ANSI ASME B16.5 CLASS 2500 WELD NECK FLANGES

Class 2500 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	135	30.2	43	21.3	73	According to Schedule	34.9	7	88.9	1.6
3/4	20	140	31.8	51	26.7	79		42.9	7	95.2	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
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
3	80	305	66.7	133	88.9	168		127	7	228.6	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
10	250	675	165.1	375	273	419		323.8	7	539.8	1.6
12	300	760	184.2	441	323.8	464		381	7	619.1	1.6

Class 2500 Weld Neck Flange Stud & Bolt Dimesions

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Size in Inch	Size in mm	No of Bolts	Bolt Size UNC	RF Stud Length	Hole Size	ISO Stud Size	Weight in kg
1/2	15	4	3/4	120	7/8	M20	3.3
3/4	20	4	3/4	125	7/8	M20	3.7
1	25	4	7/8	140	1	M24	5.5
1 1/4	32	4	1	150	1 1/8	M27	7.8
1 1/2	40	4	1 1/8	170	1 1/4	M30	11.5
2	50	8	1	180	1 1/8	M27	19
2 1/2	65	8	1 1/8	195	1 1/4	M30	24
3	80	8	1 1/4	220	1 3/8	M33	42.8
4	100	8	1 1/2	255	1 5/8	M39	66
5	125	8	1 3/4	300	1 7/8	M45	111
6	150	8	2	345	2 1/8	M52	173
8	200	12	2	380	2 1/8	M52	264
10	250	12	2 1/2	490	2 5/8	M64	490
12	300	12	2 3/4	540	2 7/8	M72	695

Advantages of using ANSI ASME B16.5 Class 2500 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 2500 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 2500 Weldneck Flanges are very affordable.

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WELD NECK FLANGE ANSI / ASME B16.5

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