SPECTACLE BLINDS & BLEED RINGS

FIGURE 8 BLANKS

Dimension of Class 150 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	1.75	45	2.38	60	.12	3.0	1.50	38
¾	.82	21	2.12	54	2.75	70	.12	3.0	1.50	38
1	1.05	27	2.50	64	3.12	80	.12	3.0	1.50	38
1 ¼	1.66	42	2.88	73	3.50	90	.25	6.4	1.50	38
1 ½	1.90	48	3.25	83	3.88	100	.25	6.4	1.50	38
2	2.38	61	4.00	102	4.75	120	.25	6.4	2.00	51
2 ½	2.88	73	4.75	107	5.50	140	.25	6.4	2.00	51
3	3.50	89	5.25	133	6.00	150	.25	6.4	2.50	64
3 ½	4.00	102	6.25	19	7.00	175	.38	9.7	2.50	64
4	4.50	114	6.75	172	7.50	190	.38	9.7	2.50	64
5	5.56	141	7.62	194	8.50	215	.38	9.7	3.00	76
6	6.62	168	8.62	219	9.50	240	.50	12.7	3.00	76
8	8.62	219	10.88	276	11.75	300	.50	12.7	3.00	76
10	10.75	273	13.25	337	14.25	360	.62	15.7	4.00	102
12	12.75	324	16.00	406	17.00	430	.75	19.1	4.00	102
14	14.00	356	17.62	448	18.75	475	.75	19.1	4.25	108
16	16.00	406	20.12	460	21.25	511	.88	22.4	4.25	108
18	18.00	457	21.50	546	22.75	580	1.00	25.4	4.50	114
20	20.00	508	23.75	603	25.00	635	1.12	28.4	4.75	121
24	24.00	610	28.12	714	29.50	750	1.25	31.8	5.50	140

NOTES: (1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located such that it will not interfere with bolting between two flanges.
(2) Optional raised face. Refer to ASME B16.48 para. 4.3.1.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by ASME B16.48 para.4.1.

Dimension of Class 300 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	2.00	51	2.62	65	.25	6.4	1.50	38
¾	.82	21	2.50	64	3.25	80	.25	6.4	1.50	38
1	1.05	27	2.75	70	3.50	90	.25	6.4	1.50	38
1 ¼	1.66	42	3.12	79	3.88	100	.25	6.4	1.50	38
1 ½	1.90	48	3.62	92	4.50	115	.25	6.4	1.50	38
2	2.38	61	4.25	108	5.00	125	.38	9.7	2.00	51
2 ½	2.88	73	5.00	127	5.88	150	.38	9.7	2.00	51
3	3.50	89	5.75	146	6.62	170	.38	9.7	2.50	64
3 ½	4.00	102	6.38	162	7.25	185	.50	12.7	2.50	64
4	4.50	114	7.00	178	7.88	200	.50	12.7	2.50	64
5	5.56	141	8.38	213	9.25	235	.62	15.7	3.00	76
6	6.62	168	9.75	248	10.62	270	.62	15.7	3.00	76
8	8.62	219	12.00	305	13.00	330	.88	22.4	3.00	76
10	10.75	273	14.12	359	15.25	385	1.00	25.4	4.00	102
12	12.75	324	16.50	419	17.750	450	1.12	28.4	4.00	102
14	14.00	356	19.00	483	20.25	515	1.25	31.8	4.25	108
16	16.00	406	21.12	536	22.50	570	1.50	38.1	4.25	108
18	18.00	457	23.38	594	24.75	630	1.62	41.1	4.50	114
20	20.00	508	25.62	651	27.00	685	1.75	44.5	4.75	121
24	24.00	610	30.38	772	32.00	810	2.00	50.8	5.50	140

Dimension of Class 600 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	2.00	51	2.62	65	.25	6.4	1.50	38
¾	.82	21	2.50	64	3.25	80	.25	6.4	1.50	38
1	1.05	27	2.75	70	3.50	90	.25	6.4	2.25	57
1 ¼	1.44	37	3.12	79	3.88	100	.38	9.7	2.25	57
1 ½	1.68	43	3.62	92	4.50	115	.38	9.7	2.62	67
2	2.16	55	4.25	108	5.00	125	.38	9.7	2.25	57
2 ½	2.64	67	5.00	127	5.88	150	.50	12.7	2.62	67
3	3.26	83	5.75	146	6.62	170	.50	12.7	2.62	67
3 ½	3.76	96	6.25	159	7.25	185	.62	15.7	3.00	76
4	4.26	108	7.50	191	8.50	215	.62	15.7	3.00	76
5	5.30	135	9.38	238	10.50	265	.75	19.1	3.38	86
6	6.36	162	10.38	264	11.50	290	.88	22.4	3.38	86
8	8.33	212	12.50	318	13.75	350	1.12	28.4	3.75	95
10	10.42	265	15.62	397	17.00	430	1.38	35.1	4.12	105
12	12.39	315	17.88	454	19.25	490	1.62	41.1	4.12	105
14	13.62	346	19.25	489	20.75	525	1.75	44.5	4.50	114
16	15.62	397	22.12	562	23.75	605	2.00	50.8	4.88	124
18	17.62	448	24.00	610	25.75	655	2.12	53.8	5.25	133
20	19.56	497	26.75	679	28.50	725	2.50	63.5	5.25	133
24	23.50	597	31.00	787	33.00	840	2.88	73.2	6.00	152

Dimension of Class 900 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	2.38	60	3.25	80	.25	6.4	1.50	38
¾	.82	21	2.62	67	3.50	90	.25	6.4	1.62	41
1	1.05	27	3.00	76	4.00	100	.25	6.4	2.25	57
1 ¼	1.44	37	3.38	86	4.38	110	.38	9.7	2.25	57
1 ½	1.68	43	3.75	95	4.88	125	.38	9.7	2.62	67
2	2.16	55	5.50	140	6.50	165	.50	12.7	2.25	57
2 ½	2.64	67	6.38	162	7.50	190	.50	12.7	2.62	67
3	3.26	83	6.50	165	7.50	190	.62	15.7	2.62	67
4	4.26	108	8.00	203	9.25	235	.75	19.1	3.00	76
5	5.30	135	9.62	244	11.00	280	.88	22.4	3.38	86
6	6.36	162	11.25	286	12.50	320	1.00	25.4	3.38	86
8	8.33	212	14.00	356	15.50	395	1.38	35.1	3.75	95
10	10.42	265	17.00	432	18.50	470	1.62	41.1	4.12	105
12	12.39	315	19.50	495	21.00	535	1.88	47.8	4.12	105
14	13.62	346	20.38	518	22.00	560	2.12	53.8	4.50	114
16	15.62	397	22.50	572	24.25	615	2.38	60.5	4.88	124
18	17.62	448	25.00	635	27.00	685	2.62	66.5	5.25	133
20	19.56	497	27.38	696	29.50	750	2.88	73.2	5.25	133
24	23.50	597	32.88	835	35.50	900	3.50	88.9	6.00	152

Dimension of Class 1500 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	2.38	60	3.25	80	.25	6.4	1.50	38
¾	.82	21	2.62	67	3.50	90	.38	9.7	1.62	41
1	1.05	27	3.00	76	4.00	100	.38	9.7	2.20	64
1 ¼	1.38	35	3.38	86	4.38	110	.38	9.7	2.50	64
1 ½	1.61	41	3.75	95	4.88	125	.50	12.7	2.75	70
2	2.07	53	5.50	140	6.50	165	.50	12.7	2.75	70
2 ½	2.47	63	6.38	162	7.50	190	.62	15.7	3.00	76
3	3.07	78	6.75	172	8.00	205	.75	19.1	3.00	76
4	4.03	102	8.12	206	9.50	240	.88	22.4	3.50	89
5	5.05	128	9.88	251	11.50	290	1.12	28.4	3.50	89
6	6.06	154	11.00	279	12.50	320	1.38	35.1	3.50	89
8	7.98	203	13.75	349	15.50	395	1.62	41.1	4.00	102
10	10.02	255	17.00	432	19.00	480	2.00	50.8	4.50	114
12	11.94	303	20.38	518	22.50	570	2.38	60.5	4.50	114
14	13.12	333	22.62	575	25.00	635	2.62	66.5	5.00	127
16	15.00	381	25.12	638	27.75	705	3.00	76.2	5.25	133
18	16.88	429	27.62	702	30.50	775	3.38	85.9	5.75	146
20	18.81	478	29.62	752	32.75	830	3.75	95.3	6.00	152
24	22.62	575	35.38	899	39.00	990	4.38	111.3	7.00	178

Dimension of Class 2500 Raised Face Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.62	16	2.62	67	3.50	90	.38	9.7	1.50	38
¾	.82	21	2.88	73	3.75	95	.38	9.7	1.62	41
1	1.05	27	3.25	83	4.25	110	.38	9.7	2.50	64
1 ¼	1.38	35	4.00	102	5.12	130	.50	12.7	2.50	64
1 ½	1.61	41	4.50	114	5.75	145	.62	15.7	2.75	70
2	2.07	53	5.62	143	6.75	170	.62	15.7	2.75	70
2 ½	2.47	63	6.50	165	7.75	195	.75	19.1	3.00	76
3	3.07	78	7.62	194	9.00	230	.88	22.4	3.00	76
4	4.03	102	9.12	232	10.75	275	1.12	28.4	3.50	89
5	5.05	128	10.88	276	12.75	325	1.38	35.1	3.50	89
6	6.06	154	12.38	314	14.50	370	1.62	41.1	3.50	89
8	7.81	198	15.12	384	17.25	440	2.12	53.8	4.00	102
10	9.75	248	18.62	473	21.25	540	2.62	66.5	4.50	114
12	11.37	289	21.50	546	24.38	620	3.12	79.2	4.50	114

FIGURE 8 RING JOINT BLANKS

Dimension of Class 150 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
1	1.32	34	2.50	64	3.12	80	.75	19.1	2.00	51
1 ¼	1.66	42	2.88	73	3.50	90	.75	19.1	2.00	51
1 ½	1.90	48	3.25	83	3.88	100	.75	19.1	2.25	57
2	2.38	61	4.00	102	4.75	120	.75	19.1	2.25	57
2 ½	2.88	73	4.75	121	5.50	140	.88	22.4	2.25	57
3	3.50	89	5.25	133	6.00	150	.88	22.4	2.25	57
3 ½	4.00	102	6.06	154	7.00	175	.88	22.4	2.50	64
4	4.50	114	6.75	172	7.50	190	.88	22.4	2.50	64
5	5.56	141	7.62	194	8.50	215	1.00	25.4	2.75	70
6	6.62	168	8.62	219	9.50	240	1.00	25.4	3.25	83
8	8.62	219	10.75	273	11.75	300	1.12	28.4	3.75	95
10	10.75	273	13.00	330	14.25	360	1.25	31.8	4.00	102
12	12.75	324	16.00	406	17.00	430	1.38	35.1	4.75	121
14	14.00	256	16.75	426	18.75	475	1.38	35.1	5.00	127
16	16.00	406	19.00	483	21.25	540	1.50	38.1	5.00	127
18	18.00	457	21.50	546	22.75	580	1.62	41.1	5.00	127
20	20.00	508	23.50	597	25.00	635	1.62	41.1	5.00	127
24	24.00	610	28.00	711	29.50	750	1.88	47.8	6.00	152

NOTES: (1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by ASME B16.48 para.4.1.

Dimension of Class 300 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.84	21	2.00	51	2.62	65	.62	15.7	1.50	38
¾	1.05	27	2.50	64	3.25	80	.75	19.1	1.75	45
1	1.32	34	2.75	70	3.50	90	.75	19.1	2.00	51
1 ¼	1.66	42	3.12	79	3.88	100	.88	22.4	2.00	51
1 ½	1.90	48	3.56	90	4.50	115	.88	22.4	2.25	57
2	2.38	61	4.25	108	5.00	125	1.00	25.4	2.25	57
2 ½	2.88	73	5.00	127	5.88	150	1.12	28.4	2.25	57
3	3.50	89	5.75	146	6.62	170	1.12	28.4	2.25	57
3 ½	4.00	102	6.25	159	7.25	185	1.12	28.4	2.50	64
4	4.50	114	6.88	175	7.88	200	1.25	31.8	2.50	64
5	5.56	141	8.25	210	9.25	235	1.38	35.1	2.75	70
6	6.62	168	9.50	241	10.62	270	1.38	35.1	3.25	83
8	8.62	219	11.88	302	13.00	330	1.62	41.1	3.75	95
10	10.75	273	14.00	356	15.25	385	1.75	44.5	4.00	102
12	12.75	324	16.25	413	17.75	450	2.00	50.8	4.75	121
14	14.00	356	18.00	457	20.25	515	2.12	53.8	5.00	127
16	16.00	406	20.00	508	22.50	570	2.25	57.2	5.00	127
18	18.00	457	22.62	575	24.75	630	2.38	60.5	5.00	127
20	20.00	508	25.00	635	27.00	685	2.75	69.9	5.00	127
24	24.00	610	29.50	749	32.00	810	3.12	79.2	6.00	152

Dimension of Class 600 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.84	21	2.00	51	2.62	65	.75	19.1	1.50	38
¾	1.05	27	2.50	64	3.25	80	.88	22.4	1.75	45
1	1.32	34	2.75	70	3.50	90	.88	22.4	2.00	51
1 ¼	1.66	42	3.12	79	3.88	100	.88	22.4	2.00	51
1 ½	1.90	48	3.56	90	4.50	115	.88	22.4	2.25	57
2	2.38	61	4.25	108	5.00	125	1.12	28.4	2.25	57
2 ½	2.88	73	5.00	127	5.88	150	1.25	31.8	2.25	57
3	3.50	89	5.75	146	6.62	170	1.25	31.8	2.25	57
3 ½	4.00	102	6.25	159	7.25	185	1.38	35.1	2.50	64
4	4.50	114	6.88	175	8.50	215	1.38	35.1	2.50	64
5	5.56	141	8.25	210	10.50	265	1.50	38.1	2.75	70
6	6.62	168	9.50	241	11.50	290	1.75	44.5	3.25	83
8	8.62	219	11.88	302	13.75	350	2.00	50.8	3.75	95
10	10.75	273	14.00	356	17.00	430	2.25	57.2	4.00	102
12	12.75	324	16.25	413	19.25	490	2.50	63.5	4.75	121
14	14.00	356	18.00	457	20.75	525	2.62	66.5	5.00	127
16	16.00	406	20.00	508	23.75	605	2.88	73.2	5.00	127
18	18.00	457	22.62	575	25.75	655	3.12	79.2	5.00	127
20	20.00	508	25.00	635	28.50	725	3.50	88.9	5.00	127
24	24.00	610	29.50	749	33.00	840	4.12	104.6	6.00	152

Dimension of Class 900 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.84	21	2.38	61	3.25	80	.88	22.4	1.50	38
¾	1.05	27	2.62	67	3.50	90	.88	22.4	1.75	45
1	1.32	34	2.81	71	4.00	100	.88	22.4	2.00	51
1 ¼	1.66	42	3.19	81	4.38	110	1.00	25.4	2.00	51
1 ½	1.90	48	3.62	92	4.88	125	1.00	25.4	2.50	64
2	2.38	61	4.88	124	6.50	165	1.25	31.8	2.00	51
2 ½	2.88	73	5.38	137	7.50	190	1.38	35.1	2.62	67
3	3.50	89	6.12	155	7.50	190	1.38	35.1	2.62	67
4	4.50	114	7.12	181	9.25	235	1.62	41.1	2.88	73
5	5.56	141	8.50	216	11.00	280	1.75	44.5	2.88	73
6	6.62	168	9.50	241	12.50	315	1.88	47.8	2.88	73
8	8.62	219	12.12	308	15.50	395	2.25	57.2	3.12	80
10	10.75	273	14.25	362	18.50	470	2.50	63.5	4.75	121
12	12.75	324	16.50	419	21.00	535	2.88	73.2	4.75	121
14	14.00	356	18.38	467	22.00	560	3.25	82.6	4.75	121
16	16.00	406	20.62	524	24.25	615	3.62	91.9	5.00	127
18	18.00	457	23.38	594	27.00	685	4.00	101.6	5.25	133
20	20.00	508	25.50	648	29.50	750	4.38	111.3	5.00	127
24	24.00	610	30.38	772	35.50	900	5.25	133.4	5.50	140

Dimension of Class 1500 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.84	21	2.38	61	3.25	80	.88	22.4	1.50	38
¾	1.05	27	2.62	67	3.50	90	1.00	25.4	1.75	45
1	1.32	34	2.81	71	4.00	100	1.00	25.4	2.12	54
1 ¼	1.66	42	3.19	81	4.38	110	1.00	25.4	2.12	54
1 ½	1.90	48	3.62	92	4.88	125	1.12	28.4	2.25	57
2	2.38	61	4.88	124	6.50	165	1.38	35.1	2.12	54
2 ½	2.88	73	5.38	137	7.50	190	1.50	38.1	2.25	57
3	3.50	89	6.62	168	8.00	205	1.75	44.5	2.88	73
4	4.50	114	7.62	194	9.50	240	1.88	47.8	3.00	76
5	5.56	141	9.00	229	11.50	290	2.12	53.8	3.00	76
6	6.62	168	9.75	248	12.50	315	2.38	60.5	3.12	79
8	8.62	219	12.50	318	15.50	395	2.88	73.2	3.38	86
10	10.75	273	14.62	371	19.00	480	3.25	82.5	5.25	133
12	12.75	324	17.25	438	22.50	570	4.00	101.6	5.25	133
14	14.00	356	19.25	489	25.00	635	4.38	111.3	5.50	140
16	16.00	406	21.50	546	27.75	705	4.88	124.0	5.75	146
18	18.00	457	24.12	613	30.50	775	5.25	133.0	6.00	152
20	20.00	508	26.50	673	32.75	830	5.62	142.7	6.50	165
24	24.00	610	31.25	794	39.00	990	6.62	168.1	7.00	178

Dimension of Class 2500 Female Ring Joint Facing Figure 8 Blanks

NPS	Inside Diameter B		Outside Diameter O		Centerline Dimensions A		Thickness t		Web Width W
NPS	IN	MM	IN	MM	IN	MM	IN	MM	IN	MM
½	.84	21	2.56	65	3.50	90	1.00	25.4	1.50	38
¾	1.05	27	2.88	73	3.75	95	1.12	28.4	1.75	45
1	1.32	34	3.25	83	4.25	110	1.12	28.4	2.12	54
1 ¼	1.66	42	4.00	102	5.12	130	1.38	35.1	2.12	54
1 ½	1.90	48	4.50	114	5.75	145	1.50	38.1	2.38	61
2	2.38	61	5.25	133	6.75	170	1.62	41.1	2.25	57
2 ½	2.88	73	5.88	149	7.75	195	1.88	47.8	2.38	61
3	3.50	89	6.62	168	9.00	230	2.00	50.8	3.00	76
4	4.50	114	8.00	203	10.75	270	2.50	63.5	3.25	83
5	5.56	141	9.50	241	12.75	325	2.88	73.2	3.50	89
6	6.62	168	11.00	279	14.50	370	3.25	82.6	3.75	95
8	8.62	219	13.38	340	17.25	440	3.88	98.6	3.75	95
10	10.75	273	16.75	425	21.25	540	4.62	117.3	3.58	91
12	12.75	324	19.50	495	24.38	620	5.25	133.4	6.00	152

BLEED RINGS

Dimension in Inches
NPS	150		300		600		900		1500		2500
NPS	A	B	A	B	A	B	A	B	A	B	A	B
1	1.05	2.50	1.05	2.75	1.05	2.75	1.05	3.00	1.05	3.00	1.05	3.25
1 ½	1.90	3.25	1.90	3.62	1.68	3.62	1.44	3.75	1.61	3.75	1.61	4.50
2	2.38	4.00	2.38	4.25	2.16	4.25	2.16	5.50	2.07	5.50	2.07	5.62
2 ½	2.88	4.75	2.88	5.00	2.64	5.00	2.64	6.38	2.47	6.38	2.47	6.50
3	3.50	5.25	3.50	5.75	3.26	5.75	3.26	6.50	3.07	6.75	3.07	7.62
4	4.50	6.75	4.50	7.00	4.26	7.50	4.26	8.00	4.03	8.12	4.03	9.12
5	5.56	7.62	5.56	8.38	5.30	9.38	5.30	9.62	5.05	9.88	5.05	10.88
6	6.62	8.62	6.62	9.75	6.36	10.38	6.36	11.25	6.06	11.00	6.06	12.38
8	8.62	10.88	8.62	12.00	8.33	12.50	8.33	14.00	7.98	13.75	7.81	15.12
10	10.75	13.25	10.75	14.12	10.42	15.62	10.42	17.00	10.02	17.00	9.75	18.62
12	12.75	16.00	12.75	16.50	12.39	17.88	12.39	19.50	11.94	20.38	11.37	21.50
14	14.00	17.62	14.00	19.00	13.62	19.25	13.62	20.38	13.12	22.62
16	16.00	20.12	16.00	21.12	15.62	22.12	15.62	22.50	15.00	25.12
18	18.00	21.50	18.00	23.38	17.62	24.00	17.62	25.00	16.88	27.62
20	20.00	23.75	20.00	25.62	19.56	26.75	19.56	27.38	18.81	29.62
24	24.00	28.12	24.00	30.38	23.50	31.00	23.50	32.88	22.62	35.38

NOTES: (1) Female ring-joint available thickness will be as per ASME B16.48 RTJ Figure 8 Blinds plus the following:
(1/2” NPT + 7/8”) – (3/4” NPT + 1”) – (1” NPT + 1-3/8”)
(2) Bleed Rings with 1" NPT shall be 2" thick.
VOP Addendum 1 to ASME B16.48