Blind Flange ANSI B16.5 Class #150
Dimensions: 1/2″ – 24″
The BLIND FLANGE ANSI B16.5 CLASS #150 is a premium industrial component designed for sealing the end of piping systems, pressure vessels, or equipment nozzles. Manufactured to meet stringent ANSI B16.5 standards, this flange ensures reliable performance in high-pressure environments up to 275 PSI at 100°F. Its robust construction provides exceptional leak-proof sealing, making it ideal for applications in oil and gas, chemical processing, water treatment, and power generation industries.Key features include:Material Options: Available in carbon steel, stainless steel, alloy steel, and other materials to suit various corrosive and temperature conditions.Precision Machining: Each flange is precision-machined to ensure perfect alignment and secure bolting with matching flanges.Pressure Rating: Rated for Class 150, suitable for moderate pressure applications.Easy Installation: Designed for straightforward installation and removal, minimizing downtime during maintenance.This blind flange is essential for system testing, isolation, or future expansion points in pipelines. It is widely used in refineries, petrochemical plants, and industrial facilities where safety and durability are paramount. Ensure compatibility with your system’s specifications for optimal performance.
Materials
| No. | DETAILS | MATERIALS |
|---|---|---|
| 1 | Flange | steel ASTM A105N |
| other steels - on request | ||
| stainless steels - upon request |
Features
| SPECIFICATION | |
|---|---|
| Standard | ANSI B16.5 |
| Pressure | #150 (PN 20) |
| Sealing surface | flat face (FF) |
| Guidance surface options | with flange (RF) or profile channel (RTJ) |
| DN | flange dimensions | open | ||||||
|---|---|---|---|---|---|---|---|---|
| Dz | Do | do | g | D1 | f | kg | n | |
| 1/2" | 88.9 | 60.5 | 15.7 | 11.2 | 35.1 | 1.6 | 0.42 | 4 |
| 3/4" | 98.6 | 69.9 | 15.7 | 12.7 | 42.9 | 1.6 | 0.61 | 4 |
| 1" | 108.0 | 79.2 | 15.7 | 14.2 | 50.8 | 1.6 | 0.86 | 4 |
| 1 1/4" | 117.3 | 88.9 | 15.7 | 15.7 | 63.5 | 1.6 | 1.17 | 4 |
| 1 1/2" | 127.0 | 98.6 | 15.7 | 17.5 | 73.2 | 1.6 | 1.53 | 4 |
| 2" | 152.4 | 120.7 | 19.1 | 19.1 | 91.9 | 1.6 | 2.42 | 4 |
| 2 1/2" | 177.8 | 139.7 | 19.1 | 22.4 | 104.6 | 1.6 | 3.94 | 4 |
| 3" | 190.5 | 152.4 | 19.1 | 23.9 | 127.0 | 1.6 | 4.93 | 4 |
| 3 1/2" | 215.9 | 177.8 | 19.1 | 23.9 | 139.7 | 1.6 | 6.17 | 8 |
| 4" | 228.6 | 190.5 | 19.1 | 23.9 | 157.2 | 1.6 | 7.00 | 8 |
| 5" | 254.0 | 215.9 | 22.4 | 23.9 | 185.7 | 1.6 | 8.63 | 8 |
| 6" | 279.4 | 241.3 | 22.4 | 25.4 | 215.9 | 1.6 | 11.3 | 8 |
| 8" | 342.9 | 298.5 | 22.4 | 28.4 | 269.7 | 1.6 | 19.6 | 8 |
| 10" | 406.4 | 362.0 | 25.4 | 30.2 | 323.9 | 1.6 | 28.8 | 12 |
| 12" | 482.6 | 431.8 | 25.4 | 31.8 | 381.0 | 1.6 | 43.2 | 12 |
| 14" | 533.4 | 476.3 | 28.4 | 35.1 | 412.8 | 1.6 | 58.1 | 12 |
| 16" | 596.9 | 539.8 | 28.4 | 36.6 | 469.9 | 1.6 | 76.0 | 16 |
| 18" | 635.0 | 577.9 | 31.8 | 39.6 | 533.4 | 1.6 | 93.7 | 16 |
| 20" | 698.5 | 635.0 | 31.8 | 42.9 | 584.2 | 1.6 | 122 | 20 |
| 24" | 812.8 | 749.3 | 35.1 | 47.8 | 692.2 | 1.6 | 185 | 20 |
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