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Parameters and character

标准号 Standard No.	通径范围 Diameter Range	压力等级 Pressure Rating	常用材料 Conventional Materials
ASME B16.5	1/2~24"	CLASS 150 300 600 900 1500 2500	ASTM A182 F304 F304L F321 F316 F316L F51 F55 F60 F316Ti F310 F317L F347H
ANSI B 16.47	26~60"	CLASS 150 300 600 900
AWWA C207	4~144"	CLASS 86 175-150 275 300
ISO7005-1	1/2~24"	PN 2.0 5.0 11.0 15.0 26.0 42.0
BS4504-3.1	1/2~24"	CLASS 150 300 600 900 1500 2500
NF E29-203	1/2~24"	PN 2.0 5.0 11.0 15.0 26.0 42.0
API605	26~60"	CLASS 150 300 600
ASME B 16.36	1/2~24"	CLASS 300 400 600 900 1500 2500

ASME B16.5 CLASS 150 PIPE FLANGES
Dimensions in mm

Nominal Pipe Size	Outside Diameter	Thickness	Thickness of Lap Joint	Raised Face Diameter	Corner Radius of Bore of Lap Joint	Bore			Length thru hub			Thread Length Threaded Flange (Min)	Depth of Socket	Diameter Hub at Bevel
	Outside Diameter	Thickness	Thickness of Lap Joint	Raised Face Diameter	Corner Radius of Bore of Lap Joint	Welding Neck Socket Welding	Slip-On Socket Welding	Lap Joint	Welding Neck	Slip-on Threaded Socket Welding	Lap Joint	Thread Length Threaded Flange (Min)	Depth of Socket	Diameter Hub at Bevel
	o	c	C1	R	r	B1	B2	B3	Y1	Y2	Y3	T	D	A
¹/2	90	9.6	11.2	34.9	3.0	15.8	22.2	22.9	46.0	14.0	16.0	16.0	10.0	21.3
³/4	100	11.2	12.7	42.9	3.0	20.9	27.7	28.2	51.0	14.0	16.0	16.0	11.0	26.7
1	110	12.7	14.3	50.8	3.0	26.6	34.5	34.9	54.0	16.0	17.0	17.0	13.0	33.4
1 ¹/4	115	14.3	15.9	63.5	5.0	35.1	43.2	43.7	56.0	19.0	21.0	21.0	14.0	42.2
1 ¹/2	125	15.9	17.5	73.0	6.0	40.9	49.5	50.0	60.0	21.0	22.0	22.0	16.0	48.3
2	150	17.5	19.1	92.1	8.0	52.5	61.9	62.5	62.0	24.0	25.0	25.0	17.0	60.3
2 ¹/2	180	20.7	22.3	104.8	8.0	62.7	74.6	75.4	68.0	27.0	29.0	29.0	19.0	73.0
3	190	22.3	23.9	127.0	10.0	77.9	90.7	91.4	68.0	29.0	30.0	30.0	21.0	88.9
3 ¹/2	215	22.3	23.9	139.7	10.0	90.1	103.4	104.1	70.0	30.0	32.0	32.0	22.4	101.6
4	230	22.3	23.9	157.2	11.0	102.3	116.1	116.8	75.0	32.0	33.0	33.0	24.0	114.3
5	255	22.3	23.9	185.7	11.0	128.2	143.8	144.4	87.0	35.0	36.0	36.0	24.0	141.3
6	280	23.9	25.4	215.9	13.0	154.1	170.7	171.4	87.0	38.0	40.0	40.0	27.0	168.3
8	345	27.0	28.6	269.9	13.0	202.7	221.5	222.2	100.0	43.0	44.0	44.0	32.0	219.1
10	405	28.6	30.2	323.8	13.0	254.6	276.2	277.4	100.0	48.0	49.0	49.0	33.0	273.0
12	485	30.2	31.8	381.0	13.0	304.8	327.0	328.2	113.0	54.0	56.0	56.0	40.0	323.8
14	535	33.4	35.0	412.8	13.0	To be specified by purchaser	359.2	360.2	125.0	56.0	79.0	57.0	41.4	355.6
16	595	35.0	36.6	469.9	13.0		410.5	411.2	125.0	62.0	87.0	64.0	44.5	406.4
18	635	38.1	39.7	533.4	13.0		461.8	462.3	138.0	67.0	97.0	68.0	49.0	457.0
20	700	41.3	42.9	584.2	13.0		513.1	514.4	143.0	71.0	103.0	73.0	54.0	508.0
24	815	46.1	47.7	692.2	13.0		616.0	616.0	151.0	81.0	111.0	83.0	60.5	610.0

Dimensions in mm

Hub Diameter	Drilling			Approximate Weight										Nominal Pipe Size
Hub Diameter	Bolt Circle Diameter Holes	Diameter of Bolt Holes	Number of Bolt	Welding Neck		Slip On Threaded		Lap Joint		Blind		Socket Welding
X	Bolt Circle Diameter Holes	Diameter of Bolt Holes	Number of Bolt	Kg	lb	Kg	lb	Kg	lb	Kg	lb	Kg	lb
30	60.3	15.9	4	0.51	1.1	0.47	1	0.51	1	0.47	1	0.47	1	¹/2
38	69.9	15.9	4	0.73	1.6	0.58	1.3	0.64	1.4	0.63	1.4	0.59	1.3	³/4
49	79.4	15.9	4	1.07	2.4	0.86	1.9	0.93	1.8	0.94	2.1	0.87	1.9	1
59	88.9	15.9	4	1.4	3.1	1.08	2.4	1.16	2	1.23	2.7	1.11	2.4	1 ¹/4
65	98.4	15.9	4	1.81	4	1.41	3.1	1.51	3.3	1.62	3.6	1.45	3.2	1 ¹/2
78	120.7	19.1	4	2.59	5.7	2.26	5	2.38	5.2	2.64	5.8	2.33	5	2
90	139.7	19.1	4	4.28	9.4	3.43	7.6	3.6	7.9	4.06	9	3.55	7.8	2 ¹/2
108	152.4	19.1	4	5.18	11.4	3.87	8.5	4.04	8.9	4.9	10.8	4.02	8.9	3
122	177.8	19.1	8	5.45	12	4.99	11	4.99	11	5.9	13	4.99	11	3 ¹/2
135	190.5	19.1	8	7.32	16.1	5.75	12.7	5.96	13	7.41	16.3	5.99	13.2	4
164	215.9	22.2	8	8.91	19.6	6.22	13.7	6.44	14	8.76	19.3	6.68	14.7	5
192	241.3	22.2	8	11.26	24.8	7.38	16.3	7.59	16.7	11.31	24.9	7.99	17.6	6
246	298.5	22.2	8	17.68	39	12.36	27.3	12.66	27.9	19.92	43.9	13.29	29.3	8
305	362	25.4	12	24.79	54.7	17.1	37.7	16.78	37	29.39	64.8	19.5	43	10
365	431.8	25.4	12	38.98	85.9	27.68	61	28.3	36.4	43.7	96.3	29.03	64	12
400	476.3	28.6	12	51.71	114	35.2	77.6	41.5	91.5	59.42	140	38.56	85	14
457	539.8	28.6	16	64.41	142	42.18	93	52.98	116.8	77.11	170	44.49	98	16
505	577.9	31.8	16	74.84	165	49.71	109.6	59	130	94.8	209	54.43	120	18
559	635	31.8	20	89.36	197	65.5	140	72.12	159	123.38	272	70.31	155	20
663	749.3	34.9	20	119.66	263.8	90.5	199.5	99.02	218.3	188.24	415	95.25	210	24

NOTES
1. Raised face height (f=2.0mm) not included in thickness (C) and length through hub (Y1, Y2)
2. For Slip-on, Threaded, Socket-Welding, lab Joint flanges, the hub shall be tapered 7° max. or vertical from base to top.
3. Blind Flanges may be made with the same hub as that used for Slip-On flanges or without hub.

ASME B16.5 CLASS 300 PIPE FLANGES

Dimensions in mm

Nominal Pipe Size	Outside Diameter	Thickness	Thickness of Lap Joint	Raised Face Diameter	Corner Radius of Bore of Lap Joint	Bore			Diameter Counter Bore Threaded	Length thru hub			Thread Length Threaded Flange (Min)	Depth of Socket
	Outside Diameter	Thickness	Thickness of Lap Joint	Raised Face Diameter	Corner Radius of Bore of Lap Joint	Welding Neck Socket Welding	Slip-On Socket Welding	Lap Joint	Diameter Counter Bore Threaded	Welding Neck	Slip-on Threaded Socket Welding	Lap Joint	Thread Length Threaded Flange (Min)	Depth of Socket
	o	c	C1	R	r	B1	B2	B3	Q	Y1	Y2	Y3	T	D
¹/2	95	12.7	14.3	34.9	3	15.8	22.2	22.9	23.6	51	21	22	16	10
³/4	115	14.3	15.9	42.9	3	20.9	27.7	28.2	29	56	24	25	16	11
1	125	15.9	17.5	50.8	3	26.6	34.5	34.9	35.8	60	25	27	18	13
1 ¹/4	135	17.5	19.1	63.5	5	35.1	43.2	43.7	44.4	64	25	27	21	14
1 ¹/2	155	19.1	20.7	73	6	40.9	49.5	50	50.3	67	29	30	23	16
2	165	20.7	22.3	92.1	8	52.5	61.9	62.5	63.5	68	32	33	29	17
2 ¹/2	190	23.9	25.4	104.8	8	62.7	74.6	75.4	76.2	75	37	38	32	19
3	210	27	28.6	127	10	77.9	90.7	91.4	92.2	78	41	43	32	21
3 ¹/2	230	28.6	30.2	139.7	10	90.1	103.4	104.1	104.9	79	43	44	37	---
4	255	30.2	31.8	157.2	11	102.3	116.1	116.8	117.6	84	46	48	37	---
5	280	33.4	35	185.7	11	128.2	143.8	144.4	144.4	97	49	51	43	---
6	320	35	36.6	215.9	13	154.1	170.7	171.4	171.4	97	51	52	47	---
8	380	39.7	41.3	269.9	13	202.7	221.5	222.2	222.2	110	60	62	51	---
10	445	46.1	47.7	323.8	13	254.6	276.2	277.4	276.2	116	65	95	56	---
12	520	49.3	50.8	381	13	304.8	327	328.2	328.6	129	71	102	61	---
14	585	52.4	54	412.8	13	To be specified by purchaser	359.2	360.2	360.4	141	75	111	64	---
16	650	55.6	57.2	469.9	13		410.5	411.2	411.2	144	81	121	69	---
18	710	58.8	60.4	533.4	13		461.8	462.3	462	157	87	130	70	---
20	775	62	63.5	584.2	13		513.1	514.4	512.8	160	94	140	74	---
24	915	68.3	63.9	692.2	13		616	616	614.4	167	105	152	83	---

Dimensions in mm

Diameter Hub at Bevel	Hub Diameter	Drilling			Approximate Weight										Nominal Pipe Size
Diameter Hub at Bevel	Hub Diameter	Bolt Circle Diameter Holes	Diameter of Bolt Holes	Number of Bolt	Welding Neck		Slip On Threaded		Lap Joint		Blind		Socket Welding
A	X	Bolt Circle Diameter Holes	Diameter of Bolt Holes	Number of Bolt	kg	lb	kg	lb	kg	lb	kg	lb	kg	lb
21.3	38	66.7	15.9	4	0.78	1.7	0.62	1.4	0.61	1.3	0.62	1.4	0.62	1.4	¹/2
26.7	48	82.6	19.1	4	1.34	3	1.15	2.5	1.15	2.5	1.16	2.5	1.19	2.6	³/4
33.4	54	88.9	19.1	4	1.64	3.6	1.39	3.1	1.38	3	1.42	3	1.44	3.2	1
42.2	64	98.4	19.1	4	2.06	4.5	1.67	3.7	1.66	3.7	1.79	3.9	1.73	3.8	1 ¹/4
48.3	70	114.3	22.2	4	3.06	6.7	2.53	5.6	2.52	5.6	2.68	5.9	2.62	5.8	1 ¹/2
60.3	84	127	19.1	8	3.4	7.5	2.8	6.2	2.79	6.2	3.09	6.8	2.94	6.5	2
73	100	149.2	22.2	8	5.31	11.7	4.25	9.4	4.22	9.3	4.75	10.5	4.49	9.9	2 ¹/2
88.9	117	168.3	22.2	8	7.32	16.1	5.81	12.8	5.78	12.7	6.79	14.9	6.2	13.7	3
101.6	133	184.2	22.2	8	8.17	18	7.72	17	7.72	17	9.53	21			3 ¹/2
114.3	146	200	22.2	8	11.3	24.9	10.13	22.3	10.07	22.2	12	26.5			4
141.3	178	235	22.2	8	15.12	33.3	12.58	27.7	12.52	27.6	15.96	35.2			5
168.3	206	269.9	22.2	12	19.68	43.4	16.04	35.4	15.95	35.2	21.2	46.7			6
219.1	260	330.2	25.4	12	30.48	67.2	24.5	54	24.37	53.7	34.6	76.3			8
273	321	387.4	28.6	16	43.74	96.4	34.16	75.3	39.92	88	55.34	122			10
323.8	375	450.8	31.8	16	64.41	142	51.26	113	58.7	129.4	78.9	174			12
355.6	425	514.4	31.8	20	88.3	94.7	72.12	159	83.46	184	107.05	236			14
406.4	483	571.5	34.9	20	112.94	249	90.4	199.3	106.14	234	139.25	307			16
457	533	628.6	34.9	24	138.34	305	109	240.3	133.95	295.3	176.9	396			18
508	587	685.8	34.9	24	167.37	369	136	300	157.65	347.6	223.17	492			20
610	702	812.8	41.3	24	235.41	519	204	449.7	240.4	530	342	754			24

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