| Flange Size | Flange Diameter | PCD | No. of Bolt Holes | Diameter of Bolts | Diameter of Holes | Diameter of Raised Face | Height of Raised Face |
|---|---|---|---|---|---|---|---|
| 1/2” NB | 95mm | 65mm | 4 | M12 | 14mm | 45mm | 2mm |
| 3/4” NB | 105mm | 75mm | 4 | M12 | 14mm | 58mm | 2mm |
| 1” NB | 115mm | 85mm | 4 | M12 | 14mm | 68mm | 2mm |
| 1 1/4” NB | 140mm | 100mm | 4 | M16 | 18mm | 78mm | 2mm |
| 1 1/2” NB | 150mm | 110mm | 4 | M16 | 18mm | 88mm | 3mm |
| 2” NB | 165mm | 125mm | 4 | M16 | 18mm | 102mm | 3mm |
| 2 1/2” NB | 185mm | 145mm | 4 | M16 | 18mm | 122mm | 3mm |
| 3” NB | 200mm | 160mm | 8 | M16 | 18mm | 138mm | 3mm |
| 4” NB | 220mm | 180mm | 8 | M16 | 18mm | 158mm | 3mm |
| 5” NB | 250mm | 210mm | 8 | M16 | 18mm | 188mm | 3mm |
| 6” NB | 285mm | 240mm | 8 | M20 | 22mm | 212mm | 3mm |
| 8” NB | 340mm | 295mm | 8 | M20 | 22mm | 268mm | 3mm |
| 10” NB | 395mm | 350mm | 12 | M20 | 22mm | 320mm | 3mm |
| 12” NB | 445mm | 400mm | 12 | M20 | 22mm | 378mm | 3mm |
Understanding PN16 Pipe Flanges and Their Applications
This blog post provides a detailed flange chart with measurements for outside diameter, wall thickness, and internal diameter, enabling engineers, contractors, and DIY enthusiasts to confidently select the right pipes for their projects. Stay informed and make educated decisions with this invaluable resource on pipe sizing and specifications. A PN16 pipe flange refers to a flange designed to be used with pipes and fittings that have a pressure rating of PN16. The term "PN16" stands for "Pressure Nominal 16" and is a metric pressure rating commonly used in Europe and other parts of the world.
The PN16 rating indicated that the flange is designed to withstand a maximum pressure of 16 bar (or approximatedly 232 psi). Flanges with this rating are typically used in applications where moderate to high pressure conditions are expected, such as in industrial pipelines, oil and gas systems, water treatment plants, and process industries.
PN16 flanges come in various sizes, materials, and designs, including slip-on flanges, weld neck flanges, blind flanges, threaded flanges and socket weld flanges. These flanges are used to connect pipes, valves, and other equipment together, providing a secure and leak-proof joint.
Having a clear understanding of PN16 pipe flanges is essential for engineers, contractors, and DIY enthusiasts who work with pipes and fittings in various projects.
The PN16 rating indicated that the flange is designed to withstand a maximum pressure of 16 bar (or approximatedly 232 psi). Flanges with this rating are typically used in applications where moderate to high pressure conditions are expected, such as in industrial pipelines, oil and gas systems, water treatment plants, and process industries.
PN16 flanges come in various sizes, materials, and designs, including slip-on flanges, weld neck flanges, blind flanges, threaded flanges and socket weld flanges. These flanges are used to connect pipes, valves, and other equipment together, providing a secure and leak-proof joint.
Having a clear understanding of PN16 pipe flanges is essential for engineers, contractors, and DIY enthusiasts who work with pipes and fittings in various projects.
