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ASME/ANSI B16.5 Class 300 TH

NominalPipeSizeOutsideDiameterofFlangeDiameterofRaisedFaceThicknessofFlangesMin.DiameterofHubLengthThroughHubThreadLengthThreadedMin.BoreCounter-boreThreadedFlange,Min.DiameterofBoltCircleDiameterofBo...

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Nominal Pipe Size	Outside Diameter of Flange	Diameter of Raised Face	Thickness of Flanges Min.	Diameter of Hub	Length Through Hub	Thread Length Threaded Min.	Bore	Counter-bore Threaded Flange, Min.	Diameter of Bolt Circle	Diameter of Bolt Holes	Number of Bolts	Approxi-mate Weight kgs
NPS	O	R	tf	X	Y	T	B	Q	W	I	n
1/2	95	34.9	12.7	38	21	16	22.2	23.6	66.7	15.9	4	0.65
3/4	115	42.9	14.3	48	24	16	27.7	29.0	82.6	19.1	4	1.08
1	125	50.8	15.9	54	25	18	34.5	35.8	88.9	19.1	4	1.39
1 1/4	135	63.5	17.5	64	25	21	43.2	44.4	98.4	19.1	4	1.74
1 1/2	155	73.0	19.1	70	29	23	49.5	50.3	114.3	22.2	4	2.49
2	165	92.1	20.7	84	32	29	61.9	63.5	127.0	19.1	8	2.90
2 1/2	190	104.8	23.9	100	37	32	74.6	76.2	149.2	22.2	8	4.35
3	210	127.0	27.0	117	41	32	90.7	92.2	168.3	22.2	8	5.89
3 1/2	230	139.7	28.6	133	43	37	103.4	104.9	184.2	22.2	8	7.48
4	255	157.2	30.2	146	46	37	116.1	117.6	200.0	22.2	8	9.77
5	280	185.7	33.4	178	49	43	143.8	144.4	235.0	22.2	8	12.31
6	320	215.9	35.0	206	51	47	170.7	171.4	269.9	22.2	12	16.07
8	380	269.9	39.7	260	60	51	221.5	222.2	330.2	25.4	12	24.07
10	445	323.8	46.1	321	65	56	276.2	276.2	387.4	28.6	16	34.38
12	520	381.0	49.3	375	71	61	327.0	328.6	450.8	31.8	16	49.80
14	585	412.8	52.4	425	75	64	359.2	360.4	514.4	31.8	20	70.12
16	650	469.9	55.6	483	81	69	410.5	411.2	571.5	34.9	20	89.56
18	710	533.4	58.8	533	87	70	461.8	462.0	628.6	34.9	24	108.10
20	775	584.2	62.0	587	94	74	513.1	512.8	685.8	34.9	24	134.87
24	915	692.2	68.3	702	105	83	616.0	614.4	812.8	41.3	24	202.58