ASME B16.48 Spectacle Blind Flange

Check Spacer & Blind ASME B16 48, ANSI B16.48 Spectacle Flange Weight Chart.

ASME B16.48 spectacle blind flange is a special type of flange that looks like a spectacle and is used to open and close pipe lines. R.C. Metal Corporation is a leading manufacturer and supplier of the Spacer & Blind ASME B16 48 in different dimensions. The standard covers flanges ranging from ½ inches to 24 inches. There are different pressure classes ranging from 150 through 2500. The ANSI B16.48 Spectacle Flange has a plate and a ring joint parallel to each other. The plate can close the pipe completely and the ring stays on the outer diameter of the pipe allowing for full flow of the fluids. The Spectacle Blind Flange ASME B16.48 is used in systems that need regular opening and closing of the pipe lines.

Only one point of the flange has to be permanently connected to the pipes and the Piping Spectacle Blind Flange can rotate around that permanent axis to place the plate or ring over the diameter of the pipe. There are different types such as the Spectacle Blind Flange Raised Face which has more surface for connection. There are also different pressure numbers to rate the pressure capacities. The PN16 Spectacle Blind Flange has a lower pressure capacity where there are PN numbers ranging from PN6 through PN64.

Spectacle Blind Flange Dimensions in MM
Spectacle Blind Flange Class 150 Standard Dimension
Spacer & Blind ASME B16 48 Material Specification Chart
300 LB Spectacle Blind Flange Dimensional Table
Dimension Chart of 600# Spectacle Blind Flange
Class 900 Spectacle Blind Flange Dimension
Dimension Table of Spectacle Blind Flange 1500 LBS
Spectacle Blind Flange Class 2500 Dimensions Chart
Working Pressure of ASME B16.48 Spectacle Blind Flange
What are the different types of Paddle Blinds Spacers ?

Due to the shape of number 8, the flanges are also known as Spectacle blind flange figure 8. The flanges can be forged, threaded or screwed in production. They can also be made as flat face or raised face and in different material grades. The Spectacle blind flange flat face is mostly produced in 304 austenitic stainless steel for the strength and low cost but other material made flanges are also available. The Spectacle Blind Flange Class 150 is one of the lowest pressure ratings of the flanges. Please feel free to contact us for more information on the flanges such as the PN10 Blind Spectacle Flange and the different variations along with price list.

View Spectacle Blind Flange ASME B16.48 Dimensions, Spectacle Blind Flange Raised Face, JIS Spectacle Blind Flange Manufacturers in India.

Spectacle Blind Flange Dimensions in MM

Spectacle Blind Flange Class 150 Standard Dimension

Size in inch.	Size in mm	O.D.	I.D.	Thick.	Center to Center	Web Thick.	Web Width	Paddle Blank Weight in Kilogram	Hole Diameter	Spectacle Blind Weight in Kg	Paddle Spacer Blank Weight in Kg
1/2	15	45	16	3	60	2	38	0.03	15.875	0.07	0.03
3/4	20	54	21	3	70	2	38	0.05	15.875	0.1	0.04
1	25	64	27	3	80	2	38	0.07	15.875	0.14	0.06
1 1/4	32	73	42	6.4	90	4	38	0.21	15.875	0.35	0.14
1 1/2	40	83	48	6.4	100	4	38	0.27	15.875	0.46	0.18
2	50	102	61	6.4	120	4	51	0.41	19.05	0.68	0.26
2 1/2	65	107	73	6.4	140	4	51	0.46	19.05	0.7	0.24
3	80	133	89	6.4	150	4	64	0.71	19.05	1.1	0.39
3 1/2	90	159	102	9.7	175	5	64	1.54	19.05	2.44	0.9
4	100	172	114	9.7	190	5	64	1.8	19.05	2.81	1.01
5	130	194	141	9.7	215	5	76	2.29	22.225	3.37	1.08
6	150	219	168	12.7	240	7	76	3.82	22.225	5.39	1.57
8	200	276	219	12.7	300	10	76	6.07	22.225	8.32	2.25
10	250	337	273	15.7	360	12	102	11.19	25.4	15.04	3.84
12	300	406	324	19.1	430	15	102	19.77	25.4	26.95	7.18
14	350	448	356	19.1	475	15	108	24.07	28.575	32.94	8.87
16	400	511	406	22.4	540	17	108	36.73	28.575	50.27	13.54
18	450	546	457	25.4	580	20	114	47.55	31.75	61.79	14.23
20	500	603	508	28.4	635	22	121	64.85	31.75	83.67	18.82
24	600	714	610	31.8	750	24	140	101.8	34.925	129.3	27.49

Get Weight of Piping Spectacle Blind Flange and Spectacle blind flange flat face, Spectacle Blind Flange Class 150 Sizes.

Spacer & Blind ASME B16 48 Material Specification Chart

Specifications	ASME B16.48 Spectacle Blind Flange
Standards	ASME \| BS \| DIN \| ANSI \| GOST \| EN Flange
Size Ranges	From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB)
UNI/ DIN / EN Standard	6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar
Production Process	Heat Treated, Forged, Machined
Flanges Face Type	FF, RF, LMF, SMF, RTJ, LJF.
JIS Standards	5 K, 10K, 16K, 20 K, 30K, 40K, 63 K
Pressure Classes	Cl 150, Class 300, Cl. 400, 600, Class 900, Cl 1500 and 2500

300 LB Spectacle Blind Flange Dimensional Table

Size in Millimeter	Size in In.	Outer Dia.	I.D.	Thk.	Center to Center	Web Thick.	Web Width	Hole Dia.	Spectacle Blind Weight in Kilogram	Paddle Spacer Blank Weight in Kilogram	Paddle Blank Weight in Kilogram
15	1/2	51	16	6.4	65	4	38	15.875	0.19	0.09	0.1
20	3/4	64	21	6.4	80	4	38	19.05	0.31	0.14	0.16
25	1	70	27	6.4	90	4	38	19.05	0.36	0.16	0.19
32	1 1/4	79	42	6.4	100	4	38	19.05	0.43	0.17	0.25
40	1 1/2	92	48	6.4	115	4	38	22.225	0.58	0.24	0.34
50	2	108	61	9.7	125	5	51	19.05	1.19	0.48	0.71
65	2 1/2	127	73	9.7	150	5	51	22.225	1.64	0.65	0.98
80	3	146	89	9.7	170	5	64	22.225	2.11	0.81	1.29
90	3 1/2	162	102	12.7	185	7	64	22.225	3.35	1.26	2.09
100	4	178	114	12.7	200	7	64	22.225	4.01	1.49	2.52
130	5	213	141	15.7	235	8	76	22.225	6.98	2.51	4.47
150	6	248	168	15.7	270	8	76	22.225	9.34	3.28	6.06
200	8	305	219	22.4	330	17	76	25.4	19.42	6.33	13.08
250	10	359	273	25.4	385	20	102	28.575	29.22	8.66	20.55
300	12	419	324	28.4	450	22	102	31.75	43.9	12.58	31.31
350	14	483	356	31.8	515	24	108	31.75	67.86	21.27	46.58
400	16	536	406	38.1	570	29	108	34.925	98.04	29.3	68.74
450	18	594	457	41.1	630	31	114	34.925	128.23	37.16	91.06
500	20	651	508	44.5	685	34	121	34.925	164.75	46.31	118.43
600	24	772	610	50.8	810	39	140	41.275	261.55	71.42	190.13

Dimension Chart of 600# Spectacle Blind Flange

Size in mm	Size in inches	Outer Diam.	I.D.	Center to Center	Web Width	Thick.	Web Thickness	Hole Dia	Paddle Blank Weight in Kilogram	Spectacle Blind Weight in Kilogram	Paddle Spacer Blank Weight in Kilogram
15	1/2	51	16	65	38	6.4	4	15.875	0.1	0.19	0.09
20	3/4	64	21	80	38	6.4	4	19.05	0.16	0.31	0.14
25	1	70	27	90	57	6.4	4	19.05	0.19	0.36	0.16
32	1 1/4	79	37	100	57	9.7	5	19.05	0.38	0.67	0.29
40	1 1/2	92	43	115	67	9.7	5	22.225	0.51	0.91	0.4
50	2	108	55	125	57	9.7	5	19.05	0.71	1.23	0.52
65	2 1/2	127	67	150	67	12.7	7	22.225	1.28	2.21	0.92
80	3	146	83	170	67	12.7	7	22.225	1.7	2.85	1.15
90	3 1/2	159	96	185	76	15.7	8	25.4	2.49	4.07	1.58
100	4	191	108	215	76	15.7	8	25.4	3.59	6.04	2.44
130	5	238	135	265	86	19.1	10	28.575	6.79	11.4	4.6
150	6	264	162	290	86	22.4	12	28.575	9.8	15.91	6.11
200	8	318	212	350	95	28.4	22	31.75	18.03	28.05	10.01
250	10	397	265	430	105	35.1	27	34.925	34.74	54	19.26
300	12	454	315	490	105	41.1	31	34.925	53.2	80.78	27.58
350	14	489	346	525	114	44.5	34	38.1	66.82	100.19	33.36
400	16	562	397	605	124	50.8	39	41.275	100.76	151.24	50.48
450	18	610	448	655	133	53.8	41	44.45	125.71	183.62	57.9
500	20	679	497	725	133	63.5	48	44.45	183.85	269.2	85.35
600	24	787	597	840	152	73.2	55	50.8	284.72	405.6	120.88

Class 900 Spectacle Blind Flange Dimension

Size in In.	Size in Millimeter	Center to Center	Internal Dia.	O.D.	Hole Dia	Web Thick.	Web Width	Spectacle Blind Weight in Kilogram	Paddle Spacer Blank Weight in Kilogram	Paddle Blank Weight in Kilogram
1/2	15	80	16	60	22.225	4	38	0.27	0.13	0.14
3/4	20	90	21	67	22.225	4	41	0.34	0.16	0.18
1	25	100	27	76	25.4	4	57	0.43	0.2	0.23
1 1/4	32	110	37	86	25.4	5	57	0.81	0.36	0.45
1 1/2	40	125	43	95	28.575	5	67	0.98	0.43	0.54
2	50	165	55	140	25.4	7	57	2.88	1.32	1.56
2 1/2	65	190	67	162	28.575	7	67	3.82	1.73	2.09
3	80	190	83	165	25.4	8	67	4.68	2	2.68
4	100	235	108	203	31.75	10	76	8.48	3.54	4.94
5	130	280	135	244	34.925	12	86	14.18	5.81	8.37
6	150	320	162	286	31.75	13	86	21.9	8.86	13.04
8	200	395	212	356	38.1	27	95	45.96	18.02	27.93
10	250	470	265	432	38.1	31	105	78.21	30.04	48.16
12	300	535	315	495	38.1	36	105	117.31	43.76	73.55
14	350	560	346	518	41.275	41	114	140.86	50.2	90.65
16	400	615	397	572	44.45	46	124	188.73	64.42	124.31
18	450	685	448	635	50.8	50	133	252.97	84.57	168.39
20	500	750	497	696	53.975	55	133	331.81	109.13	222.68
24	600	900	597	835	66.675	67	152	579.52	190.27	389.25

Dimension Table of Spectacle Blind Flange 1500 LBS

Size in In.	Size in Millimeter	I.D.	Web Thick.	Outer Diameter	Center to Center	Web Width	Thickness	Spectacle Blind Weight in Kilogram	Hole Dia	Paddle Spacer Blank Weight in Kilogram	Paddle Blank Weight in Kilogram
1/2	15	16	4	61	80	38	6.4	0.28	22.225	0.13	0.14
3/4	20	21	5	67	90	41	9.7	0.52	22.225	0.24	0.27
1	25	27	5	76	100	64	9.7	0.65	25.4	0.3	0.35
1 1/4	32	35	5	86	110	64	9.7	0.82	25.4	0.37	0.45
1 1/2	40	41	7	95	125	70	12.7	1.3	28.575	0.58	0.71
2	50	53	7	140	165	70	12.7	2.9	25.4	1.33	1.56
2 1/2	65	63	8	162	190	76	15.7	4.78	28.575	2.19	2.58
3	80	78	10	172	205	76	19.1	6.36	31.75	2.81	3.54
4	100	102	12	206	240	89	22.4	10.47	34.925	4.5	5.96
5	130	128	15	251	290	89	28.4	19.55	41.275	8.31	11.23
6	150	154	18	279	320	89	35.1	29.08	38.1	11.93	17.15
8	200	203	31	349	395	102	41.1	52.23	44.45	20.8	31.43
10	250	255	39	432	480	114	50.8	98.33	50.8	38.79	59.53
12	300	303	46	518	570	114	60.5	169.01	53.975	67.06	101.94
14	350	333	50	575	635	127	66.5	229.84	60.325	91.76	138.07
16	400	381	58	638	705	133	76.2	320.1	66.675	125.32	194.78
18	450	429	65	702	775	146	85.9	432.4	73.025	166.56	265.84
20	500	478	72	752	830	152	95.3	540.14	79.375	201.7	338.44
24	600	575	84	899	990	178	111.3	898.71	92.075	333.8	564.9

Spectacle Blind Flange Class 2500 Dimensions Chart

Size in inch.	Size in mm	O.D.	I.D.	Center to Center	Thick.	Web Thick.	Web Width	Hole Dia	Paddle Blank Weight in Kilogram	Spectacle Blind Weight in Kilogram	Paddle Spacer Blank Weight in Kilogram
1/2	15	67	16	90	9.7	5	38	22.225	0.27	0.53	0.25
3/4	20	73	21	95	9.7	5	41	22.225	0.32	0.62	0.29
1	25	83	27	110	9.7	5	64	25.4	0.41	0.79	0.37
1 1/4	32	102	35	130	12.7	7	64	28.575	0.82	1.56	0.73
1 1/2	40	114	41	145	15.7	8	70	31.75	1.28	2.39	1.11
2	50	143	53	170	15.7	8	70	28.575	2.01	3.75	1.73
2 1/2	65	165	63	195	19.1	10	76	31.75	3.26	6.05	2.78
3	80	194	78	230	22.4	12	76	34.925	5.29	9.73	4.43
4	100	232	102	275	28.4	22	89	41.275	9.59	17.34	7.74
5	130	276	128	325	35.1	27	89	47.625	16.79	29.97	13.17
6	150	314	154	370	41.1	31	89	53.975	25.44	44.77	19.32
8	200	384	198	440	53.8	41	102	53.975	49.82	86.39	36.57
10	250	473	248	540	66.5	50	114	66.675	93.43	161.18	67.74
12	300	546	289	620	79.2	60	114	73.025	148.27	255.01	106.73

Suppliers of Spectacle blind flange figure 8, Refer Spectacle Blind Flange Rf, Stainless Steel spectacle blind flange Pressure Ratings.

Working Pressure of ASME B16.48 Spectacle Blind Flange

Temperature (F°)	Class 300	Class 150	Class 400	Class 600	Class 1500	Class 900	Class 2500
-20 to 100	740	285	985	1480	3705	2220	6170
200	680	260	905	1360	3395	2035	5655
300	655	230	870	1310	3270	1965	5450
400	635	200	845	1265	3170	1900	5280
500	605	170	805	1205	3015	1810	5025
600	570	140	755	1135	2840	1705	4730
650	550	125	730	1100	2745	1650	4575
700	530	110	710	1060	2655	1590	4425
750	505	95	675	1015	2535	1520	4230
800	410	80	550	825	2055	1235	3430
850	320	65	425	640	1595	955	2655
900	230	50	305	460	1150	690	1915
950	135	35	185	275	685	410	1145
1000	85	20	115	170	430	255	715