Minimum Bore Dimensions for Full Bore Ball Valves

The table below gives the minimum bore dimensions of full bore ball valves according to API SPEC 6D

NPS	DN	Minimum Bore Dims for Full Bore Ball Valves
		Class 150, 300, 600		Class 900		Class 1500		Class 2500
		inch	mm	inch	mm	inch	mm	inch	mm
1/2	15	0.50	12.7	0.50	12.7	0.50	12.7	0.50	12.7
3/4	20	0.75	19	0.75	19	0.75	19	0.75	19
1	25	0.98	25	0.98	25	0.98	25	0.98	25
1.1/4	32	1.25	31.8	1.25	31.8	1.25	31.8	1.25	31.8
1.1/2	40	1.50	38	1.50	38	1.50	38	1.50	38
2	50	1.93	49	1.93	49	1.93	49	1.65	42
2.1/2	65	2.44	62	2.44	62	2.44	62	2.05	52
3	80	2.91	74	2.91	74	2.91	74	2.44	62
4	100	3.94	100	3.94	100	3.94	100	3.42	87
6	150	5.91	150	5.91	150	5.67	144	5.16	131
8	200	7.91	201	7.91	201	7.55	192	7.04	179
10	250	9.92	252	9.92	252	9.41	239	8.78	223
12	300	11.93	303	11.93	303	11.30	287	10.43	265
14	350	13.15	334	12.67	322	12.40	315	11.50	292
16	400	15.16	385	14.69	373	14.17	360	13.11	333
18	450	17.16	436	16.65	423	15.98	406	14.72	374
20	500	19.17	487	18.54	471	17.87	454	16.50	419
22	550	21.18	538	20.55	522	19.69	500	-	-
24	600	23.19	589	22.44	570	21.50	546	-	-
26	650	24.92	633	24.29	617	23.38	594	-	-
28	700	26.93	684	26.18	665	25.23	641	-	-
30	750	28.94	735	28.03	712	27.00	686	-	-
32	800	30.66	779	29.92	760	28.74	730	-	-
34	850	32.68	830	31.81	808	30.50	775	-	-
36	900	34.41	874	33.66	855	32.24	819	-	-
38	950	36.42	925	35.59	904	-	-	-	-
40	1000	38.43	976	37.63	955.8	-	-	-	-
42	1050	40.16	1020	39.61	1006	-	-	-	-
48	1200	45.90	1166	45.24	1149	-	-	-	-
54	1350	51.65	1312	-	-	-	-	-	-
56	1400	53.54	1360	-	-	-	-	-	-
60	1500	57.40	1458	-	-	-	-	-	-

API Ball Valve With Actuator