Spectacle Blind Flanges

Shiv Shakti Forge is a leading manufacturer, supplier, and exporter of Stainless Steel, Inconel, Hastelloy, and Monel flanges. We also specialize in high-quality spade rings and ring spacers, which are similar to spectacle blinds but are not attached. Spectacle blind flanges are often used in special situations, with the key advantage being that they can be fitted to pipes without welding. Our range can be custom-made to meet customer requirements, and we welcome third-party inspections from organizations like Lloyd’s Register, TUV, DNV, BV, SGS, IEI, SAI, and more. We also produce spade ring spacer flanges tailored to client specifications.

Size	:	½” (15 NB) to 48″ (1200NB)
Class	:	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150#, 2.0MPa, 5.0MPa, 10.0MPa,
		15.0MPa, 25.0MPa, 42.0MPa.
Material	:	Grade
In Form	:	SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Specialize	:	As per drawing
Standard	:	ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

Connection Type	:	Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female,
		Large Tongue & Groove, Small Tongue & Groove
Type of Flanges	:	Weld Neck Flanges – WNRF, Socket Weld Flanges – SWRF, Slip On Raise Face – SORF, Blind Raise
		Face- BLRF, Spectacle Blind, Ring Joint, Large Dia Flanges, Orifice Flanges, Girth Flange, Lap Joint
		Flanges, Screwed (Threaded) Flanges, Long Weld Neck Flanges, Reducing.
Stainless Steel Spectacle Blind Flanges	:	ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Spectacle Blind Flanges	:	ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46,
		F52, F60, F65, F70
Alloy Steel Spectacle Blind Flanges	:	ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Spectacle Blind Flanges	:	ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61, 2205 (UNS No. S31803), 2507
		(UNS No. S32750)
Nickel Alloy Spectacle Blind Flanges	:	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500
		(UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600
		(UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276
		(UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)
Copper Alloy Spectacle Blind Flanges	:	UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni-
		90/10), C 71500 (Cu -Ni- 70/30)

Class 150 SPECTACLE BLINDS

Class 150 SPECTACLE BLIND

Class 150 SPECTACLE BLINDS

NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W
1/2	45	16	60	3	38
3/4	54	21	70	3	38
1	64	27	80	3	38
1¼	73	42	90	6.4	38
1½	83	48	100	6.4	38
2	102	61	120	6.4	51
2½	107	73	140	6.4	51
3	133	89	150	6.4	64
3½	159	102	175	9.7	64
4	172	114	190	9.7	64
5	194	141	215	9.7	76
6	219	168	240	12.7	76
8	276	219	300	12.7	76
10	337	273	360	15.7	102
12	406	324	430	19.1	102
14	448	356	475	19.1	108
16	511	406	460	22.4	108
18	546	457	580	25.4	114
20	603	508	635	28.4	121
24	714	610	750	31.8	140
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Class 300 SPECTACLE BLINDS

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	38
1¼	79	42	100	6.4	38
1½	92	48	115	6.4	38
2	108	61	125	9.7	51
2½	127	73	150	9.7	51
3	146	89	170	9.7	64
3½	162	102	185	12.7	64
4	178	114	200	12.7	64
5	213	141	235	15.7	76
6	248	168	270	15.7	76
8	305	219	330	22.4	76
10	359	273	385	25.4	102
12	419	324	450	28.4	102
14	483	356	515	31.8	108
16	536	406	570	38.1	108
18	594	457	630	41.1	114
20	651	508	685	44.5	121
24	772	610	810	50.8	140
NPS	Outside Ø A	Inside Ø B	Centerline C	Thickness t	Web Width W

Class 600 SPECTACLE BLINDS

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

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Shiv Shakti Forge manufactures industrial steel flanges using the finest quality raw materials and advanced production methods. Designed for durability and reliability, our flanges are widely used across numerous industries.

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Shop No. 23, Bhagyashree Building, 2nd Parshiwada, V P Road, Girgaon, Mumbai 400004, Maharashtra, India.

Mob : +91 9983923435 | +91 9930195263
Phone: 022-67496352

E-Mail : sales@shivshaktiforge.com | shivshaktiforge1983@gmail.com

Website: www.shivshaktiforge.com |