Dimensions of Class 1500 Steel Flange Valves and Fittings

Nominal Size	Inside Diam.	OD of Flange	Raised Face Diam.	Thickness of Flange	Diam. Of Bolt Circle	Diam. Of Bolt Holes	No. of Bolt	Diam. of Bolt	Facing Diam.	Pitch Diam.	Ring No.	Depth of Groove	Width of Groove	Groove Fillet Radius
	d	D	g	T	C	h			K	P		E	F	r
inch	inch	inch	inch	inch	inch	inch	inch	inch	inch	inch		inch	inch	inch
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm		mm	mm	mm
1/2	0.50	4.75	1.38	0.88	3.25	0.88	4	3/4	2.38	1.562	R12	0.250	0.344	0.03
15	13	121	34.9	22.5	82.5	23			60.5	39.69		6.35	8.74	0.8
3/4	3/4	4.12	1.69	1.00	3.50	0.88	4	3/4	2.62	1.750	R14	0.250	0.344	0.03
20	17	130	42.9	25.5	88.9	23			66.5	44.45		6.35	8.74	0.8
1	0.88	5.88	2.00	1.12	4.00	1.00	4	7/8	2.81	2.000	R16	0.250	0.344	0.03
25	22	149	50.8	29.0	101.6	26			71.5	50.80		6.35	8.74	0.8
1 1/4	1.12	6.25	2.50	1.12	4.38	1.00	4	7/8	3.19	2.375	R18	0.250	0.344	0.03
32	29	159	63.5	29.0	111.1	26			81.0	60.35		6.35	8.74	0.8
1 1/2	1.38	7.00	2.88	1.25	4.88	1.12	4	1	3.62	2.688	R20	0.250	0.344	0.03
40	35	178	73.0	32.0	123.8	29			92.0	68.26		6.35	8.74	0.8
2	1.88	8.50	3.62	1.50	6.50	1.00	8	7/8	4.88	3.750	R24	0.312	0.469	0.03
50	48	216	92.1	38.5	165.1	26			124	95.25		7.92	11.91	0.8
2 1/2	2.25	9.62	4.12	1.62	7.50	1.12	8	1	5.38	4.250	R27	0.312	0.469	0.03
65	57	244	104.8	41.5	190.5	29			137	107.95		7.92	11.91	0.8
3	2.75	10.50	5.00	1.88	7.50	1.25	8	1 /18	6.62	5.375	R35	0.312	0.469	0.03
80	70	267	127.0	48.0	190.5	32			168	136.53		7.92	11.91	0.8
4	3.62	12.25	6.19	2.12	9.25	1.38	8	1 1/4	7.62	6.375	R39	0.312	0.469	0.03
100	92	311	157.2	54.0	234.9	35			194	161.93		7.92	11.91	0.8
5	4.38	14.75	7.31	2.88	11.00	1.62	8	1 1/2	9.00	7.625	R44	0.312	0.469	0.03
125	111	375	185.7	73.5	279.4	42			229	193.68		7.92	11.91	0.8
6	5.38	15.50	8.50	3.25	12.50	1.50	12	1 3/8	9.75	8.312	R46	0.375	0.531	0.06
150	137	394	215.9	83.0	317.5	39			248	211.14		9.52	13.49	1.5
8	7.00	19.00	10.62	3.62	15.50	1.75	12	1 5/8	12.50	10.625	R50	0.438	0.656	0.06
200	178	483	269.9	92.0	393.7	45			318	269.88		11.13	16.66	1.5
10	8.75	23.00	12.75	4.25	18.50	2.00	12	1 7/8	14.62	12.750	R54	0.438	0.656	0.06
250	222	585	323.8	108.0	469.9	51			371	323.85		11.13	16.66	1.5
12	10.38	26.50	15.00	4.88	21.00	2.12	16	2	17.25	15.00	R58	0.562	0.906	0.06
300	264	675	381.0	124.0	533.4	54			438	381.00		14.27	23.01	1.5
14	11.38	29.50	16.25	5.25	22.00	2.38	16	2 1/4	19.25	16.500	R63	0.625	1.062	0.09
350	289	750	412.8	133.5	558.8	61			489	419.10		15.88	26.97	2.4
16	13.00	32.50	18.50	5.75	24.25	2.62	16	2 1/2	21.50	18.500	R67	0.688	1.188	0.09
400	330	825	469.9	146.5	615.9	67			546	469.90		17.48	30.18	2.4
18	14.62	36.00	21.00	6.38	27.00	2.88	16	2 3/4	24.12	21.000	R71	0.688	1.188	0.09
450	371	915	533.4	162.0	685.8	74			613	533.40		17.48	30.18	2.4
20	16.38	38.75	23.00	7.00	29.50	3.12	16	3	26.50	23.000	R75	0.688	1.312	0.09
500	416	985	584.2	178.0	749.3	80			673	584.20		17.48	33.32	2.4
24	19.62	46.00	27.25	8.00	35.50	3.62	16	3 1/2	31.25	27.250	R79	0.812	1.438	0.09
600	498	1170	692.2	203.5	901.7	93			794	692.15		20.62	36.53	2.4