Spectacle Blind Flanges
Spectacle Blind Flanges Manufacturer
![Spectacle Blind Flanges Manufacturer](https://jkflanges.com/wp-content/uploads/2023/02/spectacle-blind-flange.jpg)
The Spectacle blind Flanges are similar to a blind flanges but different because they fit between two flanges. Spectacle blind gets their name from the similarity to pair or eyeglasses. Once side of Spectacle Blind Flanges is fully closed for complete flow shuts off, whereas the other end is open for full flow. In this setup, the blinds can be rotated without having to take the system apart. It also gives visual confirmation if the line is open or close. It is different from a valve in that the blind is a permanent or long-term isolation device.
JK Engineering Works is regarded as one of the leading producers and Industrial Carbon Steel Spectacle Blind Flanges Exporter in India. These ASME B16.5 Stainless Steel Spectacle Blind Flanges are Made of High-Quality Materials and Designed in Compliance with Industry Standards. The durability, excellent performance, and resistance to corrosion of Stainless Steel Spectacle Blind Flanges are well known. These ASME B16.47 Spectacle Blind Flanges are suitable for a range of industries, including pipeline engineering, heavy engineering, and the automotive sector.
Our range of flanges, which are available in standard specifications, can also be customised to meet the needs of our customers. The wall thickness of our carbon steel spectacle blind flange is manufactured to meet the measurements of the corresponding pipes. JK ENGINEERING WORKS provides the most recent technological advancements and maintains a healthy inventory. ready for fastest delivery to any location.
We at JK Engineering Works would like to take the opportunity to introduce as a leading Industrial Carbon Steel Spectacle Blind Flanges Exporter in India. Stainless Steel Spectacle Blind Flanges are stocked or available in the following range of materials and sizes for the oil, gas, petrochemical and allied industries. Pipes with Spectacle Blind Flange can be assembled and disassembled easily. Spectacle Blind Flanges can be forged or plate.
Spectacle Blind Flanges Specification
ASME B16.5 Spectacle Blind Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Spectacle Blind Flanges 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 Blind Flanges Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Spectacle Blind Flange |
Spectacle Blind Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Spectacle Blind Flanges |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Spectacle Blind Flanges |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Spectacle Blind Flanges |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar Spectacle Blind Flanges |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Spectacle Blind Flanges |
Most common types of 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 |
Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UItrasonic 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. · 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 Spectacle Blind Flange · The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
Spectacle Blind Flanges Uses & application | · Bitumen upgraders. · Heavy oil refineries. · Nuclear power (mostly seamless). · Petrochemicals and acids. |
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Spectacle Blind Flanges Material
Prestige quality Spectacle Blind Flanges Manufacturer in India offer these Carbon Steel Spectacle Blind Flanges in DIN, EN, BS, ISO, JIS or ANSI standard.
Carbon Steel Spectacle Blind Flange | 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) |
Stainless Steel Spectacle Blind Flange | 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 |
Alloy Steel Spectacle Blind Flange | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |
Titanium Spectacle Blind Flange | 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 Flange | 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 Flange | ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640 |
Brass Spectacle Blind Flange | 3602 / 2604 / H59 / H62 / etc. |
Inconel Spectacle Blind Flange | ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Spectacle Blind Flange |
Hastelloy Spectacle Blind Flange | ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges |
Monel Spectacle Blind Flange | ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500) |
Alloy 20 Spectacle Blind Flange | ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3 |
Aluminium Spectacle Blind Flange | 5052 /6061/ 6063 / 2017 / 7075 / etc. |
Nickel Spectacle Blind Flange | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
Duplex Spectacle Blind Flange | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
Super Duplex Spectacle Blind Flange | S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
Incoloy Spectacle Blind Flange | ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges |
254 Smo Spectacle Blind Flange | ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547 |
Nimonic Spectacle Blind Flange | Nimonic 75, Nimonic 80A, Nimonic 90 |
Other Spectacle Blind Flange material | Tin bronze, Alumunum bronze, Lead bronze |
Spectacle Blind Flanges Dimensions
![](https://jkflanges.com/wp-content/uploads/2023/02/Capture-1.png)
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 | 0 | 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 |
NPS | Outside Ø A | Inside Ø B | Centerline C | Thickness t | Web Width W |
Class 300 SPECTACLE BLIND 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 | 0 | 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 |
NPS | Outside Ø A | Inside Ø B | Centerline C | Thickness t | Web Width W |
Class 600 SPECTACLE BLIND 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 | 0 | 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 |
NPS | Outside Ø A | Inside Ø B | Centerline C | Thickness t | Web Width W |
Class 900 SPECTACLE BLIND FLANGES
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 |
NPS | Outside Ø A | Inside Ø B | Centerline C | Thickness t | Web Width W |
Class 1500 SPECTACLE BLIND FLANGES
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 | 0 | 9.7 | 41 |
1 | 76 | 27 | 100 | 9.7 | 64 |
1¼ | 86 | 35 | 110 | 9.7 | 64 |
1½ | 95 | 41 | 125 | 12.7 | 70 |
2 | 140 | 53 | 165 | 12.7 | 70 |
2½ | 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 BLIND FLANGES
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 | 10 | 9.7 | 64 |
1¼ | 102 | 35 | 130 | 12.7 | 64 |
1½ | 114 | 41 | 145 | 15.7 | 70 |
2 | 143 | 53 | 170 | 15.7 | 70 |
2½ | 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 |
ASTM Specification of Spectacle Blind Flanges
Carbon Steel Spectacle Blind Flange
- A105 Spectacle Blind Flange
Alloy Steel High-Temp Spectacle Blind Flange
- A182 Gr F1 Spectacle Blind Flange
- A182 Gr F11 Spectacle Blind Flange
- A182 Gr F12 Spectacle Blind Flange
- A182 Gr F22 Spectacle Blind Flange
- A182 Gr F5 Spectacle Blind Flange
- A182 Gr F9 Spectacle Blind Flange
Alloy Steel Low-Temp Spectacle Blind Flange
- A350 Gr LF2 Spectacle Blind Flange
- A350 Gr LF3 Spectacle Blind Flange
Austenitic Stainless Steel Spectacle Blind Flange
- A182 Gr F304 Spectacle Blind Flange
- A182 Gr F316 Spectacle Blind Flange
- A182 Gr F321 Spectacle Blind Flange
- A182 Gr F347 Spectacle Blind Flange
- A182 Gr F304L Spectacle Blind Flange
- A182 Gr F316L Spectacle Blind Flange
- A182 Gr F317 Spectacle Blind Flange
- A182 Gr F317L Spectacle Blind Flange
- A182 Gr F321 Spectacle Blind Flange
- A182 Gr F310 Spectacle Blind Flange
- A182 Gr 347 Spectacle Blind Flange
Nickel Alloy Spectacle Blind Flange
- ASTM B564 Spectacle Blind Flange
- astm b564 uns n06600 Spectacle Blind Flange
- astm b564 uns n06625 Spectacle Blind Flange
- astm b564 uns no4400 Spectacle Blind Flange
- astm b564 uns n08810 Spectacle Blind Flange
- astm b564 uns n08811 Spectacle Blind Flange
- astm b564 uns n08825 Spectacle Blind Flange
- astm b564 uns n04400 Spectacle Blind Flange
- astm b564 uns n10276 Spectacle Blind Flange
- astm b564 uns n10665 Spectacle Blind Flange
Titanium Spectacle Blind Flange
- astm b381 grade f2 Spectacle Blind Flange
- astm b381 f5 Spectacle Blind Flange
- astm b381 f3 Spectacle Blind Flange
- astm b381 f12 Spectacle Blind Flange
- astm b381 f7 Spectacle Blind Flange
- Other grades: ASTM B381 F1, F2, F2H, F3, F4, F5, F6, F7, F7H, F9, F10, F11, F12, F13, F14, F15, F16, F16H, F17, F18, F19, F20, F21, F23, F24, F25, F26 , F26H, F27, F28, F29, F30, F31, F32, F33, F34, F35, F36, F37, F38 Spectacle Blind Flange
Type of Spectacle Blind Flanges we produce:
Spectacle Blind Class 150 Flanges | Spectacle Blind Threaded Flanges |
Spectacle Blind Class 300 Flanges | Spectacle Blind With 1/2 Npt Flanges |
Spectacle Blind Class 1500 Flanges | Spectacle Blind With Threaded Hole Flanges |
Spectacle Blind Class 600 Flanges | Spectacle Blind Weight 150# Flanges |
Spectacle Blind Class 900 Flanges | Spectacle Blind Rtj 1500 Flanges |
Spectacle Blind Class 2500 Flanges | Spectacle Blind Ring Type Joint Flanges |
Spectacle Blind Pn16 Flanges | Spectacle Blind Flat Face Flanges |
Spectacle Blind Pn10 Flanges | Spectacle Blind Slip On Flanges |
Spectacle Blind Pn40 Flanges | Spectacle Blind Rtj 900 Flanges |
Spectacle Blind Pn 160 Flanges | Spectacle Blind Rtj Flanges |
Spectacle Blind Pn 64 Flanges | Spectacle Blind Npt Flanges |
Spectacle Blind Dn150 Pn16 Flanges | Spectacle Blind Jis 5k Flanges |
Spectacle Blind Din 2527 Flanges | Spectacle Blind Jis B2220 Flanges |
Spectacle Blind Din En 1092-1 Flanges | Spectacle Blind Jis 10k Flanges |
Spectacle Blind Din 2633 Flanges | Kf Spectacle Blind Flange |
Spectacle Blind Din 2576 Flanges | Spectacle Blind B16.47 Flanges |
Spectacle Blind Asme B16.5 Class 300 Flanges | Spectacle Blind Ansi B16.5 150 Flanges |