Jiangsu Changshu LongTeng Special Steel Co., Ltd

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Flat welding flange with neck

Neck flat welded flanges are called flat welded steel pipe flanges with necks. They are flanges that extend steel pipes, pipe fittings, etc. into the flange and connect them to equipment or pipelines through fillet welds. Flat-welded flanges with necks are also flat-welded flanges, because they have a short neck, which increases the strength of the flange and improves the load-bearing strength of the flange. So it can be used in higher pressure pipelines.

Retail price

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Yuan

Market price

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Yuan

Number of views:

1000

Product serial number

Category

Oil gas pipe fitting

Quantity

Stock:



Product description

[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[产品参数, 参数]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]

Product parameter

HG/T 20592-2009 PN6 with neck flat welding steel pipe flange
Nominal size DN	Outer diameter of steel pipe A1		Connection size					Flange thickness C	Flange inner diameter B1		Flange neck			Flange height H
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	N		R
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	A	B	R
10	17.2	14	75	50	11	4	M10	12	18	15	25	25	4	20
15	21.3	18	80	55	11	4	M10	12	22.5	19	30	30	4	20
20	26.9	25	90	65	11	4	M10	14	27.5	26	40	40	4	24
25	33.7	32	100	75	11	4	M10	14	34.5	33	50	50	4	24
32	42.4	38	120	90	14	4	M12	14	43.5	39	60	60	6	26
40	48.3	45	130	100	14	4	M12	14	49.5	46	70	70	6	26
50	60.3	57	140	110	14	4	M12	14	61.5	59	80	80	6	28
65	76.1	76	160	130	14	4	M12	14	77.5	78	100	100	6	32
80	88.9	89	190	150	18	4	M16	16	90.5	91	110	110	8	34
100	114.3	108	210	170	18	4	M16	16	116	110	130	130	8	40
125	139.7	133	240	200	18	8	M16	18	143.5	135	160	160	8	44
150	168.3	159	265	225	18	8	M16	18	170.5	161	185	185	10	44
200	219.1	219	320	280	18	8	M16	20	221.5	222	240	240	10	44
250	273	273	375	335	18	12	M16	22	276.5	276	295	295	12	44
300	323.9	325	440	395	22	12	M20	22	328	328	355	355	12	44
HG/T 20592-2009 PN10 flat welded steel pipe flange with neck
Nominal size DN	Outer diameter of steel pipe A1		Connection size					Flange thickness C	Flange inner diameter B1		Flange neck			Flange height H	Groove width b
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	N		R
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	A	B	R
10	17.2	14	90	60	14	4	M12	16	18	15	30	30	4	22	-
15	21.3	18	95	65	14	4	M12	16	22.5	19	35	35	4	22	-
20	26.9	25	105	75	14	4	M12	18	27.5	26	45	45	4	26	-
25	33.7	32	115	85	14	4	M12	18	34.5	33	52	52	4	28	-
32	42.4	38	140	100	18	4	M16	18	43.5	39	60	60	6	30	-
40	48.3	45	150	110	18	4	M16	18	49.5	46	70	70	6	32	-
50	60.3	57	165	125	18	4	M16	18	61.5	59	84	84	5	28	-
65	76.1	76	185	145	18	8	M16	18	77.5	78	104	104	6	32	-
80	88.9	89	200	160	18	8	M16	20	90.5	91	118	118	6	34	-
100	114.3	108	220	180	18	8	M16	20	116	110	140	140	8	40	-
125	139.7	133	250	210	18	8	M16	22	143.5	135	168	168	8	44	-
150	168.3	159	285	240	22	8	M20	22	170.5	161	195	195	10	44	-
200	219.1	219	340	295	22	8	M20	24	221.5	222	246	246	10	44	-
250	273	273	395	350	22	12	M20	26	276.5	276	298	298	12	46	-
300	323.9	325	445	400	22	12	M20	26	328	328	350	350	12	46	-
350	355.6	377	505	460	22	16	M20	26	360	381	400	412	12	53	-
400	406.4	426	565	515	26	16	M24	26	411	430	456	475	12	57	-
450	457	480	615	565	26	20	M24	28	462	485	502	525	12	63	12
500	508	530	670	620	26	20	M24	28	513.5	535	559	581	12	67	12
600	610	630	780	725	30	20	M27	28	616.5	636	658	678	12	75	12
HG/T 20592-2009 PN16 flat welded steel pipe flange with neck
Nominal size DN	Outer diameter of steel pipe A1		Connection size					Flange thickness C	Flange inner diameter B1		Flange neck			Flange height H	Groove width b
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	N		R
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	A	B	R
10	17.2	14	90	60	14	4	M12	16	18	15	30	30	4	22	4
15	21.3	18	95	65	14	4	M12	16	22.5	19	35	35	4	22	4
20	26.9	25	105	75	14	4	M12	18	27.5	26	45	45	4	26	4
25	33.7	32	115	85	14	4	M12	18	34.5	33	52	52	4	28	5
32	42.4	38	140	100	18	4	M16	18	43.5	39	60	60	6	30	5
40	48.3	45	150	110	18	4	M16	18	49.5	46	70	70	6	32	5
50	60.3	57	165	125	18	4	M16	18	61.5	59	84	84	5	28	5
65	76.1	76	185	145	18	8	M16	18	77.5	78	104	104	6	32	6
80	88.9	89	200	160	18	8	M16	20	90.5	91	118	118	6	34	6
100	114.3	108	220	180	18	8	M16	20	116	110	140	140	8	40	6
125	139.7	133	250	210	18	8	M16	22	143.5	135	168	168	8	44	6
150	168.3	159	285	240	22	8	M20	22	170.5	161	195	195	10	44	6
200	219.1	219	340	295	22	12	M20	24	221.5	222	246	246	10	44	8
250	273	273	405	355	26	12	M24	26	276.5	276	298	298	12	46	10
300	323.9	325	460	410	26	12	M24	28	328	328	350	350	12	46	11
350	355.6	377	520	470	26	16	M24	30	360	381	400	412	12	57	12
400	406.4	426	580	525	30	16	M27	32	411	430	456	475	12	63	12
450	457	480	640	585	30	20	M27	40	462	485	502	525	12	68	12
500	508	530	715	650	33	20	M30	44	513.5	535	559	581	12	73	12
600	610	630	840	770	36	20	M33	54	616.5	636	658	678	12	83	12
HG/T 20592-2009 PN25 flat welded steel pipe flange with neck
Nominal size DN	Outer diameter of steel pipe A1		Connection size					Flange thickness C	Flange inner diameter B1		Flange neck			Flange height H	Groove width b
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	N		R
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	A	B	R
10	17.2	14	90	60	14	4	M12	16	18	15	30	30	4	22	4
15	21.3	18	95	65	14	4	M12	16	22.5	19	35	35	4	22	4
20	26.9	25	105	75	14	4	M12	18	27.5	26	45	45	4	26	4
25	33.7	32	115	85	14	4	M12	18	34.5	33	52	52	4	28	5
32	42.4	38	140	100	18	4	M16	18	43.5	39	60	60	6	30	5
40	48.3	45	150	110	18	4	M16	18	49.5	46	70	70	6	32	5
50	60.3	57	165	125	18	4	M16	20	61.5	59	84	84	6	34	5
65	76.1	76	185	145	18	8	M16	22	77.5	78	104	104	6	38	6
80	88.9	89	200	160	18	8	M16	24	90.5	91	118	118	8	40	6
100	114.3	108	235	190	22	8	M20	24	116	110	145	145	8	44	6
125	139.7	133	270	220	26	8	M24	26	143.5	135	170	170	8	48	6
150	168.3	159	300	250	26	8	M24	28	170.5	161	200	200	10	52	6
200	219.1	219	360	310	26	12	M24	30	221.5	222	256	256	10	52	8
250	273	273	425	370	30	12	M27	32	276.5	276	310	310	12	60	10
300	323.9	325	485	430	30	16	M27	34	328	328	364	364	12	67	11
350	355.6	377	555	490	33	16	M30	38	360	381	418	430	12	72	12
400	406.4	426	620	550	36	16	M33	40	411	430	472	492	12	78	12
450	457	480	670	600	36	20	M33	46	462	485	520	542	12	84	12
500	508	530	730	660	36	20	M33	48	513.5	535	580	602	12	90	12
600	610	630	845	770	39	20	M36×3	58	616.5	636	684	704	12	100	12
HG/T 20592-2009 PN40 flat welded steel pipe flange with neck
Nominal size DN	Outer diameter of steel pipe A1		Connection size					Flange thickness C	Flange inner diameter B1		Flange neck			Flange height H	Groove width b
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	N		R
	A	B	Flange outer diameter D	Bolt hole center circle diameter K	Bolt hole diameter L	Number of bolt holes n (pieces)	Bolt Th		A	B	A	B	R
10	17.2	14	90	60	14	4	M12	16	18	15	30	30	4	22	4
15	21.3	18	95	65	14	4	M12	16	22.5	19	35	35	4	22	4
20	26.9	25	105	75	14	4	M12	18	27.5	26	45	45	4	26	4
25	33.7	32	115	85	14	4	M12	18	34.5	33	52	52	4	28	5
32	42.4	38	140	100	18	4	M16	18	43.5	39	60	60	6	30	5
40	48.3	45	150	110	18	4	M16	18	49.5	46	70	70	6	32	5
50	60.3	57	165	125	18	4	M16	20	61.5	59	84	84	6	34	5
65	76.1	76	185	145	18	8	M16	22	77.5	78	104	104	6	38	6
80	88.9	89	200	160	18	8	M16	24	90.5	91	118	118	8	40	6
100	114.3	108	235	190	22	8	M20	24	116	110	145	145	8	44	6
125	139.7	133	270	220	26	8	M24	26	143.5	135	170	170	8	48	7
150	168.3	159	300	250	26	8	M24	28	170.5	161	200	200	10	52	8
200	219.1	219	375	320	30	12	M27	34	221.5	222	260	260	10	52	10
250	273	273	450	385	33	12	M30	38	276.5	276	312	312	12	60	11
300	323.9	325	515	450	33	16	M30	42	328	328	380	380	12	67	12
350	355.6	377	580	510	36	16	M33	46	360	381	424	444	12	72	13
400	406.4	426	660	585	39	16	M36×3	50	411	430	478	518	12	78	14
450	457	480	685	610	39	20	M36×3	57	462	485	522	545	12	84	16
500	508	530	755	670	42	20	M39×3	57	513.5	535	576	598	12	90	17
600	610	630	890	795	48	20	M45×3	72	616.5	636	686	706	12	100	18

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Plate flat welding flange

Butt welding flange with neck

Business scope :

Oil Gas Pipe Fitting

2020-09-23 18:33

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