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Eng-Calculations

Dimensions of PN 100 flanges

This diagram illustrates the arrangement but not necessarily the correct number of bolt holes

Flange type 01

Flange type 05

Flange type 11

Flange type 12

Flange type 13

Flange type 21

DN	Outside diameter $ D $ , in $ \mathrm{mm} $	Diameter of bolt circle $ K $ , in $ \mathrm{mm} $	Diameter of bolt hole $ L $ , in $ \mathrm{mm} $	Number of bolts	Bolts size	Outside diameter of neck $ A $ , in $ \mathrm{mm} $	Bore diameters $ B_1 $ , in $ \mathrm{mm} $	Flange thickness $ C_1 $ , in $ \mathrm{mm} $	Flange thickness $ C_2 $ , in $ \mathrm{mm} $	Flange thickness $ C_3 $ , in $ \mathrm{mm} $	Flange thickness $ C_4 $ , in $ \mathrm{mm} $	Centre portion $ G_{max} $ , in $ \mathrm{mm} $	Length $ H_1 $ , in $ \mathrm{mm} $	Length $ H_2 $ , in $ \mathrm{mm} $	Length $ H_3 $ , in $ \mathrm{mm} $	Neck diameters $ N_1 $ , in $ \mathrm{mm} $	Neck diameters $ N_2 $ , in $ \mathrm{mm} $	Neck diameters $ N_3 $ , in $ \mathrm{mm} $	Corner radius $ R_1 $ in $ \mathrm{mm} $
10	100	70	14	4	M12	17.2	18	20	20	20	20	-	28	45	6	32	40	40	4
15	105	75	14	4	M12	21.3	22	20	20	20	20	-	28	45	6	34	43	45	4
20	130	90	18	4	M16	26.9	27.5	22	22	22	22	-	30	48	8	42	52	50	4
25	140	100	18	4	M16	33.7	34.5	24	24	24	24	-	32	58	8	52	60	61	4
32	155	110	22	4	M20	42.4	43.5	24	24	26	24	-	32	60	8	62	68	68	6
40	170	125	22	4	M20	48.3	49.5	26	26	28	26	-	34	62	10	70	80	82	6
50	195	145	26	4	M24	60.3	61.5	28	28	30	28	-	36	68	10	90	95	96	6
65	220	170	26	8	M24	76.1	77.5	30	30	34	30	45	40	76	12	108	118	118	6
80	230	180	26	8	M24	88.9	90.5	34	32	36	32	60	44	78	12	120	130	128	8
100	265	210	30	8	M27	114.3	116	36	36	40	36	80	52	90	12	150	158	150	8
125	315	250	33	8	M30	139.7	141.5	42	40	40	40	105	56	105	12	180	188	185	8
150	355	290	33	12	M30	168.3	170.5	48	44	44	44	130	60	115	12	210	225	216	10
200	430	360	36	12	M33	219.1	221.5	60	52	52	52	180	-	130	16	278	-	278	10
250	505	430	39	12	M36	273	276.5	72	60	60	60	210	-	157	18	340	-	340	12
300	585	500	42	16	M39	323.9	327.5	84	68	68	68	260	-	170	18	400	-	407	12
350	655	560	48	16	M45	355.6	359.5	95	74	74	74	300	-	189	20	460	-	460	12
400	715	620	48	16	M45	406.4	411	-	-	-	-	-	-	-	-	-	-	-	-
500	870	760	56	20	M52	508	513.5	-	-	-	-	-	-	-	-	-	-	-	-