Spectacle Blind Flange manufacturer and supplier in India

ASME/ ANSI B16.5 Stainless Steel Figure-8 Blank manufacturer in India

Spectacle Blind Flanges

Carbon steel spectacle blind flanges can be easily rotated to open and close the flow from pipes. These are used in high pressure pipe networks. They have various grades and specifications such as ASME SA105, A105 spectacle blind flanges and lot more. These are manufactured by using high quality raw materials and based on that the product is implemented. Stainless Steel Spectacle Blind Flange delivers excellent performance and is used in industries such as oil and gas pipeline, heating, power plant, fabrication industry and many more. These are attached t the pipe without welding. It has various materials and grades.

AWWA C207 Blind Flange is basically used in waterworks, slurry, waste water, plant piping or in other applications. It has various other specification and dimensions such as size, type and material. These are available in various sizes and shapes and are used in petrochemicals, steel plants and in other industries. AWWA C207 Class F Flanges packaging is done in this way that the product will not get damage. This product is thus manufactured by one of the topmost company known as regal sales. Our expert team is good enough to handle the manufacturing process and it delivers the product on time. We are an ISO certified and 20 years old organization.

Table of Content

What is Spectacle Blind Flanges supposed to mean ?
Figure 8 blind flange Dimensions Standard
Specification chart of Stainless Steel Spectacle Blind Flange
Spectacle blind flange ASME B16.48 Rating Pressure
Available Material of Spectacle blind flange
Spectacle blind flange Stock List

What is Spectacle Blind Flanges supposed to mean ?

ASME B16.48 spectacle blind flange is the one which is used to separate a section of line or piece of equipment that needs to be removed from the service. It is a steel plate which cuts two discs of certain thickness and the other diameter is a ring whose inside diameter is equal to that flange. Basically these are used to connect two pipes with each other. ANSI B16.48 class 150 spectacle blind flange has dimensions with various factors and those are outside diameter, inside diameter, center line, thickness, width and lot more. These are used in applications like automobile, engineering, railway and pipeline engineering and in many other sectors.

Figure 8 blind flange Dimensions Standard

Dimensions of Class 150 Spectacle Blind Flange

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

Spectacle blind flange 300 Schedule Dimensions

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

Dimension table of Class 600 Spectacle Blind Flanges

NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W
1/2	51	16	65	6.4	38
3/4	64	21	80	6.4	38
1	70	27	90	6.4	57
1¼	79	37	100	9.7	57
1½	92	43	115	9.7	67
2	108	55	125	9.7	57
2½	127	67	150	12.7	67
3	146	83	170	12.7	67
3½	159	96	185	15.7	76
4	191	108	215	15.7	76
5	238	135	265	19.1	86
6	264	162	290	22.4	86
8	318	212	350	28.4	95
10	397	265	430	35.1	105
12	454	315	490	41.1	105
14	489	346	525	44.5	114
16	562	397	605	50.8	124
18	610	448	655	53.8	133
20	679	497	725	63.5	133
24	787	597	840	73.2	152
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Dimensions of Class 900 Spectacle Blind Flange

NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W
1/2	60	16	80	6.4	38
3/4	67	21	90	6.4	41
1	76	27	100	6.4	57
1¼	86	37	110	9.7	57
1½	95	43	125	9.7	67
2	140	55	165	12.7	57
2½	162	67	190	12.7	67
3	165	83	190	15.7	67
4	203	108	235	19.1	76
5	244	135	280	22.4	86
6	286	162	320	25.4	86
8	356	212	395	35.1	95
10	432	265	470	41.1	105
12	495	315	535	47.8	105
14	518	346	560	53.8	114
16	572	397	615	60.5	124
18	635	448	685	66.5	133
20	696	497	750	73.2	133
24	835	597	900	88.9	152
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Dimension Chart of Class 1500 Spectacle Blind Flange

NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W
1/2	61	16	80	6.4	38
3/4	67	21	90	9.7	41
1	76	27	100	9.7	64
1¼	86	35	110	9.7	64
1½	95	41	125	12.7	70
2	140	53	165	12.7	70
2½	162	63	190	15.7	76
3	172	78	205	19.1	76
4	206	102	240	22.4	89
5	251	128	290	28.4	89
6	279	154	320	35.1	89
8	349	203	395	41.1	102
10	432	255	480	50.8	114
12	518	303	570	60.5	114
14	575	333	635	66.5	127
16	638	381	705	76.2	133
18	702	429	775	85.9	146
20	752	478	830	95.3	152
24	899	575	990	111.3	178
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Class 2500 Spectacle Blind Flange Dimensions

NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W
1/2	67	16	90	9.7	38
3/4	73	21	95	9.7	41
1	83	27	110	9.7	64
1¼	102	35	130	12.7	64
1½	114	41	145	15.7	70
2	143	53	170	15.7	70
2½	165	63	195	19.1	76
3	194	78	230	22.4	76
4	232	102	275	28.4	89
5	276	128	325	35.1	89
6	314	154	370	41.1	89
8	384	198	440	53.8	102
10	473	248	540	66.5	114
12	546	289	620	79.2	114
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Specification chart of Stainless Steel Spectacle Blind Flange

Size Chart	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Spectacle Blind Flange Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
UNI	6Bar 10Bar 16Bar 25Bar 40Bar
EN	6Bar 10Bar 16Bar 25Bar 40Bar
Spectacle Blind Flange Pressure Rating ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Spectacle Blind Flange Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of Spectacle Blind Flange	forged / Threaded / Screwed / Plate
Production technique	forged, Heat treated and machined
Connect Type/ Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design	As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations
Origin	Indian / West Europe / Japan / USA / Korean
Manufacturer of	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Spectacle Blind Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Spectacle Blind Flange The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment	Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

Spectacle blind flange ASME B16.48 Rating Pressure

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

Available Material of Spectacle blind flange

Carbon Steel	ASTM A105 ASME SA105 DIN 1.0402 DIN 1.0460 DIN 1.0619 ASTM A105N ASME SA105N ASTM A350 LF2 ASME SA350 High Yield CS ASTM A694
Stainless Steel	ASTM A182 F304 ASTM A182 F304L ASTM A182 F316 ASTM A182 F316L ASTM A182 F317 ASTM A182 F317L ASTM A182 F321 ASTM A182 F321H ASTM A182 F347 ASTM A182 F347H
Alloy Steel	ASTM A182 F5 ASTM A182 F9 ASTM A182 F11 ASTM A182 F22 ASTM A182 F91
Inconel	Inconel 600 Inconel 601 Inconel 625 Inconel 718 Inconel x750
Copper	T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel	Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass	3602 / 2604 / H59 / H62 / etc.
Hastelloy	Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel	Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20	Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel	Nickel 200, Nickel 201
Duplex	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy	Incoloy 800, Incoloy 800H, Incoloy 800HT (UNS N08800), Incoloy 825 (UNS N08825)
254 Smo	SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic	Nimonic 75, Nimonic 80A, Nimonic 90
Other material	Tin bronze, Alumunum bronze, Lead bronze
Titanium	ASTM B381 Titanium Gr. 1 ASTM B381 Titanium Gr. 2 ASTM B381 Titanium Gr. 4 ASTM B381 Titanium Gr. 5 ASTM B381 Titanium Gr. 7

Spectacle blind flange Stock List

ANSI B16.5 class 150 Spectacle Blind Flange	JIS Spectacle Blind Flange
Spectacle Blind Flange RF	High Quality Spectacle Blind Flanges
Flat Face Spectacle Blind Flanges	Spectacle Blind Flange Dimensions
Spectacle Blind Flange	Raised Face Spectacle Blind Flanges
Spectacle Blind Plate Flanges	ANSI 150 Spectacle Blind Flange
Carbon Steel Spectacle Blind Flange	ASME B16.47 Series A and B Spectacle Blind Flanges
ANSI B16.48 Spectacle Blind Flanges	DIN Spectacle Blind Flange
ASME B16.48 Spectacle Blind Flanges	ANSI B16.5 Class 150 Spectacle Blind Flanges
ASME B16.5 Spectacle Blind Flanges	Spectacle Blind Flanges Flat Face

Spectacle Blind Flange manufacturer in India