flange - Tianjin ZhongHeng Steel

Flange Type:

Welding Neck/Blind/Socket Weld/Lapped Joint/Slip-on/Plate Flange

Standard:

ANSI/ASME B 16.5, DIN, JIS, AWWA, API, ISO etc.

Material:

Carbon Steel — ASTM A105,ASTM A350 LF1,LF2,LF3,A36,ASTM A234 WPB
Stainless Steel — ASTM A403 F304/304L, 316/316L,316Ti,321,317L,310S
Alloy Steel — ASTM A234 WP1/5/9/11/12/22/91

Specification:

NPS from 1/2” to 24”, CLASS from 150 to 2500

Surface:

Light Oiling/Black Painting

Packing:

Packed in Wood Cabins/ Wood Tray

Manufacture Process

Specification

Manufacture Process

Specification

Nominal Pipe Size	Outside Diam. of Flange (O)	Thick. of Flange (C)	Diam. of Raised Face (R)	Diam. of Hub at Base (X)	Length thru Hub (Y)	Min. Thread Length (T)	Min. Counter Bore (Q)	No. of Holes	Diam. of Holes	Diam. of Bolts	Diam. of Bolt Circle	Approx. Weight (in Pounds)
½	3.5	0.44	1.38	1.19	0.62	0.62		4	0.62	0.5	2.38	1
¾	3.88	0.5	1.69	1.5	0.62	0.62		4	0.62	0.5	2.75	2
1	4.25	0.56	2	1.94	0.69	0.69		4	0.62	0.5	3.12	2
1 ¼	4.62	0.62	2.5	2.31	0.81	0.81		4	0.62	0.5	3.5	3
1 ½	5	0.69	2.88	2.56	0.88	0.88		4	0.62	0.5	3.88	3
2	6	0.75	3.62	3.06	1	1		4	0.75	0.62	4.75	5
2 ½	7	0.88	4.12	3.56	1.12	1.12		4	0.75	0.62	5.5	7
3	7.5	0.94	5	4.25	1.19	1.19		4	0.75	0.62	6	8
3 ½	8.5	0.94	5.5	4.81	1.25	1.25		8	0.75	0.62	7	11
4	9	0.94	6.19	5.31	1.31	1.31		8	0.75	0.62	7.5	13
5	10	0.94	7.31	6.44	1.44	1.44		8	0.88	0.75	8.5	15
6	11	1	8.5	7.56	1.56	1.56		8	0.88	0.75	9.5	19
8	13.5	1.12	10.62	9.69	1.75	1.75		8	0.88	0.75	11.75	30
10	16	1.19	12.75	12	1.94	1.94		12	1	0.88	14.25	43
12	19	1.25	15	14.38	2.19	2.19		12	1	0.88	17	64
14	21	1.38	16.25	15.75	2.25	2.25		12	1.12	1	18.75	90
16	23.5	1.44	18.5	18	2.5	2.5		16	1.12	1	21.25	98
18	25	1.56	21	19.88	2.69	2.69		16	1.25	1.13	22.75	130
20	27.5	1.69	23	22	2.88	2.88		20	1.25	1.12	25	165
24	32	1.88	27.25	26.12	3.25	3.25		20	1.38	1.25	29.5	220

Nominal Pipe Size	Outside Diam. of Flange (O)	Thick. of Flange (C)	Diam. of Raised Face (R)	Diam. of Hub at Base (X)	Length thru Hub (Y)	Min. Thread Length (T)	Min. Counter Bore (Q)	No. of Holes	Diam. of Holes	Diam. of Bolts	Diam. of Bolt Circle	Approx. Weight (in Pounds)
1/2	3.75	0.56	1.38	1.5	0.88	0.62	0.93	4	0.62	0.5	2.62	2
3/4	4.62	0.62	1.69	1.88	1	0.62	1.14	4	0.75	0.62	3.25	3
1	4.88	0.69	2	2.12	1.06	0.69	1.41	4	0.75	0.62	3.5	3
1 1/4	5.25	0.75	2.5	2.5	1.06	0.81	1.75	4	0.75	0.62	3.88	4
1 1/2	6.12	0.81	2.88	2.75	1.19	0.88	1.99	4	0.88	0.75	4.5	6
2	6.5	0.88	3.62	3.31	1.31	1.12	2.5	8	0.75	0.62	5	7
2 1/2	7.5	1	4.12	3.94	1.5	1.25	3	8	0.88	0.75	5.88	10
3	8.25	1.12	5	4.62	1.69	1.25	3.63	8	0.88	0.75	6.62	13
3 1/2	9	1.19	5.5	5.25	1.75	1.44	4.13	8	0.88	0.75	7.25	17
4	10	1.25	6.19	5.75	1.88	1.44	4.63	8	0.88	0.75	7.88	22
5	11	1.38	7.31	7	2	1.69	5.69	8	0.88	0.75	9.25	28
6	12.5	1.44	8.5	8.12	2.06	1.81	6.75	12	0.88	0.75	10.62	39
8	15	1.62	10.62	10.25	2.44	2	8.75	12	1	0.88	13	58
10	17.5	1.88	12.75	12.62	2.62	2.19	10.88	16	1.12	1	15.25	81
12	20.5	2	15	14.75	2.88	2.38	12.94	16	1.25	1.12	17.75	115
14	23	2.12	16.25	16.75	3	2.5	14.19	20	1.25	1.12	20.25	165
16	25.5	2.25	18.5	19	3.25	2.69	16.19	20	1.38	1.25	22.5	190
18	28	2.38	21	21	3.5	2.75	18.19	24	1.38	1.25	24.75	250
20	30.5	2.5	23	23.12	3.75	2.88	20.19	24	1.38	1.25	27	315
24	36	2.75	27.25	27.62	4.19	3.25	24.19	24	1.62	1.5	32	475

Nominal Pipe Size	Outside Diam. of Flange (O)	Thick. of Flange (C)	Diam. of Raised Face (R)	Diam. of Hub at Base (X)	Length thru Hub (Y)	Min. Thread Length (T)	Min. Counter Bore (Q)	No. of Holes	Diam. of Holes	Diam. of Bolts	Diam. of Bolt Circle	Approx. Weight (in Pounds)
1/2	3.75	0.56	1.38	1.5	0.88	0.62	0.93	4	0.62	0.5	2.62	2
3/4	4.62	0.62	1.69	1.88	1	0.62	1.14	4	0.75	0.62	3.25	3
1	4.88	0.69	2	2.12	1.06	0.69	1.41	4	0.75	0.62	3.5	4
1 1/4	5.25	0.81	2.5	2.5	1.12	0.81	1.75	4	0.75	0.62	3.88	5
1 1/2	6.12	0.88	2.88	2.75	1.25	0.88	1.99	4	0.88	0.75	4.5	7
2	6.5	1	3.62	3.31	1.44	1.12	2.5	8	0.75	0.62	5	9
2 1/2	7.5	1.12	4.12	3.94	1.62	1.25	3	8	0.88	0.75	5.88	13
3	8.25	1.25	5	4.62	1.81	1.38	3.63	8	0.88	0.75	6.62	16
3 1/2	9	1.38	5.5	5.25	1.94	1.56	4.13	8	1	0.88	7.25	21
4	10.75	1.5	6.19	6	2.12	1.62	4.63	8	1	0.88	8.5	37
5	13	1.75	7.31	7.44	2.38	1.88	5.69	8	1.12	1	10.5	63
6	14	1.88	8.5	8.75	2.62	2	6.75	12	1.12	1	11.5	80
8	16.5	2.19	10.62	10.75	3	2.25	8.75	12	1.25	1.12	13.75	115
10	20	2.5	12.75	13.5	3.38	2.56	10.88	16	1.38	1.25	17	170
12	22	2.62	15	15.75	3.62	2.75	12.94	20	1.38	1.25	19.25	200
14	23.75	2.75	16.25	17	3.69	2.88	14.19	20	1.5	1.38	20.75	230
16	27	3	18.5	19.5	4.19	3.06	16.19	20	1.62	1.5	23.75	330
18	29.25	3.25	21	21.5	4.62	3.12	18.19	20	1.75	1.63	25.75	400
20	32	3.5	23	24	5	3.25	20.19	24	1.75	1.62	28.5	510
24	37	4	27.25	28.25	5.5	3.62	24.19	24	2	1.88	33	730

Nominal Pipe Size	Outside Diam. of Flange (O)	Thick. of Flange (C)	Diam. of Raised Face (R)	Diam. of Hub at Base (X)	Length thru Hub (Y)	Min. Thread Length (T)	Min. Counter Bore (Q)	No. of Holes	Diam. of Holes	Diam. of Bolts	Diam. of Bolt Circle	Approx. Weight (in Pounds)
1/2	4.75	0.88	1.38	1.5	1.25	0.88	0.93	4	0.88	0.75	3.25	4
3/4	5.12	1	1.69	1.75	1.38	1	1.14	4	0.88	0.75	3.5	5
1	5.88	1.12	2	2.06	1.62	1.12	1.41	4	1	0.88	4	8
1 1/4	6.25	1.12	2.5	2.5	1.62	1.19	1.75	4	1	0.88	4.38	9
1 1/2	7	1.25	2.88	2.75	1.75	1.25	1.99	4	1.12	1	4.88	12
2	8.5	1.5	3.62	4.12	2.25	1.5	2.5	8	1	0.88	6.5	25
2 1/2	9.62	1.62	4.12	4.88	2.5	1.88	3	8	1.12	1	7.5	36
3	9.5	1.5	5	5	2.12	1.62	3.63	8	1	0.88	7.5	26
4	11.5	1.75	6.19	6.25	2.75	1.88	4.63	8	1.25	1.12	9.25	53
5	13.75	2	7.31	7.5	3.12	2.12	5.69	8	1.38	1.25	11	83
6	15	2.19	8.5	9.25	3.38	2.25	6.75	12	1.25	1.12	12.5	110
8	18.5	2.5	10.62	11.75	4.00	2.50	8.75	12	1.5	1.38	15.5	170
10	21.5	2.75	12.75	14.5	4.25	2.81	10.88	16	1.5	1.38	18.5	245
12	24	3.12	15	16.5	4.62	3	12.94	20	1.5	1.38	21	325
14	25.25	3.38	16.25	17.75	5.12	3.25	14.19	20	1.62	1.5	22	400
16	27.75	3.5	18.5	20	5.25	3.38	16.19	20	1.75	1.63	24.25	425
18	31	4	21	22.25	6	3.5	18.19	20	2	1.88	27	600
20	33.75	4.25	23	24.5	6.25	3.62	20.19	20	2.12	2	29.5	730
24	41	5.5	27.25	29.5	8	4	24.19	20	2.62	2.5	35.5	1400

Nominal Pipe Size	Outside Diam. of Flange (O)	Thick. of Flange (C)	Diam. of Raised Face (R)	Diam. of Hub at Base (X)	Length thru Hub (Y)	Min. Thread Length (T)	Min. Counter Bore (Q)	No. of Holes	Diam. of Holes	Diam. of Bolts	Diam. of Bolt Circle	Approx. Weight (in Pounds)
1/2	4.75	0.88	1.38	1.5	1.25	0.88	0.93	4	0.88	0.75	3.25	4
3/4	5.12	1	1.69	1.75	1.38	1	1.14	4	0.88	0.75	3.5	5
1	5.88	1.12	2	2.06	1.62	1.12	1.41	4	1	0.88	4	8
1 1/4	6.25	1.12	2.5	2.5	1.62	1.19	1.75	4	1	0.88	4.38	9
1 1/2	7	1.25	2.88	2.75	1.75	1.25	1.99	4	1.12	1	4.88	12
2	8.5	1.5	3.62	4.12	2.25	1.5	2.5	8	1	0.88	6.5	25
2 1/2	9.62	1.62	4.12	4.88	2.5	1.88	3	8	1.12	1	7.5	36

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