Flanges

FLANGES

SPECTACLE BLIND

Our product range also comprises of Carbon Steel Flanges, Spectacle Flange and Duplex Flanges.These are durable in quality and are precision made. These spectacle flanges are made from high quality carbon steel and stainless steel and are offered in different dimensions & sizes that ensure that no compromise is made the aspect of quality.

Spectacle Flanges Range
½" (15 NB) to 48" (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. Available with NACE MR 01-75

Stainless Steel Spectacle Flanges
Grade : 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L, 317, 317L, 321, 347, 347 H, 409, 410, 410S, 420, 430L

Duplex Steel Spectacle Flanges
Grade : 2205 (UNS No. S31803), 2507 (UNS No. S32750)

Nickel Alloy Spectacle Flanges
Grade : 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 Flanges
Grade : 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

Spectacle Flanges Standard

  • 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
  • OTHER : PLATE, PLATE BLANK

Spectacle Blinds Flanges ANSI B16.5 Class 150 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 150. The ANSI flanges in the class 150 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges. ANSI flanges for class 150 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

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

 

Spectacle Blinds Flanges ANSI B16.5 Class 300 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 300. The ANSI flanges in the class 300 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges. ANSI flanges for class 300 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

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

Spectacle Blinds Flanges ANSI B16.5 Class 400 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 400. The ANSI flanges in the class 400 specification cover slip-ons, weld necks, lap joints, blinds, and threaded flanges. ANSI flanges for class 400 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

Spectacle Blinds Flanges ANSI B16.5 Class 600 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 600. The ANSI flanges in the class 600 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges. ANSI flanges for class 600 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

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

 

Spectacle Blinds Flanges ANSI B16.5 Class 900 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 900. The ANSI flanges in the class 900 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges. ANSI flanges for class 900 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W
1/26016806.438
3/46721906.441
176271006.457
86371109.757
95431259.767
21405516512.757
1626719012.767
31658319015.767
420310823519.176
524413528022.486
628616232025.486
835621239535.195
1043226547041.1105
1249531553547.8105
1451834656053.8114
1657239761560.5124
1863544868566.5133
2069649775073.2133
2483559790088.9152
 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W

 

Spectacle Blinds Flanges ANSI B16.5 Class 1500 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 1500. The ANSI flanges in the class 1500 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges. ANSI flanges for class 1500 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W
1/26116806.438
3/46721909.741
176271009.764
86351109.764
954112512.770
21405316512.770
1626319015.776
31727820519.176
420610224022.489
525112829028.489
627915432035.189
834920339541.1102
1043225548050.8114
1251830357060.5114
1457533363566.5127
1663838170576.2133
1870242977585.9146
2075247883095.3152
24899575990111.3178
 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W

 

Spectacle Blinds Flanges ANSI B16.5 Class 2500 Flanges

ANSI flanges are available at Steel Tubes India Flange in class 2500. The ANSI flanges in the class 2500 specification cover slip-ons, weld necks, lap joints, blinds, and threaded flanges. ANSI flanges for class 2500 are provided by Steel Tubes India Flange as forgings unless otherwise specified.

 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W
1/26716909.738
3/47321959.741
183271109.764
1023513012.764
1144114515.770
21435317015.770
1656319519.176
31947823022.476
423210227528.489
527612832535.189
631415437041.189
838419844053.8102
1047324854066.5114
1254628962079.2114
 NPS Outside Ø
A
Inside Ø
B
Centerline
C
Thickness
t
Web Width
W

General notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • D = Hole size (where required) should be the same as the flange bolt hole. In practice, these dimensions have been rounded round off upwards.
  • Wt = Thickness of the web (or tie bar) should be 6 mm minimum, or equal to Thickness (t) if less than 6 mm.
  • Spectacle Blinds Flanges should be made from a plate or forging specification, approved for use by ASME B31.3, of essentially the same chemical composition as the mating flanges and piping involved.
  • Spectacle Blinds Flanges according to ASME B16.48 may be used for installation between ASME B16.5 flanges
  • Depending on a customer specification, some dimensions can be different from what on this page is defined.