LARGE DIAMETER FLANGES SERIES A / MSS SP44 ASME B16.47 Class 900

SERIES A FLANGES

Nominal Size NPS		Outside Diameter of Flange	Thickness of Flange		Length thru Hub	Diameter Of Hub At Base	Diameter Of Hub At Point of Welding	Diameter Of Raised Face	Diameter of Bolt Circle	Number of Bolt Holes	Diameter of Bolt Holes	Diameter of Bolts	Fillet Radius Min
			WNF	BLIND
		O	C	C	Y	X	A	R					r1
26	in.	42.75	5.5	6.31	11.25	30.5	26	29.5	37.5	20	2.88	2 ¾	0.44
	mm	1085.9	139.7	160.3	285.8	774.7	660.4	749.3	952.5		73.2	69.9	11.2
28	in.	46	5.62	6.75	11.75	32.75	28	31.5	40.25	20	3.12	3	0.5
	mm	1168.4	142.7	171.5	298.5	831.9	711.2	800.1	1022.4		79.2	76.2	12.7
30	in.	48.5	5.88	7.18	12.25	35	30	33.75	42.75	20	3.12	3	0.5
	mm	1231.9	149.4	182.4	311.2	889	762	857.3	1085.9		79.2	76.2	12.7
32	in.	51.75	6.25	7.62	13	37.25	32	36	45.5	20	3.38	3 ¼	0.5
	mm	1314.5	158.8	193.5	330.2	946.2	812.8	914.4	1155.7		85.9	82.6	12.7
34	in.	55	6.5	8.06	13.75	39.62	34	38	48.25	20	3.62	3 ½	0.56
	mm	1397	165.1	204.7	349.3	1006.3	863.6	965.2	1225.6		91.9	88.9	14.2
36	in.	57.5	6.75	8.44	14.25	41.88	36	40.25	50.75	20	3.62	3 ½	0.56
	mm	1460.5	171.5	214.4	362	1063.8	914.4	1022.4	1289.1		91.9	88.9	14.2
38	in.	57.5	7.5	8.5	13.88	42.25	38	43.25	50.75	20	3.62	3 ½	0.75
	mm	1460.5	190.5	215.9	352.6	1073.2	965.2	1098.6	1289.1		91.9	88.9	19.1
40	in.	59.5	7.75	8.81	1431	44.38	40	45.75	52.75	24	3.62	3 ½	0.81
	mm	1511.3	196.9	223.8	363 5	1127.3	1016	1162.1	1339.9		91.9	88.9	20.6
42	in.	61.5	8.12	9.12	14.62	46.31	42	47.75	54.75	24	3.62	3 ½	0.81
	mm	1562.1	206.2	231.6	371.3	1176.3	1066.8	1212.9	1390.7		91.9	88.9	20.6
44	in.	64.88	8.44	9.56	15.38	48.62	44	50	57.62	24	3.88	3 ¼	0.88
	mm	1648	214.4	242.8	390.7	1234.9	1117.6	1270	1463.5		98.6	95.3	22.4
46	in.	68.25	8.88	10.86	16.18	50.88	46	52.5	60.5	24	4.12	4	0.88
	mm	1733.6	225.6	275.8	411	1292.4	1168.4	1333.5	1536.7		104.6	101.6	22.4
48	in.	70.25	9.19	10.38	16.5	52.88	48	54.5	62.5	24	4.12	4	0.94
	mm	1784.4	233.4	263.7	419.1	1343.2	1219.2	1384.3	1587.5		104.6	101.6	23.9

(1) Bore diameter to be specified by the purchaser.