Groove & Tongue Flanges

We are Manufacturer, Exporter and Supplier of High Quality Spectacle Blind Flanges. A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. We are offered in different dimensions & sizes that ensure that no compromise is made the aspect of quality. our range of Spectacle Blind Flanges can also manufactured as per the customer’s requirement. 

Flanges are made of many materials including metals such as Stainless Steel, Carbon Steel, Alloy Steel, Nickel Alloy, Titanium Pipes, Duplex & Super Duplex, Tool Steel, Chrome Molly, Cupro Nickel, Copper Nickel, Corten Steel Pipe, Brass, Galvanised Steel

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)
Spectacle Blinds Flanges ANSI B16.5 Class 150 Flanges
Class 150 SPECTACLE BLINDS
NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W
1/2451660338
3/4542170338
1642780338
7342906.438
83481006.438
2102611206.451
107731406.451
3133891506.464
1591021759.764
41721141909.764
51941412159.776
621916824012.776
827621930012.776
1033727336015.7102
1240632443019.1102
1444835647519.1108
1651140646022.4108
1854645758025.4114
2060350863528.4121
2471461075031.8140
 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
1/25116656.438
3/46421806.438
17027906.438
79421006.438
92481156.438
2108611259.751
127731509.751
3146891709.764
16210218512.764
417811420012.764
521314123515.776
624816827015.776
830521933022.476
1035927338525.4102
1241932445028.4102
1448335651531.8108
1653640657038.1108
1859445763041.1114
2065150868544.5121
2477261081050.8140
 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
1/25116656.438
3/46421806.438
17027906.457
79371009.757
92431159.767
2108551259.757
1276715012.767
31468317012.767
1599618515.776
419110821515.776
523813526519.186
626416229022.486
831821235028.495
1039726543035.1105
1245431549041.1105
1448934652544.5114
1656239760550.8124
1861044865553.8133
2067949772563.5133
2478759784073.2152
 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W
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