Blind Flange
- Complete Blocking: Holeless design capable of completely blocking pipes
- Easy Installation: Same connection method as standard flanges with simple installation
- Reliable Sealing: Works with sealing gaskets for good sealing effect
- Multiple Materials: Multiple materials available to adapt to different operating conditions
- Pressure Rating Matching: Matches pipeline system pressure rating
- Wide Application: Suitable for various pipe blocking and isolation applications
Blind Flange (also known as Flange Cover) is a flange with no central hole used to close pipe ends or isolate pipe sections. The product is widely used in pipe system plugging, isolation, testing and other applications, and can also be used for reserved openings for possible future pipe expansion. Blind flanges are manufactured to the same standards as corresponding flanges with identical connection dimensions and pressure ratings to ensure compatibility with pipeline systems. Blind flanges are typically manufactured using forging or casting processes with materials including carbon steel, stainless steel, alloy steel, etc., with appropriate materials selected according to different operating conditions. Blind flanges have a simple structure, convenient installation, and reliable sealing, making them an indispensable important component in pipeline systems.
Technical Standards
| Item | Technical Standard |
|---|---|
| Material | Carbon Steel, Stainless Steel, Alloy Steel |
| Pressure Rating | Class150-Class2500 |
| Size Range | 1/2"-60" (DN15-DN1500) |
| Temperature Range | -29℃ to +538℃ |
| Connection Type | Flanged Connection |
| Facing Type | Raised Face (RF), Male/Female (M/F), Tongue/Groove (T/G) |
| Manufacturing Standard | ASME B16.5, ASME B16.47, GB/T 9113 |
| Inspection Standard | ASME B16.47, GB/T 9124 |
Basic Models
| Model | Type | Features |
|---|---|---|
| BF-150 | 150LB Blind Flange | Low pressure application, cost-effective |
| BF-300 | 300LB Blind Flange | Medium pressure application, stable performance |
| BF-600 | 600LB Blind Flange | High pressure application, high strength |
| BF-900 | 900LB Blind Flange | Ultra-high pressure application, safe and reliable |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Flange Body | A105, A182 F304, A182 F316 |
| 2 | Sealing Face | Same as flange body or overlay alloy |
| 3 | Bolt Holes | Machined as per standard requirements |
| 4 | Surface Treatment | Anti-corrosion coating, sand blasting treatment |
| 5 | Identification Marking | Laser marking or cast lettering |
No drawing available.
