ANSI ASME B16.5 CLASS 150 WELD NECK FLANGES

Class 150 Weld Neck Flange Dimensions as per ASME B16.5

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Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	90	9.6	30	21.3	46	According to Schedule	34.9	2	60.3	1.6
3/4	20	100	11.2	38	26.7	51		42.9	2	69.9	1.6
1	25	110	12.7	49	33.4	54		50.8	2	79.4	1.6
1 1/4	32	115	14.3	59	42.2	56		63.5	2	88.9	1.6
1 1/2	40	125	15.9	65	48.3	60		73	2	98.4	1.6
2	50	150	17.5	78	60.3	62		92.1	2	120.7	1.6
2 1/2	65	180	20.7	90	73	68		104.8	2	139.7	1.6
3	80	190	22.3	108	88.9	68		127	2	152.4	1.6
3 1/2	90	215	22.3	122	101.6	70		139.7	2	177.8	1.6
4	100	230	22.3	135	114.3	75		157.2	2	190.5	1.6
5	125	255	22.3	164	141.3	87		185.7	2	215.9	1.6
6	150	280	23.9	192	168.3	87		215.9	2	241.3	1.6
8	200	345	27	246	219.1	100		269.9	2	298.5	1.6
10	250	405	28.6	305	273	100		323.8	2	362	1.6
12	300	485	30.2	365	323.8	113		381	2	431.8	1.6
14	350	535	33.4	400	355.6	125		412.8	2	476.3	1.6
16	400	595	35	457	406.4	125		469.9	2	539.8	1.6
18	450	635	38.1	505	457.2	138		533.4	2	577.9	1.6
20	500	700	41.3	559	508	143		584.2	2	635	1.6
24	600	815	46.1	663	610	151		692.2	2	749.3	1.6

Class 150 Weld Neck Flange Stud & Bolt Dimesions

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Size in Inch	Size in mm	No of Bolts	Bolt Size UNC	Machine Bolt Length	RF Stud Length	Hole Size	ISO Stud Size	Weight in kg
1/2	15	4	1/2	50	55	5/8	M14	0.6
3/4	20	4	1/2	50	65	5/8	M14	0.9
1	25	4	1/2	55	65	5/8	M14	1.4
1 1/4	32	4	1/2	55	70	5/8	M14	1.4
1 1/2	40	4	1/2	65	70	5/8	M14	1.8
2	50	4	5/8	70	85	3/4	M16	2.7
2 1/2	65	4	5/8	75	90	3/4	M16	3.7
3	80	4	5/8	75	90	3/4	M16	4.6
3 1/2	90	8	5/8	75	90	3/4	M16	5.5
4	100	8	5/8	75	90	3/4	M16	6.8
5	125	8	3/4	85	95	7/8	M20	8.7
6	150	8	3/4	85	100	7/8	M20	10.9
8	200	8	3/4	90	110	7/8	M20	17.7
10	250	12	7/8	100	115	1	M24	24
12	300	12	7/8	100	120	1	M24	37
14	350	12	1	115	135	1 1/8	M27	50
16	400	16	1	115	135	1 1/8	M27	64
18	450	16	1 1/8	125	145	1 1/4	M30	68
20	500	20	1 1/8	140	160	1 1/4	M30	82
24	600	20	1 1/4	150	170	1 3/8	M33	118

Advantages of using ANSI ASME B16.5 Class 150 Weldneck Flanges

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Weldneck flanges offer several advantages over other types of flanges, such as slip-on flanges. Here are some of the benefits of using weldneck flanges:

Superior Strength
Weldneck flanges have a long tapered hub that provides additional strength to the connection between the pipe and the flange. The welding process creates a permanent and durable bond that can withstand high pressure and extreme temperatures.

Versatility in Accommodating Different Pipe Sizes
Weldneck flanges are available in various sizes, making them suitable for use with pipes of different diameters. The flanges can also be used with pipes of different materials, such as stainless steel, carbon steel, and alloy steel.

Secure and Leak-Free Connection
The welding process creates a strong and leak-free connection between the pipe and the flange. This ensures that the piping system is safe and efficient, reducing the risk of leaks and other safety hazards.

Easy to Install and Maintain
Weldneck flanges are relatively easy to install, and the welding process can be completed quickly. The flanges are also easy to maintain, requiring only periodic inspection and maintenance to ensure that they are in good working condition.

Applications of ANSI ASME B16.5 Class 150 Weldneck Flange

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Weldneck flanges are used in various industrial piping applications, including:

Oil and Gas Industry
Weldneck flanges are commonly used in oil and gas piping systems, where they are used to transport crude oil, natural gas, and other petroleum products.

Chemical Processing Industry
Weldneck flanges are used in chemical processing plants to transport various chemicals and materials.

Water Treatment Industry
Weldneck flanges are used in water treatment plants to transport water and other fluids.

Power Generation Industry
Weldneck flanges are used in power generation plants to transport steam, gas, and other fluids.

Price List of Weldneck Flanges

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Prices for ANSI ASME B16.5 Class 150 Weldneck Flanges are very affordable.

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WELD NECK FLANGE ANSI / ASME B16.5

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