400 Class Series A Weldneck Flanges Dimension

Dimensions for Welding Neck Flanges 400 Class, Series A

400 lb/sq. in

Weld Neck flanges as per ASME B16.47/ANSI B16.47 400#/400 LBS in mm

Pipe		Flange				Hub		Raised face	Drilling Template			Approx Weight
Nom.	OD	D	J	b	h	a	m	g	Number	I	k
Size	mm	mm	mm	mm	mm	mm	mm	mm		mm	mm	Killo
26''	660.4	971.5	To be	88.9	193.7	To be	727.1	749.3	28	47.6	876.3	Wts. on
28"	711.2	1035.0	specified by	95.2	206.4	specified	782.6	800.1	28	50.8	939.8	Application
30"	762.0	1092.2	purchaser	101.6	219.1	by purchaser	836.6	857.2	28	54.0	996.9
32"	812.8	1149.3		107.9	231.8		889.0	914.4	28	54.0	1054.1
34"	863.6	1206.5		111.1	241.3		944.6	965.2	28	54.0	1104.9
36"	914.4	1270.0		114.3	250.8		1000.1	1022.3	32	54.0	1168.4
38"	965.2	1206.5		123.8	206.3		1003.3	1035.0	32	47.6	1117.6
40"	1016.0	1270.0		130.1	215.9		1054.1	1092.2	32	50.8	1174.7
42"	1066.8	1320.8		133.3	223.8		1108.0	1143.0	32	50.8	1225.5
44"	1117.6	1384.3		139.7	233.3		1158.8	1200.1	32	53.9	1282.7
46"	1168.4	1441.4A		146.0	244.0		1212.8	1257.3	36	53.9	1339.8
48"	1219.2	1511.3		152.4	257.1		1266.8	1308.1	28	60.3	1403.3
50"	1270.0	1568.4		157.2	268.2		1320.8	1362.0	32	60.3	1460.5
52"	1320.8	1619.2		161.9	276.2		1371.6	1412.8	32	60.3	1511.3
54"	1371.6	1701.8		169.9	288.9		1425.5	1470.0	28	66.6	1581.1
56"	1422.4	1752.6		174.6	298.4		1479.5	1527.1	32	66.6	1631.9
58"	1473.2	1803.4		177.8	306.3		1530.3	1577.9	32	66.6	1682.7
60"	1524.0	1885.9		185.7	319.0		1584.3	1635.1	32	73.0	1752.6

Weld Neck flanges as per ASME B16.47/ANSI B16.47 400#/400 LBS in inches

Pipe		Flange				Hub		Raised face	Drilling Template			Approx Weight
Nom.	OD	D	J	b	h	a	m	g	Number	I	k
Size	in.	in.	in.	in.	in.	in.	in.	in.		in.	in.	Pounds
26''	26.0	38^1/4	To be	3^1/2	7^5/8	To be	28^5/8	29^1/2	28	1^7/8	34^1/2	Wts. on
28"	28.0	40^1/4	specified by	3^3/4	8^1/8	specified by	30^13/16	31^1/2	28	2	37	Application
30"	30.0	43	purchaser	4	8^5/8	purchaser	32^15/16	33^3/4	28	2^1/8	39^1/4
32"	32.0	45^1/4		4^1/4	9^1/8		35	36	28	2^1/8	41^1/2
34"	34.0	47^1/2		4^3/8	9^1/2		37^3/16	38	28	2^1/8	43^1/2
36"	36.0	50		4^1/2	9^7/8		39^1/8	40^1/4	32	2^1/8	46
38"	38.0	47^1/2		4^7/8	8^1/18		39^1/2	40^3/4	32	1^7/8	44
40"	40.0	50		5^1/8	8^1/2		41^1/2	43	32	2	46^1/4
42"	42.0	52		5^1/4	8^13/16		43^5/8	45	32	2	48^1/4
44"	44.0	54^1/2		5^1/2	9^13/16		45^5/8	47^1/4	32	2^1/8	50^1/2
46"	46.0	56^3/4		5^3/4	9^5/8		47^3/4	49^1/2	36	2^1/8	52^3/4
48"	48.0	59^1/2		6	10^1/8		49^7/8	51^1/2	28	2^3/8	55^1/4
50"	50.0	61^3/4		6^3/16	10^9/16		52	53^5/8	32	2^3/8	57^1/2
52"	52.0	63^3/4		6^3/8	10^7/8		54	55^5/8	32	2^3/8	59^1/2
54"	54.0	67		6^11/16	11^3/8		56^1/8	57^7/8	28	2^5/8	62^1/4
56"	56.0	69		6^7/8	11^3/4		58^1/4	60^1/8	32	2^5/8	64^1/4
58"	58.0	71		7	12^1/16		60^1/4	62^1/8	32	2^5/8	66^1/4
60"	60.0	74^1/4		7^5/16	12^9/16		62^3/8	64^3/8	32	2^7/8	69

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