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Spectacle Blind & Spade Flanges

Duplex Steel Spectacle Blind Flange, Carbon Steel Spectacle Blind Flange, Stainless Steel Spectacle Blind Flange, EN1092-2 Spectacle Blind Flanges Manufacturer in Mumbai, India.

Spectacle Blind & Spade Flanges

Spectacle Blind Flange PN16, Hastelloy Spectacle Blind Flange in India, Nickel Alloys Spectacle Blind Flange, Duplex Steel Spectacle Blind Flanges Manufacturers & Suppliers in India.

Spectacle Blind & Spade Flanges Specification

ASME B16.5 Spectacle Blind Flange Size Chart 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Grooved Spectacle Blind Flange Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Spectacle Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Spectacle Flange
Spectacle Flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Spectacle Flange
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Spectacle Flange
UNI 6Bar 10Bar 16Bar 25Bar 40Bar grooved spectacle blind flange
EN 6Bar 10Bar 16Bar 25Bar 40Bar Forged grooved spectacle blind flange
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized ASME B16.5 Spectacle Blind Flange
Most common types of Spectacle Blind Flange 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 ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Spectacle Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI 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 Forged grooved spectacle blind flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Grooved Spectacle Blind Flange Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Export to Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Stainless Steel Spectacle Blind & Spade Flanges

Alloy Steel Spectacle Blind & Spade Flanges

Carbon Steel Spectacle Blind & Spade Flanges

Raised Face Spectacle Blind & Spade Flanges

Spectacle Blind & Spade Flanges Material

Stainless Steel Spectacle Blind & Spade 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 Spectacle Blind & Spade 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 Spectacle Blind & Spade Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium Spectacle Blind & Spade 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 Spectacle Blind & Spade Flanges T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Spectacle Blind & Spade Flanges ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Inconel Spectacle Blind & Spade Flanges ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.36 Class 150 Spectacle Blind & Spade Flanges
Hastelloy Spectacle Blind & Spade Flanges ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Spectacle Blind & Spade Flanges ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Spectacle Blind & Spade Flanges ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Spectacle Blind & Spade Flanges 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Alloy Spectacle Blind & Spade Flanges ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex Steel Spectacle Blind & Spade Flanges S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Spectacle Blind & Spade Flanges S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Spectacle Blind & Spade Flanges ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 SMO Spectacle Blind & Spade Flanges ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Spectacle Blind & Spade Flanges Nimonic 75, Nimonic 80A, Nimonic 90
Brass Spectacle Blind & Spade Flanges 3602 / 2604 / H59 / H62 / etc.
Other Spectacle Blind & Spade Flanges material Tin bronze, Alumunum bronze, Lead bronze

Dimension of Spectacle Blind Flanges

Class 150 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 45 60 3 38 2 15.875 0.07 0.03 0.03
3/4 20 21 54 70 3 38 2 15.875 0.1 0.05 0.04
1 25 27 64 80 3 38 2 15.875 0.14 0.07 0.06
1 1/4 32 42 73 90 6.4 38 4 15.875 0.35 0.21 0.14
1 1/2 40 48 83 100 6.4 38 4 15.875 0.46 0.27 0.18
2 50 61 102 120 6.4 51 4 19.05 0.68 0.41 0.26
2 1/2 65 73 107 140 6.4 51 4 19.05 0.7 0.46 0.24
3 80 89 133 150 6.4 64 4 19.05 1.1 0.71 0.39
3 1/2 90 102 159 175 9.7 64 5 19.05 2.44 1.54 0.9
4 100 114 172 190 9.7 64 5 19.05 2.81 1.8 1.01
5 130 141 194 215 9.7 76 5 22.225 3.37 2.29 1.08
6 150 168 219 240 12.7 76 7 22.225 5.39 3.82 1.57
8 200 219 276 300 12.7 76 10 22.225 8.32 6.07 2.25
10 250 273 337 360 15.7 102 12 25.4 15.04 11.19 3.84
12 300 324 406 430 19.1 102 15 25.4 26.95 19.77 7.18
14 350 356 448 475 19.1 108 15 28.575 32.94 24.07 8.87
16 400 406 511 540 22.4 108 17 28.575 50.27 36.73 13.54
18 450 457 546 580 25.4 114 20 31.75 61.79 47.55 14.23
20 500 508 603 635 28.4 121 22 31.75 83.67 64.85 18.82
24 600 610 714 750 31.8 140 24 34.925 129.3 101.8 27.49
Class 300 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 51 65 6.4 38 4 15.875 0.19 0.1 0.09
3/4 20 21 64 80 6.4 38 4 19.05 0.31 0.16 0.14
1 25 27 70 90 6.4 38 4 19.05 0.36 0.19 0.16
1 1/4 32 42 79 100 6.4 38 4 19.05 0.43 0.25 0.17
1 1/2 40 48 92 115 6.4 38 4 22.225 0.58 0.34 0.24
2 50 61 108 125 9.7 51 5 19.05 1.19 0.71 0.48
2 1/2 65 73 127 150 9.7 51 5 22.225 1.64 0.98 0.65
3 80 89 146 170 9.7 64 5 22.225 2.11 1.29 0.81
3 1/2 90 102 162 185 12.7 64 7 22.225 3.35 2.09 1.26
4 100 114 178 200 12.7 64 7 22.225 4.01 2.52 1.49
5 130 141 213 235 15.7 76 8 22.225 6.98 4.47 2.51
6 150 168 248 270 15.7 76 8 22.225 9.34 6.06 3.28
8 200 219 305 330 22.4 76 17 25.4 19.42 13.08 6.33
10 250 273 359 385 25.4 102 20 28.575 29.22 20.55 8.66
12 300 324 419 450 28.4 102 22 31.75 43.9 31.31 12.58
14 350 356 483 515 31.8 108 24 31.75 67.86 46.58 21.27
16 400 406 536 570 38.1 108 29 34.925 98.04 68.74 29.3
18 450 457 594 630 41.1 114 31 34.925 128.23 91.06 37.16
20 500 508 651 685 44.5 121 34 34.925 164.75 118.43 46.31
24 600 610 772 810 50.8 140 39 41.275 261.55 190.13 71.42
Class 600 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 51 65 6.4 38 4 15.875 0.19 0.1 0.09
3/4 20 21 64 80 6.4 38 4 19.05 0.31 0.16 0.14
1 25 27 70 90 6.4 57 4 19.05 0.36 0.19 0.16
1 1/4 32 37 79 100 9.7 57 5 19.05 0.67 0.38 0.29
1 1/2 40 43 92 115 9.7 67 5 22.225 0.91 0.51 0.4
2 50 55 108 125 9.7 57 5 19.05 1.23 0.71 0.52
2 1/2 65 67 127 150 12.7 67 7 22.225 2.21 1.28 0.92
3 80 83 146 170 12.7 67 7 22.225 2.85 1.7 1.15
3 1/2 90 96 159 185 15.7 76 8 25.4 4.07 2.49 1.58
4 100 108 191 215 15.7 76 8 25.4 6.04 3.59 2.44
5 130 135 238 265 19.1 86 10 28.575 11.4 6.79 4.6
6 150 162 264 290 22.4 86 12 28.575 15.91 9.8 6.11
8 200 212 318 350 28.4 95 22 31.75 28.05 18.03 10.01
10 250 265 397 430 35.1 105 27 34.925 54 34.74 19.26
12 300 315 454 490 41.1 105 31 34.925 80.78 53.2 27.58
14 350 346 489 525 44.5 114 34 38.1 100.19 66.82 33.36
16 400 397 562 605 50.8 124 39 41.275 151.24 100.76 50.48
18 450 448 610 655 53.8 133 41 44.45 183.62 125.71 57.9
20 500 497 679 725 63.5 133 48 44.45 269.2 183.85 85.35
24 600 597 787 840 73.2 152 55 50.8 405.6 284.72 120.88
Class 900 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 60 80 6.4 38 4 22.225 0.27 0.14 0.13
3/4 20 21 67 90 6.4 41 4 22.225 0.34 0.18 0.16
1 25 27 76 100 6.4 57 4 25.4 0.43 0.23 0.2
1 1/4 32 37 86 110 9.7 57 5 25.4 0.81 0.45 0.36
1 1/2 40 43 95 125 9.7 67 5 28.575 0.98 0.54 0.43
2 50 55 140 165 12.7 57 7 25.4 2.88 1.56 1.32
2 1/2 65 67 162 190 12.7 67 7 28.575 3.82 2.09 1.73
3 80 83 165 190 15.7 67 8 25.4 4.68 2.68 2
4 100 108 203 235 19.1 76 10 31.75 8.48 4.94 3.54
5 130 135 244 280 22.4 86 12 34.925 14.18 8.37 5.81
6 150 162 286 320 25.4 86 13 31.75 21.9 13.04 8.86
8 200 212 356 395 35.1 95 27 38.1 45.96 27.93 18.02
10 250 265 432 470 41.1 105 31 38.1 78.21 48.16 30.04
12 300 315 495 535 47.8 105 36 38.1 117.31 73.55 43.76
14 350 346 518 560 53.8 114 41 41.275 140.86 90.65 50.2
16 400 397 572 615 60.5 124 46 44.45 188.73 124.31 64.42
18 450 448 635 685 66.5 133 50 50.8 252.97 168.39 84.57
20 500 497 696 750 73.2 133 55 53.975 331.81 222.68 109.13
24 600 597 835 900 88.9 152 67 66.675 579.52 389.25 190.27
Class 1500 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 61 80 6.4 38 4 22.225 0.28 0.14 0.13
3/4 20 21 67 90 9.7 41 5 22.225 0.52 0.27 0.24
1 25 27 76 100 9.7 64 5 25.4 0.65 0.35 0.3
1 1/4 32 35 86 110 9.7 64 5 25.4 0.82 0.45 0.37
1 1/2 40 41 95 125 12.7 70 7 28.575 1.3 0.71 0.58
2 50 53 140 165 12.7 70 7 25.4 2.9 1.56 1.33
2 1/2 65 63 162 190 15.7 76 8 28.575 4.78 2.58 2.19
3 80 78 172 205 19.1 76 10 31.75 6.36 3.54 2.81
4 100 102 206 240 22.4 89 12 34.925 10.47 5.96 4.5
5 130 128 251 290 28.4 89 15 41.275 19.55 11.23 8.31
6 150 154 279 320 35.1 89 18 38.1 29.08 17.15 11.93
8 200 203 349 395 41.1 102 31 44.45 52.23 31.43 20.8
10 250 255 432 480 50.8 114 39 50.8 98.33 59.53 38.79
12 300 303 518 570 60.5 114 46 53.975 169.01 101.94 67.06
14 350 333 575 635 66.5 127 50 60.325 229.84 138.07 91.76
16 400 381 638 705 76.2 133 58 66.675 320.1 194.78 125.32
18 450 429 702 775 85.9 146 65 73.025 432.4 265.84 166.56
20 500 478 752 830 95.3 152 72 79.375 540.14 338.44 201.7
24 600 575 899 990 111.3 178 84 92.075 898.71 564.9 333.8
Class 2500 Spectacle Blind Flange Dimesions
Size in Inch Size in MM Internal Dia. Outer Dia. Center to Center Thick. Web Width Web Thick. Hole Dia Spec. Blind Weight in Kg Paddle Blank Weight in kg Paddle Spacer Blank Weight in kg
1/2 15 16 67 90 9.7 38 5 22.225 0.53 0.27 0.25
3/4 20 21 73 95 9.7 41 5 22.225 0.62 0.32 0.29
1 25 27 83 110 9.7 64 5 25.4 0.79 0.41 0.37
1 1/4 32 35 102 130 12.7 64 7 28.575 1.56 0.82 0.73
1 1/2 40 41 114 145 15.7 70 8 31.75 2.39 1.28 1.11
2 50 53 143 170 15.7 70 8 28.575 3.75 2.01 1.73
2 1/2 65 63 165 195 19.1 76 10 31.75 6.05 3.26 2.78
3 80 78 194 230 22.4 76 12 34.925 9.73 5.29 4.43
4 100 102 232 275 28.4 89 22 41.275 17.34 9.59 7.74
5 130 128 276 325 35.1 89 27 47.625 29.97 16.79 13.17
6 150 154 314 370 41.1 89 31 53.975 44.77 25.44 19.32
8 200 198 384 440 53.8 102 41 53.975 86.39 49.82 36.57
10 250 248 473 540 66.5 114 50 66.675 161.18 93.43 67.74
12 300 289 546 620 79.2 114 60 73.025 255.01 148.27 106.73

JIS Spectacle Blind Flange Dimensions

Nominal Size Outside diameter of flange Diameter of bolt hole centre circle Diameter of bolt hole Number of bolt Nominal designation
of thread of bolt		 Inside diameter Inside diameter Depth of socket Thickness of Flange Diameter of hub Small diameter side Diameter of hub Large diameter side Total length of flange Radius of fillet
A D C h d0 d(18) S t a b T r
10
15
20		 90
95
100		 65
70
75		 15
15
15		 4
4
4		 M12
M12
M12		 17.8
22.2
27.7		 12.7
16.1
21.6		 10
10
13		 12
12
14		 23
27
33		 26
30
36		 16
16
20		 4
4
4
25
32
40		 125
135
140		 90
100
105		 19
19
19		 4
4
4		 M16
M16
M16		 34.5
43.2
49.1		 27.6
35.7
41.6		 13
13
13		 14
16
16		 41
50
56		 44
53
60		 20
22
24		 4
4
4
50
65
80		 155
175
185		 120
140
150		 19
19
19		 4
4
8		 M16
M16
M16		 61.1
77.1
90.0		 52.9
67.9
80.7		 16
16
16		 16
18
18		 69
86
99		 73
91
105		 24
27
30		 4
4
4

Spectacle Blind Flange Pressure Ratings

Class Flanges pressure rating in psig for Spectacle Blind Flange ASME
Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 285 740 985 1480 2220 3705 6170
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
850 65 320 425 640 955 1595 2655
900 50 230 305 460 690 1150 1915
950 35 135 185 275 410 685 1145
1000 20 85 115 170 255 430 715

Other Types of Spectacle Blind & Spade Flanges

  • Spectacle Blind Flange Din En 1092-1
  • ASME SB564 UNS NO6601 Spectacle Blind Flanges
  • Spectacle Blind Flange Weight 150#
  • Super Duplex Spade Flanges
  • ANSI B16.36 Spade Raised Face Flanges
  • Monel Spectacle Blind Flange
  • Stainless Steel EN1092-2 Spectacle Blind Flanges
  • Brass Spectacle Blind Flanges Supplier
  • Copper Nickel Spectacle Blind Flange Wholesaler
  • Spectacle Blind Flanges Supplier in India
  • ANSI B16.36 Nickel Alloy Spade Flanges
  • Spectacle Blind Flange Dealer in India

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