B16.47 – Series A/MSS SP44 Flanges – Class 400

Series A/MSS SP44 Flanges

Class 400

Size		O	WNF	BLIND	Y	X	A	R	Diam. of bolt circle	No. of holes	Diam. of bolt hole	Diam. of bolt	R1
			WNF	BLIND
		O	C	C	Y	X	A	R					r1
in.	26″	38.25	3.5	3.88	7.62	28.62	26	29.5	34.5	28	1.88	1 3/4	0.44
mm.		971.6	88.9	98.6	193.5	726.9	660.4	749.3	876.3		47.8	44.5	11.2
in.	28″	40.75	3.75	4.12	8.12	30.81	28	31.5	37	28	2	1 7/8	0.5
mm.		1035.1	95.3	104.6	206.2	782.6	711.2	800.1	939.8		50.8	47.6	12.7
in.	30″	43	4	4.38	8.62	32.94	30	33.75	39.25	28	2.12	2	0.5
mm.		1092.2	101.6	111.3	218.9	836.7	762	857.3	997		53.8	50.8	12.7
in.	32″	45.25	4.25	4.56	9.12	35	32	36	41.25	28	2.12	2	0.5
mm.		1149.4	108	115.8	231.6	889	812.8	914.4	1047.8		53.8	50.8	12.7
in.	34″	47.5	4.38	4.81	9.5	37.19	34	38	43.5	28	2.12	2	0.56
mm.		1206.5	111.3	122.2	241.3	944.6	863.6	965.2	1104.9		53.8	50.8	14.2
in.	36″	50	4.5	5.06	9.88	39.38	36	40.25	46	32	2.12	2	0.56
mm.		1270	114.3	128.5	251	1000.3	914.4	1022.4	1168.4		53.8	50.8	14.2
in.	38″	47.5	4.88	4.88	8.12	39.5	38	40.75	44	32	1.88	1 3/4	0.56
mm.		1206.5	124	124	206.2	1003.3	965.2	1035.1	1117.6		47.8	44.5	14.2
in.	40″	50	5.12	5.12	8.5	41.5	40	43	46.25	32	2	1 7/8	0.56
mm.		1270	130	130	215.9	1054.1	1016	1092.2	1174.8		50.8	47.6	14.2
in.	42″	52	5.25	5.25	8.81	43.62	42	45	48.25	32	2	1 7/8	0.56
mm.		1320.8	133.4	133.4	223.8	1107.9	1066.8	1143	1225.6		50.8	47.6	14.2
in.	44″	54.5	5.5	5.5	9.18	45.62	44	47.25	50.5	32	2.12	2	0.56
mm.		1384.3	139.7	139.7	233.2	1158.7	1117.6	1200.2	1282.7		53.8	50.8	14.2
in.	46″	56.75	5.75	5.75	9.62	47.75	46	49.5	52.75	36	2.12	2	0.56
mm.		1441.5	146.1	146.1	244.3	1212.9	1168.4	1257.3	1339.9		53.8	50.8	14.2
in.	48″	59.5	6	6	10.12	49.88	48	51.5	55.25	28	2.38	2 1/4	0.56
mm.		1511.3	152.4	152.4	257	1267	1219.2	1308.1	1403.4		60.5	57.2	14.2
in.	50″	61.75	6.19	6.25	10.56	52	50	53.62	57.5	32	2.38	2 1/4	0.56
mm.		1568.5	157.2	158.8	268.2	1320.8	1270	1361.9	1460.5		60.5	57.2	14.2
in.	52″	63.75	6.38	6.44	10.88	54	52	55.62	59.5	32	2.38	2 1/4	0.56
mm.		1619.3	162.1	163.6	276.4	1371.6	1320.8	1412.7	1511.3		60.5	57.2	14.2
in.	54″	67	6.69	6.75	11.38	56.12	54	57.88	62.25	28	2.62	2 1/2	0.56
mm.		1701.8	169.9	171.5	289.1	1425.4	1371.6	1470.2	1581.2		66.5	63.5	14.2
in.	56″	69	6.88	6.94	11.75	58.25	56	60.12	64.25	32	2.62	2 1/2	0.56
mm.		1752.6	174.8	176.3	298.5	1479.6	1422.4	1527	1632		66.5	63.5	14.2
in.	58″	71	7	7.12	12.06	60.25	58	62.12	66.25	32	2.62	2 1/2	0.56
mm.		1803.4	177.8	180.8	306.3	1530.4	1473.2	1577.8	1682.8		66.5	63.5	14.2
in.	60″	74.25	7.31	7.44	12.56	62.38	60	64.38	69	32	2.88	2 5/8	0.56
mm.		1886	185.7	189	319	1584.5	1524	1635.3	1752.6		73.2	66.7	14.2