Spectacle Blind Flanges

Neminox Steel & Engineering Co. are Manufacturer, Exporter and Supplier of Spectacle Blind Flanges. ANSI B 16.5 Spectacle Blind Flanges are ideal for lower pressure applications. Spectacle Blind Flanges are used on heat coupling of pipes and are customized as per the specifications of our clients. Spectacle Blind Flanges are made using premium best quality materials.

Size	:	1/2" NB TO 48"NB.
Class	:	150#, 300#,400 #,600#,900#, 1500# & 2500 #.
Standards	:	ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN	:	DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S	:	BS4504 , BS4504, BS1560, BS10

Grade:

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,

Duplex Steel Spectacle Blind Flanges:

UNS S31803, UNS S32205

Super Duplex Steel Spectacle Blind Flanges:

UNS S32750, UNS S32950

Nickel Alloys Spectacle Blind Flanges:

Monel (400 & K500)

Inconel (600, 601, 625 & 825)

Incolloy (800, 800H)

Alloy 20

Cupro Nickel (90/10, 70/30, 66/30/2/2)

Hastelloy (C-4, C-22, C276, B-2)

Nickel (200 / 201 / 205)

Duplex Steel

SS 904L

Titanium (1 & 2) Etc.

Carbon Steel Spectacle Blind Flanges:

ASTM A 105, ASTM A 350 LF 2, ASTM A694 F52 - F60 - F65 - F70

Alloy Steel Spectacle Blind Flanges:

ASTM A 182, GR F1, F11, F22, F5, F9, F91

Copper Alloys 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)

Dimensions –

Class 150 Spectacle Blind Flanges Dimensions:

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

Class 300 Spectacle Blind Flanges Dimensions:

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

Class 600 Spectacle Blind Flanges Dimensions:

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

Class 600 Spectacle Blind Flanges Dimensions:

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

ISO Approved Manufacturer & Exporter of Spectacle Blind Flanges.