Best Deals on Raised Face Spectacle Blind Flanges, Class 300 Spectacle Blind Flanges, ASME B16.5 Raised Face Spectacle Blind Flange, Carbon Steel Spectacle Blind Flange, Nickel Alloy Spectacle Blind Flanges, ANSI B16.5 Spectacle Blind Flanges, ASME / ANSI B16.5 Spectacle Blind Flanges, Stainless Steel Spectacle Blind Flange Supplier in India.

Kalpatru is a popular distributor of Spectacle Blind Flanges, which is a non-stabilized austenitic steel with low carbon content. Altering the interstitial levels tends to enhance certain properties; Stainless Steel Spectacle Blind Flanges is a popular alloy where medium strength and good toughness are required. This high alloy Carbon Steel Spectacle Blind Flanges is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. Super Duplex Steel Spectacle Blind Flanges can be strengthened with a relatively simple heat treatment to offer very high mechanical properties. When performing precipitation hardening for Nickel Alloy Spectacle Blind Flanges, one may use solution treatment and aging (STA) for a wide range of strength levels and ductility. The strength and light weight structure of Inconel Spectacle Blind Flanges is skin friendly, 100% rust proof, none magnetic, also an item neatly tucked away in a survival kit for when a disaster strikes. Typically for Monel Spectacle Blind Flanges, low cutting speeds, heavy feed rates and copious amounts of cutting fluid are recommended. Hastelloy Spectacle Blind Flanges is one of the few steels that at temperatures of up to 35 °C/95 °F provides full resistance in dilute sulphuric acid environments within the entire range of concentration, from 0 to 100%. Titanium Spectacle Blind Flanges is a low carbon high alloy austenitic stainless steel which is widely used in applications where the corrosion properties are not adequate.

SS Spectacle Blind Flanges, Hastelloy Spectacle Blind Flange Dealer, Large Selection of Inconel Spectacle Blind Flanges, Class 1500 Spectacle Blind Flanges, Monel Spectacle Blind Flanges, ANSI B16.5 Spectacle Blind Flange, ANSI B16.5 150 LBS Spectacle Blind Flange, Alloy Steel Spectacle Blind Flanges, High Quality Duplex Steel Spectacle Blind Flanges, ANSI/ASME B16.5 Class 600 Spectacle Blind Flange Exporter.

Stainless Steel Spectacle Blind Flanges

ASME B16.5 Spectacle Blind Flanges Specification

Size

½" (15 NB) to 48" (1200NB)

Dimension Standard

ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Class / Pressure Rating

150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

DIN

DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673

BS

BS4504 , BS4504, BS1560, BS10

Flange Face Type

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Testing and Documents

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports

Packing

Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

ASME B16.48 ANSI B16.48 Class 150 Spectacle Blind Flanges Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
ANSI B16.48 Class 150 Spectacle Blind Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
ANSI B16.48 Class 150 Spectacle Blind Flanges Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
ANSI B16.48 Class 150 Spectacle Blind Flanges 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
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of ANSI B16.48 Class 150 Spectacle Blind Flanges Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
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

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
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of

ASME DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ANSI B16.48 Class 150 Spectacle Blind Flanges: -BS Flange, EN Flange, API 6A Flanges, ASME Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, AWWA C207 Flanges, GOST Flanges, PSI Flangse

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ASME B16.5, ASME B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ASME : ASME B16.5, ASME B16.47(API605), MSS SP44, ASME B16.36, ASME B16.48
  • ASME B16.5, ASME B16.47, MSS SP44, ASME B16.36, ASME 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 ANSI B16.5 Class 150 Socket Weld Flanges
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
ANSI B16.48 Class 150 Spectacle Blind Flanges Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.

Stainless Steel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Carbon Steel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Alloy Steel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper Nickel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Inconel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.5 Class 150 Blind Flanges
Hastelloy ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Nickel ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex ANSI B16.5 Class 150 Spectacle Blind Flanges S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex ANSI B16.5 Class 150 Spectacle Blind Flanges S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy ANSI B16.5 Class 150 Spectacle Blind Flanges ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges

Spectacle Blind Flanges Material & Grades

Stainless Steel Spectacle Blind Flanges
ASTM A182 F 304, 304L, 304H, 309, 310, 310S, 316, 316L, 317, 317L, 321, 321H, 347, 347H, 446, 904L
Carbon Steel Spectacle Blind Flanges
ASTM A105, ASTM A694 Gr. F42, 46, 52, 56, 60, 65, 70
Alloy Steel Spectacle Blind Flanges
ASTM A182, F1, F5, F9, F11, F22, F91
Duplex Steel Spectacle Blind Flanges
ASTM A182, F44, F45, F51, F53, F55, F60, F61
Super Duplex Spectacle Blind Flanges
ASTM A182, F44, F45, F51, F53, F55, F60, F61
High Nickel Alloy Spectacle Blind Flanges
ASTM B564, B160, B472, B162, Nickel 200 (UNS No. No2200), 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 2 & 5), Cupro-Nickel 70/30, Cupro-Nickel 90/10.
Low Temperature Carbon Steel Spectacle Blind Flanges
ASTM A350, LF2, LF3

Dimensions of Spectacle Blind Flanges

Spectacle Blind Flanges dimensions

Class 150 SPECTACLE BLINDS Flange

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
73 42 90 6.4 38
83 48 100 6.4 38
2 102 61 120 6.4 51
107 73 140 6.4 51
3 133 89 150 6.4 64
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 FLANGE

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
79 42 100 6.4 38
92 48 115 6.4 38
2 108 61 125 9.7 51
127 73 150 9.7 51
3 146 89 170 9.7 64
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 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
79 37 100 9.7 57
92 43 115 9.7 67
2 108 55 125 9.7 57
127 67 150 12.7 67
3 146 83 170 12.7 67
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

 

Class 900 SPECTACLE BLINDS 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
86 37 110 9.7 57
95 43 125 9.7 67
2 140 55 165 12.7 57
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

 

Class 1500 SPECTACLE BLINDS 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
86 35 110 9.7 64
95 41 125 12.7 70
2 140 53 165 12.7 70
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 BLINDS FLANGE

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
102 35 130 12.7 64
114 41 145 15.7 70
2 143 53 170 15.7 70
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
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 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 flange and piping involved.
  • Spectacle Blinds according to ASME B16.48 may be used for installation between ASME B16.5 flange
  • Depending on a customer specification, some dimensions can be different from what on this page is defined.

Notes
1. Dimensions are in millimeters unless otherwise indicated.
2. The length of the stud bolt does not include the height of the chamfers (points).

 

ASME B16.5 Spectacle Blind Flanges Price List

We offer wide range of industrial Spectacle Blind Flanges that in compliance with IS, BS and DIN standards at best market prices in India. To know more about the latest price of Stainless Steel Spectacle Blind Flanges Please Call +91 22-66337137 or Send an Email to info@flangesbolts.com

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Spectacle Blind Flanges Application Area

Our products range of Spectacle Blind Flanges find application in various areas such as: Petro-Chemical Industries, Ship Building Industries, Heavy Engineering Industries, Fertilizer Plants, power Generation Units ( Nuclear, Hydro or Thermal), Civil Industries, Oil Expansion Projects, Off Shore & On Shore Oil Towers, Valves, Vessels, Pumps, Railways, Steel Plants, Civil Construction Industries, Home Fittings etc.