Piping Projects India is a leading Spectacle Blind Flange Manufacturer & Supplier. Our collection of Spectacle Flanges is made from high-quality stainless steel and alloys. They come in different sizes, grades, specifications, and thicknesses to meet our clients' requirements. These flanges find extensive use in industries such as waterworks, petrochemicals, refineries, chemical industries, and construction works, among others.
As a prominent Spectacle Blind Flange Supplier in India, Spectacle Blind Flanges are commonly used in unique situations because they can be connected to the pipe without welding. Spectacle blind flanges are used in systems that require frequent separation from other installations. Typically, the flange is installed in the "open" position to allow flow through the pipe. When the Spectacle Blind is turned to the "closed" position, the pipe is blocked, and flow is stopped.
Spectacle Blind Flanges are used in construction to build structures, bridges, and infrastructure because of its load-bearing capabilities and resilience. They are used to manufacture machinery, equipment, and numerous components. Spectacle Blind Flanges are also used extensively in the automobile, aerospace, and energy industries, where their toughness and heat resistance are highly desired. We are also a leading Orifice Flange Manufacturer in India.
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Spectacle Blind Flanges Materials, Grades & Specifications
Piping Projects India is an esteemed Spectacle Blind Flange Supplier in India. We are dedicated to provide with reliable, top-notch Spectacle Blind Flange in India. Here are the specifications for Spectacle Blind Flanges
| Materials | Grade |
| Stainless Steel | ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L |
| Duplex & Super Duplex Steel | ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61 |
| Carbon Steel | ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706, ASTM / ASME A/SA 105 ASTM / ASME A350 |
| Alloy Steel | ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91 |
| Copper Alloy Steel Weld Neck Flanges | ASTM SB 61, C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, SB62, SB151, SB152 UNS No. C 70600 (Cu-Ni 90/10), 10300, 10800, 12000, 12200 |
| Hastelloy | Hastelloy C276, Hastelloy C22 |
| Inconel | Inconel 600, Inconel 675 (UNS No N0o025), Inconel 875, Inconel 601, Inconel 800, |
| Nickel Alloy | ASTM SB564, Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), SB160, SB472, SB162 Nickel 200 (UNS No. N02200), 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) |
Piping Projects India is a trusted Spectacle Blind Flange Manufacturer in India. Our Spectacle Blind Flange are available in various types and diameters for multiple uses and purpose. Some of the types are mention below.
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Spectacle Blind Flange Dimension Chart
| 150 Class Spectacle Blind Flanges | |||||
|---|---|---|---|---|---|
| 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 |
| 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 |
| 300 Class Spectacle Blind Flanges | |||||
| 1/2 | 51 | 16 | 65 | 6.4 | 38 |
| 3/4 | 64 | 21 | 80 | 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 |
| 600 Class 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 | 90 | 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 |
What is ASME B16.5 Spectacle Blind Flanges?
The ASME B16.48 standard includes pressure and temperature ratings, materials, limits, labelling, and inspection of spectacle blind flanges. It also includes dimensions for these flanges. Carbon steel spectacle blind flanges are offered in sizes NPS 1/2 to NPS 24 for use between ASME B16.5 flanges. The spectacle blind flange 300 is available in pressure classes 150, 300, 600, 900, 1500, and 2500. We are a top Spectacle Blind Flange Manufacturer in India.
Application & Uses of Spectacle Blind Flange
As a well-known Spectacle Blind Flange Manufacturer in India, our Spectacle Blind Flanges are a widely use for various application such as:
Spectacle Blind Flange Pressure Ratings
| 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 |
Piping Projects India is a leading Spectacle Blind Flange Manufacturer in India. We proudly supply high-quality Spectacle Blind Flange to major cities in India. We are known in the market as the trusted Spectacle Blind Flange Supplier in India for a long time.
| Top Spectacle Blind Flange Supplier in Indian Cities | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Raigad | Pune | Nashik | Nagpur | Ahmednagar | Mumbai | ||||
| Ahmedabad | Bangalore | Chennai | Vadodara | Ludhiana | Delhi | ||||
Spectacle Blind Flange Manufacturer in India
Spectacle Blind Flange Supplier in India
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