BS 3293 Class 150 SO

Pipe flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification.

The Slip-on flange has a low hub because the pipe slips into the flange prior to welding. It is welded both inside and out to provide sufficient strength and prevent leakage.Slip-on flanges are all bored slightly larger than the O.D. of the pipe.

Nominal pipe size	Outside diameter of flange, O	Outside diameter, R	Thickness of flange min., C	Outside diameter of large end of hub, X	Length through hub, Y	Fillet radius	Flange bore, B	Diameter of bolt circle, D	Diameter of bolt holes	Number of bolt holes	Approxi-mate Weight kgs
26	869.95	742.95	50.80	723.90	85.73	6.35	666.75	806.45	34.93	24	104.09
28	927.10	793.75	52.39	781.05	87.31	6.35	717.55	863.60	34.93	28	118.94
30	984.25	857.25	53.98	831.85	88.90	6.35	768.35	914.40	34.93	28	134.56
32	1060.45	908.05	57.15	889.00	92.08	7.94	819.15	977.90	41.28	28	166.33
34	1111.25	958.85	58.74	939.80	93.66	7.94	869.95	1028.70	41.28	32	178.16
36	1168.40	1022.35	60.33	996.95	95.25	7.94	920.75	1085.85	41.28	32	201.15
38	1238.25	1073.15	60.33	1060.45	95.25	9.53	971.55	1149.35	41.28	32	234.77
40	1289.05	1123.95	63.50	1111.25	98.43	9.53	1022.35	1200.15	41.28	36	255.04
42	1346.20	1193.80	66.68	1168.40	101.60	9.53	1073.15	1257.30	41.28	36	289.32
44	1403.35	1244.60	66.68	1219.20	101.60	11.11	1123.95	1314.45	41.28	40	307.07
46	1454.15	1295.40	68.26	1270.00	103.19	11.11	1174.75	1365.25	41.28	40	327.20
48	1511.30	1358.90	69.85	1327.15	104.78	11.11	1225.55	1422.40	41.28	44	357.05

Note: 7 mm raised face regularly furnished on Classes 150 and 300 unless otherwise ordered.