1.315	2 1/16	2 7/8	2 13/16	2	11/32	1/4	4	1	4
1 1/4	6 1/4	1 1/8	*	1.660	2 1/2	2 7/8	3 3/16	2 3/8	11/32	1/4	4	1	4 3/8
1 1/2	7	1 1/4	*	1.900	2 3/4	3 1/4	3 5/8	2 11/16	11/32	1/4	4	1 1/8	4 7/8
2	8 1/2	1 1/2	*	2.375	4 1/8	4	4 7/8	3 3/4	15/32	5/16	8	1	6 1/2
2 1/2	9 5/8	1 5/8	*	2.875	4 7/8	4 1/8	5 3/8	4 1/4	15/32	5/16	8	1 1/8	7 1/2
3	9 1/2	1 1/2	*	3.500	5	4	6 1/8	4 7/8	15/32	5/16	8	1	7 1/2
3 1/2	–	–	–	–	–	–	–	–	–	–	–	–	–
4	11 1/2	1 3/4	*	4.500	6 1/4	4 1/2	7 1/8	5 7/8	15/32	5/16	8	1 1/4	9 1/4
5	13 3/4	2	*	5.563	7 1/2	5	8 1/2	7 1/8	15/32	5/16	8	1 3/8	11
6	15	2 3/16	*	6.625	9 1/4	5 1/2	9 1/2	8 5/16	15/32	5/16	12	1 1/4	12 1/2
8	18 1/2	2 1/2	*	8.625	11 3/4	6 3/8	12 1/8	10 5/8	15/32	5/16	12	1 1/2	15 1/2
10	21 1/2	2 3/4	*	10.750	14 1/2	7 1/4	14 1/4	12 3/4	15/32	5/16	16	1 1/2	18 1/2
12	24	3 1/8	*	12.750	16 1/2	7 7/8	16 1/2	15	15/32	5/16	20	1 1/2	21
14	25 1/4	3 3/8	*	14.00	17 3/4	8 3/8	18 3/8	16 1/2	21/32	7/16	20	1 5/8	22
16	27 3/4	3 1/2	*	16.00	20	8 1/2	20 5/8	18 1/2	21/32	7/16	20	1 3/4	24 1/4
18	31	4	*	18.00	22 1/4	9	23 3/8	21	25/32	1/2	20	2	27
20	33 3/4	4 1/4	*	20.00	24 1/2	9 3/4	25 1/2	23	25/32	1/2	20	2 1/8	29 1/2
22	–	–	–	–	–	–	–	–	–	–	–	–	–
24	41	5 1/2	*	24.00	29 1/2	11 1/2	30 3/8	27 1/4	1 1/16	5/8	20	2 5/8	35 1/2

Weld Neck Flange ring type joint, Weld Neck Flange rtj

Manufacturers, supplier & stockist of Weld Neck Flange ring type joint at best price in ready stock Weld neck flanges are flanges that are designed to be integrated into piping systems by what industry welders describe as butt welds. The production of these flanges is more expensive because of the long necks that are present. Weld neck flanges are preferred for use in high-stress applications. By welding pipe to the neck of the flange stress is transferred to the pipe. The inside diameter of the flange is machined to match the inside diameter of the tube reducing friction and obstruction of flow. The flanges are also available in some different types of material such as copper, stainless, cast iron, galvanized steel, as well as aluminum. There some advantages when we use this kind of flange along with just a few disadvantages.

Key Features:

Most commonly stocked flange due to the fact that one size fits all pipe schedules.
Fabricators can more easily cut pipe to length for slip-on flanges and their smaller thickness allows for easier alignment of bolting holes
ASME B16.5 code limits their usage for 1500#-2500# (lbs.) applications and they are generally not preferred for high pressure temperature environments.

4″ Class 150 Weld Neck Raised Face Flange

Manufacturers, supplier & stockist of 4 inch Class 150 Slip-On Raised Face Flange at best price in ready stock

Bolt Diameter:5/8"
Bolt Hole Diameter:7-1/2"
Class:150

Flange Outer Diameter:9.00"
Hub Diameter:5.31"
Length Through Hub:1.31"
Material:Steel
Number of Holes:8
Pipe Size:4"
Specification:ASTM A 105, ANSI B16.5
Style:Raised Face
Thickness:0.94"
Type:Weld Neck Flange
Product Weight: 13 lbs

6″ Class 150 Weld Neck Raised Face Steel Flange

Manufacturers, supplier & stockist of 6 inch Class 150 Slip-On Raised Face Flange at best price in ready stock

Bolt Diameter:3/4"
Bolt Hole Diameter:9-1/2"
Class:150

Flange Outer Diameter:11.00"
Hub Diameter:7.56"
Length Through Hub:1.56"
Material:Steel
Number of Holes:8
Pipe Size:6"
Specification:ASTM A 105, ANSI B16.5
Style:Raised Face
Thickness:1.00"
Type:Weld Neck Flange
Product Weight: 19 lbs

Weld Neck Flange price list

Manufacturers, supplier & stockist of Class 150, 300, 600, 900 lbs Slip-On Raised Face Flange, Weld Neck Flat face flanges at best price in ready stock

carbon steel a105 ansi Welding Neck/Socket welding flange specifications on stock for sale
US $1-2.5 / Kilogram

ansi b16.5 rasied face weld neck flange
US $0.9-38.4 / Piece

DIN standard slip blind forged ansi welding neck forging pipe stainless steel flange
US $1-500 / Piece

Best Price Titanium Flange to ANSI B16.5 Welding Neck
US $15-100 / Piece

Types of Weld Neck Flange, WNRF flanges Types

Types Of Weld Neck Flange, WNRF flanges Types

	SS 310 / 310S Weld Neck Flanges	•	Duplex Steel UNS S31803 Weld Neck Flanges
•	Stainless Steel 304 / 304L Weld Neck Flanges	•	Duplex Steel Weld Neck Flanges
•	Stainless Steel 316 / 316L Weld Neck Flanges	•	Duplex Steel UNS S32205 Weld Neck Flanges
•	Stailess Steel 321 / 321H Weld Neck Flanges	•	Super Duplex UNS S32750 Weld Neck Flanges
•	Monel 400 Weld Neck Flanges	•	Hastelloy C276 Weld Neck Flanges
•	SS Weld Neck Flanges	•	Steel Weld Neck Flanges
•	Inconel 625 Weld Neck Flanges	•	Alloy 20 Weld Neck Flanges
•	Cu-Ni 70/30 (C71500) Weld Neck Flanges	•	Cu-Ni 90/10 (C70600) Weld Neck Flanges
•	ASTM A105 Weld Neck Flanges	•	ASTM A350 LF2 / LF3 Weld Neck Flanges
•	Inconel 600 Weld Neck Flanges	•	Hastelloy B2 Weld Neck Flanges
•	SS 317 / 317L Weld Neck Flanges	•	Super Duplex Weld Neck Flanges
•	SS 347 Weld Neck Flanges	•	Super Duplex UNS S32950 Weld Neck Flanges
•	Monel K500 Weld Neck Flanges	•	Hastelloy C22 Weld Neck Flanges
•	Stainless Steel 446 Weld Neck Flanges	•	ANSI Weld Neck Flanges
•	Inconel 718 Weld Neck Flanges	•	904L Weld Neck Flanges
•	Incoloy 800 Weld Neck Flanges	•	Titanium Gr 2 Weld Neck Flanges
•	Incoloy 825 Weld Neck Flanges	•	Titanium Gr 5 Weld Neck Flanges

Weld Neck Flanges Manufacturers