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Blind Flanges are solid flanges used to seal the end of pipes, valves, or pressure vessel openings. Unlike other flanges, they do not have a bore, making them ideal for applications where flow needs to be stopped completely or temporarily. They are widely used in piping systems for inspection, maintenance, and pressure testing.
Available in various sizes, pressure ratings, and material grades, Blind Flanges can withstand high pressure and temperature conditions. They are commonly manufactured in Stainless Steel, Carbon Steel, Alloy Steel, Duplex, Super Duplex, and Nickel Alloys, ensuring durability and resistance to corrosion. They can be supplied with raised face (RF), flat face (FF), or ring-type joint (RTJ) surfaces as per international standards.
Our Blind Flanges comply with ASME, ANSI, DIN, EN, BS, and JIS specifications, making them suitable for oil & gas, petrochemical, chemical, power generation, shipbuilding, and water treatment industries. With features like leak-proof sealing, high mechanical strength, and ease of installation, Blind Flanges are a reliable choice for critical piping systems.
| Specification | Details |
|---|---|
| Product | Blind Flange |
| Size Range | 1/2" NB to 72" NB (DN15 to DN1800) – Custom sizes available |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 / PN6 to PN400 |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Standards | ASME B16.5, ASME B16.47 Series A & B, ASTM, ANSI, DIN, EN 1092-1, BS 4504, JIS B2220, ISO |
| Material Grades |
Stainless Steel: 304, 304L, 316, 316L, 321, 347 Carbon Steel: ASTM A105, ASTM A350 LF2 Alloy Steel: ASTM A182 F1, F5, F9, F11, F22, F91 Duplex / Super Duplex: UNS S31803, S32205, S32750, S32760 Nickel Alloys: Inconel, Monel, Hastelloy, Alloy 20 Other Alloys: Copper Nickel, Aluminium, Titanium |
| Manufacturing Process | Forged, Heat Treated, CNC Machined |
| Surface Finish | Black Coated, Anti-Rust Oil, Galvanized, Pickled, Polished |
| Testing & Certification | Hydrostatic Test, Ultrasonic Test (UT), Magnetic Particle Test (MPI), PMI Test, IBR / Third-Party Inspection |
| Applications | Oil & Gas, Petrochemical, Power Generation, Water Supply, Chemical Processing, Shipbuilding, Marine, Construction, Pipeline Testing & Maintenance |
| Special Features | Leak-Proof Sealing, High Pressure & Temperature Resistance, Easy Installation & Removal, Reusable for Testing & Maintenance |
Our Blind Flanges are designed to close the ends of piping systems, isolate sections, and allow easy access for inspection and maintenance. Built with superior strength and precision, they provide reliable sealing solutions for high-pressure and high-temperature applications.
Blind Flanges are primarily used to seal the ends of pipelines, valves, or equipment, providing a secure block-off point for safety and efficiency.
They allow easy access for inspection, cleaning, and modification of piping systems without requiring complete dismantling.
Manufactured using carbon steel, stainless steel, duplex, and alloy grades, these flanges deliver excellent mechanical strength and corrosion resistance.
Our Blind Flanges are manufactured to meet global standards such as ASME B16.5, ASME B16.47, DIN, EN, and JIS, ensuring compatibility and reliability.
Extensively used in oil & gas, petrochemical, power generation, shipbuilding, and water treatment industries for safe piping system isolation.
Blind Flanges provide a tight, leak-proof seal in high-pressure and high-temperature systems, ensuring safety and efficiency in operations.