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ANSI B16.5 150LB Weld Neck Flanges

LT-F04

Delivery FOB

minimum order 5 pieces

Supply Ability 36500pieces / Day

Stock Time 45Day

Quantity:

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What is Butt Welding Flange?

Butt Welding flange is also called high neck flange. It differs from flat welding flange in that there is a long and inclined high neck from the flange welding side to the flange. The wall thickness of this high neck along with the height and the direction gradually transitions to the thickness of the pipe wall, which improves the discontinuity of stress and thus increases the flange strength.

Butt-welded flanges are mainly used in places with severe working conditions, such as where the pipe undergoes thermal expansion or other loads that cause the flange to undergo greater stress or repeated stress changes; pipes with large fluctuations in pressure and temperature or high temperature, high pressure, and Sub-zero temperature pipes.

ANSI B16.5 150LB Weld Neck Flanges

Size		Pipe OD A	OD	Bolt Circle	Bolt Hole	Sealing Face		Thickness	ID	H	T
Inch	DN			BC	B	R	RF	T1
1/2"	15	21.3	90	60.5	16x4	35	1.6	9.9	15.5	30	48
3/4"	20	26.9	100	70	16x4	43	1.6	11.4	21	38	52
1"	25	33.7	110	79.5	16x4	51	1.6	12.9	27	49	56
11/4"	32	42.4	115	89	16x4	63.5	1.6	14.4	35	59	57
11/2"	40	48.3	125	98.5	16x4	73	1.6	15.9	41	65	62
2"	50	60.3	150	120.5	18x4	92	1.6	17.9	52	78	64
21/2"	65	76.1	180	139.5	18x4	105	1.6	20.9	66	90	70
3"	80	88.9	190	152.5	18x4	127	1.6	22.4	77.5	108	70
4"	100	114.3	230	190.5	18x8	157.5	1.6	22.4	101.5	135	76
5"	125	139.7	255	216	22x8	186	1.6	22.4	127	164	89
6"	150	168.3	280	241.5	22x8	216	1.6	23.9	154	192	89
8"	200	219.1	345	298.5	22x8	270	1.6	27.4	203	246	102
10"	250	273	405	362	26x12	324	1.6	28.9	255	305	102
12"	300	323.9	485	432	26x12	381	1.6	30.4	303.5	365	114
14"	350	355.6	535	476	29.5x12	413	1.6	33.4	333.5	400	127
16"	400	406.4	595	540	29.5x16	470	1.6	35.4	381	457	127
18"	450	457	635	578	32.5x16	533.5	1.6	38.4	428.5	505	140
20"	500	508	700	635	32.5x20	584	1.6	41.4	476	559	145
22"	550	559	750	692	35.5x20	641	1.6	44.4	525	610	149
24"	600	610	815	749.5	35.5x20	692	1.6	46.4	575	664	152