Long Weld Neck Flange and SS Raised Face LWN Flanges Manufacturer

Stainless Steel Long Welding Neck Flange Supplier in Mumbai

LWN or as referred to as long weld neck flanges are most commonly seen in the oil and gas industry. The oil and gas industry uses high temperature and high pressure in their processing. And the materials being processed in these systems have different viscosity. Together all these parameters can stress out the components used in a piping system including flanges. Therefore, materials like stainless steel or other durable materials are preferred by Long Weld Neck Flange Manufacturers. Another benefit of using this device is that they function well despite fluctuations in temperatures.

Not many flange types can bear the fluctuation of temperatures, without failure. Fluctuation in temperature is very common in industries that deal with the processing of chemicals or even oil and gas. The design of the Ansi Ss Long Weld Neck Flange is what supports their use across such industries. Unlike a conventional weld neck flange, the construction of these flanges includes a long neck. The long neck here acts as a reinforcement, especially in critical piping systems that deal with safety. The reinforcement provided by the Carbon Steel Long Weld Neck Flange forms an integral part in the prevention of hazards in high pressure systems or in industrial and domestic applications. These flanges act as an anchor of sorts in places such as apartments or in factories. In processing factories or in apartments, the water-mains or gas pipe systems need Long Welding Neck Flanges as an anchor point. Therefore they arent welded to the pipe, the square cut on these flanges proves to be useful, especially since the Stainless Steel Long Weld Neck Flange may be used to replace the pipe in a system.

Do not forget to compare our price with other Carbon Steel LWNRF Flange manufacturers in India, Check A105 LWN Flange Dimensions Metric

Table of Content

What Is A Long Weld Neck Flange
Long Weld Neck Flange Specification
Most Famous Types Of Long Welding Neck
Long Weld Neck Flange Schedule Chart
Long Weld Neck Flange Weight Chart
Long Welding Neck Pressure Ratings
SS LWNRF Flange Tolerance
Long Welding Neck Flange Dimensions Class 150
Long Weld Neck Flange Class 300 Dimensions Standards
LWNRF Flange Dimensions Class 600
SS Long Weld Neck Flange Dimensions Class 900
long Welding Neck Flange Dimensions 1500#
Long Weld Neck Flange Class 2500 Dimensions Tabel
Long Welding Neck Flange Application
Stainless Steel Long Neck Flange Weight Calculation

What Is A Long Weld Neck Flange

Long Weld Neck Flanges resemble weld neck flanges, aside from the neck, which is expanded and acts like an exhausting expansion. Long weld neck flanges can be utilized in high pressing factor modern applications, just as high temperature circumstances. They are frequently used in the oil and gas or petrochemical businesses.

Long Weld Neck Flange Specification

Looking for Alloy Steel LWN Flanges Supplier in India? We stock and supply Super Suplex Long Weld Neck Rtj Flange and Long Welding Neck Flange Asme B16.5

Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, MSS S44, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN Flanges, ISO70051, JISB2220, BS1560-3.1, API605, EN1092
Size Chart	1/2 inch to 48 inch
DIN Standards	6, 10, 16, 25, 40Bar and PN6, PN10, PN16, PN25, PN40, PN64
Pressure Rating ANSI	Class 150, 300, 600, 900, 1500, 2500 LBS
UNI Standards	6, 10, 16, 25, 40Bar
JIS Standards	5, 10, 16 20, 30, 40, 63 K
Coating	Yellow Transparent, Oil Black Paint, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized etc
EN Standards	6, 10, 16, 25, 40Bar
Most common types	Screwed / Forged / Threaded / Plate
Flange Face Type	Lap-Joint Face, Raised Face, Ring Type Joint, Flat Face, Small Tongue, Large Male-Female, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier
Flanges Marking	All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request.
Supplier and Distributors Located in	Coimbatore, Kuwait, Rajkot, Calgary, Ludhiana, Karachi, Muscat, Khobar, Janeiro, India, London, Melbourne, Bogota, Courbevoie, Pimpri Chinchwad, Ludhiana, Gujarat, Bengaluru, Bangalore, Montreal, Tehran, Ranchi, Santiago, Ankara, Manama, Hyderabad, Riyadh, Dammam, Baroda, Kolkata, Caracas, Noida, Chennai, Mumbai, Sydney, Mexico, Howrah, Jamshedpur, Gurgaon, Kanpur, Lagos, Nagpur, New Delhi, Istanbul, Vadodara, Abu Dhabi, Indore, Perth, Ahvaz, Port of Spain, Gimhae si, Ernakulam, Ahmedabad, Thiruvananthapuram, Surat
Production technique	Forged, Heat treated and machined
Test	X-ray detector, Direct-reading Spectrograph, UI trasonic flaw detector, Hydrostatic testing machine, Magnetic particle detector
Equipment	Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc

Most Famous Types Of Long Welding Neck

Asme 3/4 inch 300lbs Long Weld Neck Flange

Class150 Raised Face Long Weld Neck Flange

Ansi Ss Long Weld Neck Flange

Din 2631 Ansi Rtj Asme B1647 Series B Long Welding Neck Flange

Mild Steel Long Neck Flanges

Ss 304 Inch Reducing Raised Face Long Weld Neck Flanges

Asme B16.5 Rf 300lbs Long Welding Neck Flange

Stainless Steel Long Welding Neck Flange

316/316l Stainless Steel Flange Olet Long Weld Neck Flange

Stainless Steel Forged Class 150 Asme B16.5 Long Welding Neck Flange

Asme B16.5 B16.47 Flanges Long Weld Necks Lwn Flange

Din 28115 Long Neck Welding Flange

Stainless Steel Forging Long Welding Necks Integral Flange

Ansi B16.5 Long Weld Neck Titanium Flange

Forged Steel Lwn Long Welding Neck Flange

B16.5 Stainless Long Neck Weld Flange Class 900

Asme B16.5 Stainless Steel 300lbs 10 inch Raised Face Long Weld Neck Flange

Titanium Long Weld Neck Flange

Sch 40 Long Weld Neck Raised Face Flange

12 inch Api 6a Carbon Steel A694 F65 Long Weld Neck Flange

High Pressure Long Welding Neck Flange

Long Weld Neck Flange Schedule Chart

Nominal Pipe Size	Outside Diameter	Schedule 10	Schedule 20	Schedule 30	Std. Wall	Schedule 40	Schedule 60	Extra Strong	Schedule 80	Schedule 100	Schedule 120	Schedule 140	Schedule 160	Double Extra Strong
1/2”	0.840	0.674	–	–	0.622	0.622	–	0.546	0.546	–	–	–	0.464	0.252
1”	1.315	1.097	–	–	1.049	1.049	–	0.957	0.957	–	–	–	0.815	0.599
4”	4.500	4.260	–	–	4.026	4.026	–	3.826	3.826	–	3.624	–	3.438	3.152
1.1/4”	1.660	1.442	–	–	1.380	1.380	–	1.278	1.278	–	–	–	1.160	0.896
1.1/2”	1.900	1.682	–	–	1.610	1.610	–	1.500	1.500	–	–	–	1.338	1.100
2”	2.375	2.157	–	–	2.067	2.067	–	1.939	1.939	–	–	–	1.687	1.503
3/4”	1.050	0.884	–	–	0.824	0.824	–	0.742	0.742	–	–	–	0.612	0.434
2.1/2”	2.875	2.635	–	–	2.469	2.469	–	2.323	2.323	–	–	–	2.125	1.771
3”	3.500	3.260	–	–	3.068	3.068	–	2.900	2.900	–	–	–	2.624	2.300
5”	5.563	5.295	–	–	5.047	5.047	–	4.813	4.813	–	4.563	–	4.313	4.063
6”	6.625	6.357	–	–	6.065	6.065	–	5.761	5.761	–	5.501	–	5.187	4.897
8”	8.625	8.329	8.125	8.071	7.981	7.981	7.813	7.625	7.625	7.437	7.187	7.001	6.813	6.875
10”	10.750	10.420	10.250	10.136	10.020	10.020	9.750	9.750	9.562	9.312	9.062	8.750	8.500	8.750
12”	12.750	12.390	12.250	12.090	12.000	11.938	11.626	11.750	11.374	11.062	10.750	10.500	10.126	10.750
14”	14.000	13.500	13.376	13.250	13.250	13.124	12.812	13.000	12.500	12.124	11.814	11.500	11.188	–
42”	42.000	–	–	–	41.250	–	–	41.000	–	–	–	–	–	–
16”	16.000	15.500	15.376	15.250	15.250	15.000	14.688	15.000	14.312	13.938	13.564	13.124	12.812	–
3-1/2”	4.000	3.760	–	–	3.548	3.548	–	3.364	3.364	–	–	–	–	2.728
18”	18.000	17.500	17.376	17.124	17.250	16.876	16.500	17.000	16.124	15.688	15.250	14.876	14.438	–
20”	20.000	19.500	19.250	19.000	19.250	18.812	18.376	19.000	17.938	17.438	17.000	16.500	16.062	–
24”	24.000	23.500	23.250	22.876	23.250	22.624	22.062	23.000	21.562	20.938	20.376	19.876	19.312	–
30”	30.000	29.376	29.000	28.750	29.250	–	–	29.000	–	–	–	–	–	–
36”	36.000	35.376	35.000	34.750	35.250	34.500	–	35.000	–	–	–	–	–	–

Long Weld Neck Flange Weight Chart

Nom Pipe Size	150#			300#			600#			900#			1500#			2500#
	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K
1”	1.1	0.8	0.9	1.7	1.4	1.5	1.9	1.7	1.7	3.9	3.6	3.7	3.9	3.6	3.7	5.4	5	5
1/2”	0.7	0.4	0.5	0.8	0.7	0.8	0.9	0.8	0.8	2.1	1.8	1.9	2.1	1.8	1.9	3.2	3	3
3/4”	0.8	0.7	0.8	1.4	1.2	1.2	1.6	1.4	1.4	2.7	2.4	2.7	2.7	2.4	2.7	3.6	4	4.5
1.1/4”	1.5	1.2	1.3	2.2	1.8	2	2.6	2.1	2.4	4.5	4.1	4.3	4.5	4.1	4.3	7.8	8	8
1.1/2”	1.8	1.4	1.6	3.2	2.7	2.9	3.6	3.1	3.4	6.2	5.4	5.9	6.2	5.4	5.9	11.5	11	11
2”	2.7	2.2	2.6	3.6	3.2	3.5	4.7	3.9	4.4	11.3	10.5	11.3	11.3	10.5	11.3	19	17	17
2.1/2”	4.4	3.5	4.1	5.4	4.5	5.3	4.8	5.4	6.8	16.3	15.8	16	16.3	15.8	16	24	25	25
3”	5.2	3.8	5.1	7.3	5.9	7.2	8.7	7.3	8.9	15	12.3	16.8	21	21.5	19.5	42.6	38	39
3-1/2”	6.4	5	6.5	8.9	7.5	9.2	11.6	9	12.7	–	–	–	–	–	–	–	–	–
4”	7.5	5.6	7.5	11.8	10	12.2	18.4	16.5	18.6	24	23.2	24.5	31.8	31	33	64	58	60
5”	9.2	6.5	9.2	16	12.5	16	31	28.5	30.8	38.5	37.5	39.5	59	58.8	60	111	95	101
24”	119	95	190	248	212	350	372	330	532	680	632	905	1504	–	–	–	–	–
6”	11.0	8.1	11.8	20.2	16.5	22	37	36.2	38	50	48.3	51.5	72	74	75	171	146	156
8”	18.4	13	20.4	31.2	25.5	36	54.5	51.5	62.2	85	75	89	124	112	125	261	220	242
12”	37	28.5	47	63.5	52	82.5	105	89.5	132	168	146	187	306	264	316	698	590	665
14”	51	37.5	60	86	73	108	150	102	158	198	172	224	416	–	–	–	–	–
16”	61.5	44.5	61	112	88	139	177	150	225	225	192	259	567	–	–	–	–	–
10”	25.5	18.4	31	44.3	35	55	98.5	76.2	102	123	110	131	207	184	215	485	420	465
18”	71.5	54	93	141	115	178	228	180	285	318	272	383	736	–	–	–	–	–
20”	85	72	127	173	139	228	285	231	365	376	330	482	929	–	–	–	–	–

Long Welding Neck Pressure Ratings

Manufacturer and exporter of Stainless Steel 316 Long Weld Neck Flange All sizes and Class, View A350 LF2 LWNRF Flange Tolerance and Standard

Temperature °F	Class 150#	Class 300#	Class 400#	Class 600#	Class 900#	Class 1500#	Class 2500#
400	195	515	685	1025	1540	2570	4280
-20 to 100	275	720	960	1440	2160	3600	6000
200	235	620	825	1240	1860	3095	5160
500	170	480	635	955	1435	2390	3980
650	125	445	590	890	1330	2220	3700
700	110	430	580	870	1305	2170	3620
750	95	425	570	855	1280	2135	3560
800	80	420	565	845	1265	2110	3520
300	215	560	745	1120	1680	2795	4660
1150	20	235	315	475	710	1185	1970
600	140	450	600	900	1355	2255	3760
850	65	420	555	835	1255	2090	3480
900	50	415	555	830	1245	2075	3460
950	35	385	515	775	1160	1930	3220
1050	20	345	460	685	1030	1720	2865
1100	20	305	405	610	915	1525	2545
1200	20	185	245	370	555	925	1545
1500	20	40	55	85	125	205	345
1250	20	145	195	295	440	735	1230
1350	20	95	130	190	290	480	800
1000	20	350	465	700	1050	1750	2915
1400	20	75	100	150	225	380	630
1450	20	60	80	115	175	290	485
1300	20	115	155	235	350	585	970

SS LWNRF Flange Tolerance

Dimension	Flange	Tolerance
A	Outside Diameter	When Outer Diameter is 24 inch or less: ±1/16 inch (1.6mm) When Outer Diameter is over 24 inch: ±1/8 inch (3.2mm)
D	Inside Diameter	10" and smaller: ±1/32" (0.8mm) 12" thru 18": +1/8" (3.2mm) 20" and larger: -1/16" (1.6mm)
B	Diameter of contact face	1/16 inch raised face: ±1/32 inch (0.8mm) 1/4 inch Raised Face, Tongue & Groove (male & female): ±1/64 inch (0.4mm)
J	Diameter of hub at base	When hub base is 24 inch or smaller: ±1/16 Inch (1.6mm) When hub base is over 24 Inch: ±1/8" (3.2mm)
H	Diameter of hub at point of welding	5 Inch and smaller: +3/32 Inch (2.4mm), -1/32 Inch (0.8mm) 6 Inch and larger: +5/32 Inch (4.0mm), -1/32 (0.8mm)
P	Drilling	Bolt circle: ±1/16 Inch (1.6mm) Bolt hole spacing: ±1/32 Inch (0.8mm)
	Eccentricity of bolt circle with respect to facing	2 1/2 Inch and smaller ±1/32 Inch (0.8mm) max. 3 Inch and larger ±1/16 Inch (1.6mm) max.
C	Thickness	18 Inch and smaller: ±1/8 Inch (3.2mm), -0" 20 Inch and larger: ±3/16 Inch (4.8mm), -0"
K	Length of hub	10 inch and smaller: ±1/16 Inch (1.6mm) 12 Inch and larger: ±1/8 Inch (3.2mm)

Long Welding Neck Flange Dimensions Class 150

ø In Inches	D	b	g	m	a	J*	h	k	Holes	l	Kg.
1/2	88,9	11,1	34,9	30,2	21,3	15,7	47,6	60,3	4	15,9	0,500
3/4	98,4	12,7	42,9	38,1	26,7	20,8	52,4	69,8	4	15,9	0,700
1	107,9	14,3	50,8	49,2	33,5	26,7	55,6	79,4	4	15,9	1,100
1 1/4	117,5	15,9	63,5	58,8	42,2	35,1	57,1	88,9	4	15,9	1,500
1 1/2	127,0	17,5	73,0	65,1	48,3	40,9	61,9	98,4	4	15,9	1,800
2	152,4	19,0	92,1	77,8	60,3	52,6	63,5	120,6	4	19,0	2,700
2 1/2	177,8	22,2	104,8	90,5	73,1	62,7	69,8	139,7	4	19,0	4,400
3	190,5	23,8	127,0	107,9	88,9	78,0	69,8	152,4	4	19,0	5,200
3 1/2	215,9	23,8	139,7	122,2	101,6	90,2	71,4	177,8	8	19,0	6,400
4	228,6	23,8	157,2	134,9	114,3	102,4	76,2	190,5	8	19,0	7,500
5	254,0	23,8	185,7	163,5	141,2	128,3	88,9	215,9	8	22,2	9,200
8	342,9	28,6	269,9	246,1	219,1	202,7	101,6	298,4	8	22,2	18,300
10	406,4	30,2	323,8	304,8	273,0	254,5	101,6	361,9	12	25,4	25,000
12	482,6	31,7	381,0	365,1	323,8	304,8	114,3	431,8	12	25,4	39,000
24	812,8	47,6	692,1	663,6	609,6	590,5	152,4	749,3	20	34,9	119,000
14	533,4	34,9	412,7	400,0	355,6	336,5	127,0	476,2	12	28,6	51,000
16	596,9	36,5	469,9	457,2	406,4	387,3	127,0	539,7	16	28,6	60,000
18	635,0	39,7	533,4	504,8	457,2	438,1	139,7	577,8	16	31,7	71,000
20	698,5	42,9	584,2	558,8	508,0	488,9	144,5	635,0	20	31,7	88,000
22	749,3	46,0	641,2	609,6	558,8	539,7	149,2	692,1	20	34,9	102,000
6	279,4	25,4	215,9	192,1	168,4	154,2	88,9	241,3	8	22,2	11,000

Long Weld Neck Flange Class 300 Dimensions Standards

Manufacturer and supplier of Long Welding Neck Flange, API 6A LWNRF Flange in India, Buy Titanium Long Weld Neck Flange at best price ex Mumbai

ø in Inches	D	b	g	m	a	J*	h	k	Holes	l	Kg.
3/4	117,5	15,9	42,9	47,6	26,7	20,8	57,1	82,5	4	19,0	1,500
2	165,1	22,2	92,1	84,1	60,3	52,6	69,8	127,0	8	19,0	3,600
1	123,8	17,5	50,8	54,0	33,5	26,7	61,9	88,9	4	19,0	1,900
1 1/4	133,3	19,0	63,5	63,5	42,2	35,1	65,1	98,4	4	19,0	2,600
1/2	95,2	14,3	34,9	38,1	21,3	15,7	52,4	66,7	4	15,9	0,900
1 1/2	155,6	20,6	73,0	69,8	48,3	40,9	68,3	114,3	4	22,2	3,300
2 1/2	190,5	25,4	104,8	100,0	73,1	62,7	76,2	149,2	8	22,2	5,400
3	209,5	28,6	127,0	117,5	88,9	78,0	79,4	168,3	8	22,2	7,400
3 1/2	228,6	30,2	139,7	133,3	101,6	90,2	81,0	184,1	8	22,2	8,900
8	381,0	41,3	269,9	260,3	219,1	202,7	111,1	330,2	12	25,4	31,000
4	254,0	31,7	157,2	146,0	114,3	102,4	85,7	200,0	8	22,2	11,900
5	279,4	34,9	185,7	177,8	141,2	128,3	98,4	234,9	8	22,2	16,000
6	317,5	36,5	215,9	206,4	168,4	154,2	98,4	269,9	12	22,2	20,200
10	444,5	47,6	323,4	320,7	273,0	254,5	117,5	387,3	16	28,6	44,300
12	520,7	50,8	381,0	374,6	323,8	304,8	130,2	450,8	16	31,7	64,000
14	584,2	54,0	412,7	425,4	355,6	336,5	142,9	514,3	20	31,7	88,000
24	914,4	69,8	692,1	701,7	609,6	590,5	168,3	812,8	24	41,3	238,000
16	647,7	57,1	469,9	482,6	406,4	387,3	146,0	571,5	20	34,9	113,000
18	711,2	60,3	533,4	533,4	457,2	438,1	158,7	628,6	24	34,9	134,000
20	774,7	63,5	584,2	587,4	508,0	488,9	161,9	685,8	24	34,9	171,000
22	838,2	66,7	641,2	641,2	558,8	539,7	165,1	742,9	24	41,3	195,000

LWNRF Flange Dimensions Class 600

ø in Inches	D	b	g	m	J	h	k	Holes	l	Kg.
3/4	117,5	15,9	42,9	47,6	27,7	25,4	82,5	4	19,0	1,400
1	123,8	17,5	50,8	54,0	34,5	27,0	88,9	4	19,0	1,600
1 1/4	133,3	20,6	63,5	63,5	43,2	28,6	98,4	4	19,0	2,100
1 1/2	155,6	22,2	73,0	69,8	49,5	31,7	114,3	4	22,2	3,100
2	165,1	25,4	92,1	84,1	62,0	36,5	127,0	8	19,0	3,700
4	273,0	38,1	157,2	152,4	116,1	54,0	215,9	8	25,4	11,800
1/2	95,2	14,3	34,9	38,1	22,3	22,2	66,7	4	15,9	0,800
2 1/2	190,5	28,6	104,8	100,0	74,7	41,3	149,2	8	22,2	5,400
3	209,5	31,7	127,0	117,5	90,7	46,0	168,3	8	22,2	7,300
3 1/2	228,6	34,9	139,7	133,3	103,4	49,2	184,1	8	25,4	8,900
5	330,2	44,4	185,7	188,9	143,8	60,3	266,7	8	28,6	24,500
6	355,6	47,6	215,9	222,2	170,7	66,7	292,1	12	28,6	29,500
8	419,1	55,6	269,9	273,0	221,5	76,2	349,2	12	31,7	43,000
24	939,8	101,6	692,1	717,5	615,9	139,7	838,2	24	50,8	330,000
12	558,8	66,7	381,0	400,0	327,1	92,1	488,9	20	34,9	86,000
14	603,2	69,8	412,7	431,8	359,1	93,7	527,0	20	38,1	100,000
16	685,8	76,2	469,9	495,3	410,5	106,4	603,2	20	41,3	142,000
10	508,0	63,5	323,8	342,8	276,3	85,7	431,8	16	34,9	70,000
18	742,9	82,5	533,4	546,1	461,8	117,5	654,0	20	44,4	175,000
20	812,8	88,9	584,2	609,6	513,1	127,0	723,9	24	44,4	232,000
22	869,9	95,2	641,2	666,7	564,4	133,3	777,9	24	47,6	292,000

SS Long Weld Neck Flange Dimensions Class 900

Size in Inches	Size in mm	OD Outer Diameter	Flange thickness	Hub Outer Diameter	Weld Neck Outer Diameter	Welding Neck Length	Bore	Raised Fase Diameter	Raised Fase Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
3/4	20	130	25.4	44	26.7	70	42.9	7	88.9	1.6
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
1	25	150	28.6	52	33.4	73		50.8	7	101.6	1.6
1 1/4	32	160	28.6	64	42.2	73		63.5	7	111.1	1.6
3	80	240	38.1	127	88.9	102		127	7	190.5	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
4	100	290	44.5	159	114.3	114		157.2	7	235	1.6
14	350	640	85.8	451	355.6	213		412.8	7	558.8	1.6
5	125	350	50.8	190	141.3	127		185.7	7	279.4	1.6
6	150	380	55.6	235	168.3	140		215.9	7	317.5	1.6
10	250	545	69.9	368	273	184		323.8	7	469.9	1.6
12	300	610	79.4	419	323.8	200		381	7	533.4	1.6
16	400	705	88.9	508	406.4	216		469.9	7	616	1.6
18	450	785	101.6	565	457	229		533.4	7	685.8	1.6
24	600	1040	139.7	749	610	292		692.2	7	901.7	1.6
8	200	470	63.5	298	219.1	162		269.9	7	393.7	1.6
20	500	855	108	622	508	248		584.2	7	749.3	1.6

long Welding Neck Flange Dimensions 1500#

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub Outer Diameter	Weld Neck Outer Diameter	Welding Neck Length	Bore	Raised Face Diameter	Raised Face Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
3/4	20	130	25.4	44	26.7	70	42.9	7	88.9	1.6
1	25	150	28.6	52	33.4	73	50.8	7	101.6	1.6
1 1/4	32	160	28.6	64	42.2	73	63.5	7	111.1	1.6
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
3	80	265	47.7	133	88.9	117		127	7	203.2	1.6
4	100	310	54	162	114.3	124		157.2	7	241.3	1.6
5	125	375	73.1	197	141.3	156		185.7	7	292.1	1.6
14	350	750	133.4	495	355.6	298		412.8	7	635	1.6
24	600	1170	203.2	762	610	406		692.2	7	990.6	1.6
6	150	395	82.6	229	168.3	171		215.9	7	317.5	1.6
8	200	485	92.1	292	219.1	213		269.9	7	393.7	1.6
10	250	585	108	368	273	254		323.8	7	482.6	1.6
12	300	675	123.9	451	323.8	283		381	7	571.5	1.6
16	400	825	146.1	552	406.4	311		469.9	7	704.8	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
18	450	915	162	597	457	327		533.4	7	774.7	1.6
20	500	985	177.8	641	508	356		584.2	7	831.8	1.6

Long Weld Neck Flange Class 2500 Dimensions Tabel

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub Outer Diameter	Weld Neck Outer Diameter	Welding Neck Length	Bore	Rasied Face Diameter	Rasied Face Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	135	30.2	43	21.3	73	Refer Note	34.9	7	88.9	1.6
1	25	160	35	57	33.4	89		50.8	7	108	1.6
1 1/4	32	185	38.1	73	42.2	95		63.5	7	130.2	1.6
1 1/2	40	205	44.5	79	48.3	111		73	7	146	1.6
10	250	675	165.1	375	273	419		323.8	7	539.8	1.6
3/4	20	140	31.8	51	26.7	79		42.9	7	95.2	1.6
2	50	235	50.9	95	60.3	127		92.1	7	171.4	1.6
2 1/2	65	265	57.2	114	73	143		104.8	7	196.8	1.6
4	100	355	76.2	165	114.3	190		157.2	7	273	1.6
5	125	420	92.1	203	141.3	229		185.7	7	323.8	1.6
6	150	485	108	235	168.3	273		215.9	7	368.3	1.6
8	200	550	127	305	219.1	318		269.9	7	438.2	1.6
3	80	305	66.7	133	88.9	168		127	7	228.6	1.6
12	300	760	184.2	441	323.8	464		381	7	619.1	1.6

Long Welding Neck Flange Application

Power Plan
Petro chemical
Oil & Gas
Cement
Chemical
Oil Mills
Sugar
Refineries
Breweries
Nuclear Power
Paper
Mining
Fertilizers
Construction
Shipbuilding
Engineering Co.&
Defence
Steel Plant
Railway
Offshore

Stainless Steel Long Neck Flange Weight Calculation

The weight of a long weld neck flange can be calculated by using the following formula :
Mass = [ ( X + B ) / 2 * ( X – B ) / 2 * 0.0246615 * ( Y – T ) * 10-3 ] + [ ( D2 – B2 – nd2 ) * T + ( G2 – B2 ) * t ] * 6.165375 * 10-6,

You can check our associates and dealers at different part of world

Products	We supplied to following Locations
Asme 3/4 Inch 300lbs Long Weld Neck Flange	Indonesia, Philippines, Belgium, Dammam -KSA
Class150 Raised Face Long Weld Neck Flange	Thailand, Europe, France, Qatar
Ansi Ss Long Weld Neck Flange	Malaysia, Thailand, Germany, Czechia
Din 2631 Ansi Rtj Asme B1647 Series B Long Welding Neck Flange	USA, Bangladesh, Finland, Malaysia
Mild Steel Long Neck Flanges	Brazil, Kuwait, Saudi Arabia (KSA), South Africa
Ss 304 Inch Reducing Raised Face Long Weld Neck Flanges	Singapore, Singapore, South Africa, Bahrain
Asme B16.5 Rf 300lbs Long Welding Neck Flange	UK, Philippines, Nigeria, Australia
Stainless Steel Long Welding Neck Flange	Malaysia, Hong Kong, UAE, Oman
316/316l Stainless Steel Flange Olet Long Weld Neck Flange	Italy, Iran, Singapore, Chile
Stainless Steel Forged Class 150 Asme B16.5 Long Welding Neck Flange	Turkey, Norway, Malaysia, United Arab Emirates (UAE)
Asme B16.5 B16.47 Flanges Long Weld Necks Lwn Flange	Dubai, Russia, Malaysia, Netherlands
Din 28115 Long Neck Welding Flange	Spain, Mexico, UK, Egypt
Stainless Steel Forging Long Welding Necks Integral Flange	Europe, Malaysia, UAE, United Kingdom -UK
Ansi B16.5 Long Weld Neck Titanium Flange	Canada, Poland, Ellington -United States, UK
Forged Steel Lwn Long Welding Neck Flange	Singapore, Canada, Malaysia, Philippines
B16.5 Stainless Long Neck Weld Flange Class 900	Malaysia, Romania, Japan, Europe
Asme B16.5 Stainless Steel 300lbs 10 Inch Raised Face Long Weld Neck Flange	Colombia, Malaysia, China, Sweden
Titanium Long Weld Neck Flange	Taiwan, Los Alamos -Mexico, Philippines, Malaysia
Sch 40 Long Weld Neck Raised Face Flange	South Korea, NY 12203 (USA), Malaysia, Singapore

Long Weld Neck Flange Manufacturers