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| Quantity: | |
|---|---|
BL Flange
SDFL
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Flange Ring Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | G | |||
| 15 | 1/2 | 88.9 | 60.5 | 15.7 | 4 | 11.2 | 35.1 | 1.6 |
| 20 | 3/4 | 98.6 | 69.9 | 15.7 | 4 | 12.7 | 42.9 | 1.6 |
| 25 | 1 | 108 | 79.3 | 15.7 | 4 | 14.2 | 50.8 | 1.6 |
| 32 | 1-1/4 | 117.3 | 88.9 | 15.7 | 4 | 15.7 | 63.5 | 1.6 |
| 40 | 1-1/2 | 127 | 98.6 | 15.7 | 4 | 17.5 | 73.15 | 1.6 |
| 50 | 2 | 152.4 | 120.7 | 19.1 | 4 | 19.1 | 91.9 | 1.6 |
| 65 | 2-1/2 | 177.8 | 139.7 | 19.1 | 4 | 22.4 | 104.6 | 1.6 |
| 80 | 3 | 190.5 | 152.4 | 19.1 | 4 | 23.9 | 127 | 1.6 |
| 90 | 3-1/2 | 215.9 | 177.8 | 19.1 | 8 | 23.9 | 139.7 | 1.6 |
| 100 | 4 | 228.6 | 190.5 | 19.1 | 8 | 23.9 | 157.2 | 1.6 |
| 125 | 5 | 254 | 215.9 | 22.4 | 8 | 23.9 | 185.7 | 1.6 |
| 150 | 6 | 279.4 | 241.3 | 22.4 | 8 | 25.4 | 215.9 | 1.6 |
| 200 | 8 | 342.9 | 298.5 | 22.4 | 8 | 28.4 | 269.7 | 1.6 |
| 250 | 10 | 406.4 | 362 | 25.4 | 12 | 30.2 | 323.9 | 1.6 |
| 300 | 12 | 482.6 | 431.8 | 25.4 | 12 | 31.75 | 381 | 1.6 |
| 350 | 14 | 533.4 | 476.3 | 28.4 | 12 | 35.1 | 412.8 | 1.6 |
| 400 | 16 | 596.9 | 539.8 | 28.4 | 16 | 36.6 | 469.9 | 1.6 |
| 450 | 18 | 635 | 577.9 | 31.8 | 16 | 39.6 | 533.4 | 1.6 |
| 500 | 20 | 698.5 | 635 | 31.8 | 20 | 42.9 | 584.2 | 1.6 |
| 600 | 24 | 812.8 | 749.3 | 35.1 | 20 | 47.8 | 692.2 | 1.6 |
Application Field：
Oil & Gas Industry:Pipeline Maintenance & Isolation, Subsea Pipelines, LNG Terminals, Wellhead Pressure Testing, Tank & Reactor Closure.Chemical & Pharmaceutical:Multi-Product Line Switching, High-Pressure Reactor Safety, Polymerization Reactors
Power & Energy:Boiler & Steam System Shutdown, Nuclear Plant Radiation Containment, Primary Loop.
Water Treatment & Municipal:Water Tank & Network Isolation, Desalination Systems.
Shipbuilding & Offshore:Marine Propulsion System Maintenance, Offshore Platform Safety, Drilling Rigs.
Blind plate flange:
Features: Solid disc structure, no flow holes.
Advantages: Completely enclosed pipeline, convenient for inspection and maintenance, and space-saving.
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Flange Ring Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | G | |||
| 15 | 1/2 | 88.9 | 60.5 | 15.7 | 4 | 11.2 | 35.1 | 1.6 |
| 20 | 3/4 | 98.6 | 69.9 | 15.7 | 4 | 12.7 | 42.9 | 1.6 |
| 25 | 1 | 108 | 79.3 | 15.7 | 4 | 14.2 | 50.8 | 1.6 |
| 32 | 1-1/4 | 117.3 | 88.9 | 15.7 | 4 | 15.7 | 63.5 | 1.6 |
| 40 | 1-1/2 | 127 | 98.6 | 15.7 | 4 | 17.5 | 73.15 | 1.6 |
| 50 | 2 | 152.4 | 120.7 | 19.1 | 4 | 19.1 | 91.9 | 1.6 |
| 65 | 2-1/2 | 177.8 | 139.7 | 19.1 | 4 | 22.4 | 104.6 | 1.6 |
| 80 | 3 | 190.5 | 152.4 | 19.1 | 4 | 23.9 | 127 | 1.6 |
| 90 | 3-1/2 | 215.9 | 177.8 | 19.1 | 8 | 23.9 | 139.7 | 1.6 |
| 100 | 4 | 228.6 | 190.5 | 19.1 | 8 | 23.9 | 157.2 | 1.6 |
| 125 | 5 | 254 | 215.9 | 22.4 | 8 | 23.9 | 185.7 | 1.6 |
| 150 | 6 | 279.4 | 241.3 | 22.4 | 8 | 25.4 | 215.9 | 1.6 |
| 200 | 8 | 342.9 | 298.5 | 22.4 | 8 | 28.4 | 269.7 | 1.6 |
| 250 | 10 | 406.4 | 362 | 25.4 | 12 | 30.2 | 323.9 | 1.6 |
| 300 | 12 | 482.6 | 431.8 | 25.4 | 12 | 31.75 | 381 | 1.6 |
| 350 | 14 | 533.4 | 476.3 | 28.4 | 12 | 35.1 | 412.8 | 1.6 |
| 400 | 16 | 596.9 | 539.8 | 28.4 | 16 | 36.6 | 469.9 | 1.6 |
| 450 | 18 | 635 | 577.9 | 31.8 | 16 | 39.6 | 533.4 | 1.6 |
| 500 | 20 | 698.5 | 635 | 31.8 | 20 | 42.9 | 584.2 | 1.6 |
| 600 | 24 | 812.8 | 749.3 | 35.1 | 20 | 47.8 | 692.2 | 1.6 |
Application Field：
Oil & Gas Industry:Pipeline Maintenance & Isolation, Subsea Pipelines, LNG Terminals, Wellhead Pressure Testing, Tank & Reactor Closure.Chemical & Pharmaceutical:Multi-Product Line Switching, High-Pressure Reactor Safety, Polymerization Reactors
Power & Energy:Boiler & Steam System Shutdown, Nuclear Plant Radiation Containment, Primary Loop.
Water Treatment & Municipal:Water Tank & Network Isolation, Desalination Systems.
Shipbuilding & Offshore:Marine Propulsion System Maintenance, Offshore Platform Safety, Drilling Rigs.
Blind plate flange:
Features: Solid disc structure, no flow holes.
Advantages: Completely enclosed pipeline, convenient for inspection and maintenance, and space-saving.
