Shrikant Steel Centre is a trusted Spectacle Blind Flanges Supplier in Dubai. Our Spectacle Blind Flanges (Figure 8 Blinds) are extremely durable, leak-proof, and precision-engineered. Our products can also be customized and machined to match the specific requirements of our customers. We provide high-quality spectacle blind flanges that meet national and international raw material quality criteria.
Shrikant Steel Centre is a leading Spectacle Blind Flanges Supplier in Dubai. To meet the diverse requirements of our customers, we offer our flanges in a wide range of pressure ratings, dimensions, materials, and wall schedules.
A Spectacle Blind Flange consists of a solid plate (blind) connected to a ring (spacer) by a small web or tie bar, resembling a pair of eyeglasses or a figure 8. These flanges are installed in piping systems where isolation or shutoff is frequently needed for maintenance, safety, or inspection purposes without needing to modify existing line connections.
| Flange Category | Specification |
|---|---|
| Specification | ASME B16.48, ASTM A182, A105, A350, A694 / ASME SA182, SA105 |
| Types | Spectacle Blind (Figure 8), Paddle Blind, Paddle Spacer |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 / PN6, PN10, PN16, PN25, PN40, PN64 |
| Size | ½ NB to 48 NB |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Male & Female |
| Standards | ASME B16.48, ANSI/ASME B16.5, ASME B16.47, EN 1092-1, DIN, BS |
| Material Grades | Stainless Steel (304, 304L, 316, 316L, 317L, 321, 347), Carbon Steel (A105, LF2), Alloy Steel (F11, F22, F91), Duplex & Super Duplex |
The chemical composition of Spectacle Blind flanges plays a critical role in providing structural integrity, high-temperature resistance, and corrosion stability under positive line shutoff conditions. Below is the typical chemical composition for widely specified stainless steel grades.
| Stainless Steel Spectacle Blind Flanges Chemical Composition (%) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo |
| F304 / F304L | 0.030 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 18.00-20.00 | 8.00-13.00 | - |
| F316 / F316L | 0.030 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 16.00-18.00 | 10.00-15.00 | 2.00-3.00 |
| F321 | 0.08 max | 2.00 max | 0.045 max | 0.030 max | 1.00 max | 17.00-19.00 | 9.00-12.00 | - |
Spectacle Blind flanges are selected for their high yield strength, impact resistance, and ability to hold high line differential pressures when switched to the blind position. Their robust construction ensures long-term safety across critical oil, gas, chemical, and refining operations.
| Spectacle Blind Flanges Mechanical Properties | ||||
|---|---|---|---|---|
| Grade | UNS | Tensile Strength (ksi / MPa), min | Yield Strength (ksi / MPa), min | Elongation (%), min |
| F304 | S30400 | 75 / 515 | 30 / 205 | 30 |
| F316 | S31600 | 75 / 515 | 30 / 205 | 30 |
| ASTM A105 (Carbon Steel) | K03504 | 70 / 485 | 36 / 250 | 22 |
Spectacle Blind flanges are available in accordance with ASME B16.48 and are designed for compatibility with applicable ASME B16.5 and ASME B16.47 flange specifications. The table below outlines nominal pipe sizes and their corresponding outside diameters for reference.
| Spectacle Blind Flanges Size Chart | ||
|---|---|---|
| NPS (Nominal Pipe Size) | Outside Diameter (inches) | Outside Diameter (mm) |
| 1/2 | 0.840 | 21.34 |
| 3/4 | 1.050 | 26.67 |
| 1 | 1.315 | 33.40 |
| 1 1/4 | 1.660 | 42.16 |
| 1 1/2 | 1.900 | 48.26 |
| 2 | 2.375 | 60.33 |
| 2 1/2 | 2.875 | 73.03 |
| 3 | 3.500 | 88.90 |
| 3 1/2 | 4.000 | 101.60 |
| 4 | 4.500 | 114.30 |
| 5 | 5.563 | 141.30 |
| 6 | 6.625 | 168.28 |
| 8 | 8.625 | 219.08 |
| 10 | 10.750 | 273.05 |
| 12 | 12.750 | 323.85 |
We are a leading High Quality Spectacle Blind Flanges Supplier in Dubai
Our several locations in Dubai make it easier for our customers to purchase from Shrikant Steel Centre regardless of where they are. When you require high-quality Spectacle Blind Flanges and other items at a fair price, contact us first to ensure that your purchases are delivered promptly and on time.
| City We Supply | |||||
|---|---|---|---|---|---|
| Bengaluru | Mumbai | Chennai | Hyderabad | Kolkata | Pune |
| New Delhi | Ahmedabad | Jaipur | Surat | Salem | Gandhinagar |
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar | Thiruvananthapuram | Rajahmundry |
| Bhubaneswar | Vijaywada | Firozabad | Pithampur | Rajkot | Bharuch |
| Panna | Raipur | Cochin | Ludhiana | Panipat | Durgapur |
| Peenya | Hosdurg | Channapatna | Kharagpur | Nashik | Bareilly |
Shrikant Steel Centre is a well-known Spectacle Blind Flanges Supplier. Every year, significant quantities of spectacle blind flanges are transported from Dubai. We ship to a variety of countries on a regular basis for our new customers. We can communicate and fulfill our clients demands and expectations thanks to our prompt delivery of Spectacle Blind Flanges.
| Countries We Supply | ||||
|---|---|---|---|---|
| Saudi Arabia | Oman | Kuwait | Netherlands | Iran |
| Bahrain | Qatar | UAE | Africa | China |
| Nigeria | Mexico | Canada | Venezuela | United Kingdom |
| United States | South Africa | Malaysia | Bangladesh | Turkey |
| Singapore | Sri Lanka | Australia | Brazil | Germany |
| France | Italy | South Korea | Poland | Belgium |
