| 公称直径 DN |
A | B | D | K | L | n | Th | C | 法兰 | 法兰颈 | H | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | S | H1 | R | N | ||||||||||
| 10 | 17.2 | 14 | 90 | 60 | 14 | 4 | M12 | 16 | 28 | 28 | 1.8 | 6 | 4 | 35 | |
| 15 | 21.3 | 18 | 95 | 65 | 14 | 4 | M12 | 16 | 32 | 32 | 2.0 | 6 | 4 | 38 | |
| 20 | 26.9 | 25 | 105 | 75 | 14 | 4 | M12 | 18 | 40 | 40 | 2.3 | 6 | 4 | 40 | |
| 25 | 33.7 | 32 | 115 | 85 | 14 | 4 | M12 | 18 | 46 | 46 | 2.6 | 6 | 4 | 40 | |
| 32 | 42.4 | 38 | 140 | 100 | 18 | 4 | M16 | 18 | 56 | 56 | 2.6 | 6 | 6 | 42 | |
| 40 | 48.3 | 45 | 150 | 110 | 18 | 4 | M16 | 18 | 64 | 64 | 2.6 | 7 | 6 | 45 | |
| 50 | 60.3 | 57 | 165 | 125 | 18 | 4 | M16 | 18 | 74 | 74 | 2.9 | 8 | 5 | 45 | |
| 65 | 76.1 | 65 | 185 | 145 | 18 | 8 | M16 | 18 | 92 | 92 | 2.9 | 10 | 6 | 45 | |
| 80 | 88.9 | 89 | 200 | 160 | 18 | 8 | M16 | 20 | 105 | 105 | 3.2 | 10 | 6 | 50 | |
| 100 | 114.3 | 108 | 220 | 180 | 18 | 8 | M16 | 20 | 131 | 131 | 3.6 | 12 | 8 | 52 | |
| 125 | 139.7 | 133 | 250 | 210 | 18 | 8 | M16 | 22 | 156 | 156 | 4.0 | 12 | 8 | 55 | |
| 150 | 168.3 | 159 | 285 | 240 | 22 | 8 | M20 | 22 | 184 | 184 | 4.5 | 12 | 10 | 55 | |
| 200 | 219.1 | 219 | 340 | 295 | 22 | 12 | M20 | 24 | 235 | 235 | 6.3 | 16 | 10 | 62 | |
| 250 | 273 | 273 | 405 | 355 | 26 | 12 | M24 | 26 | 292 | 292 | 6.3 | 16 | 12 | 70 | |
| 300 | 323.9 | 325 | 460 | 410 | 26 | 12 | M24 | 28 | 344 | 344 | 7.1 | 16 | 12 | 78 | |
| 350 | 355.6 | 377 | 520 | 470 | 26 | 16 | M24 | 30 | 390 | 410 | 8.0 | 16 | 12 | 82 | |
| 400 | 406.4 | 426 | 580 | 525 | 30 | 16 | M27 | 32 | 445 | 464 | 8.0 | 16 | 12 | 85 | |
| 450 | 457 | 480 | 640 | 585 | 30 | 20 | M27 | 40 | 490 | 512 | 8.0 | 16 | 12 | 92 | |
Upgrade your piping systems with our high-quality Butt Welding Neck Flange, designed for durability and precision. Manufactured using premium-grade stainless steel, this flange is engineered to meet international standards such as ASME B16.5 and DIN 2633, ensuring secure and leak-free connections in high-pressure environments.
Our Butt Welding Neck Flanges are ideal for industrial applications in oil & gas, petrochemical, power plants, and shipbuilding sectors. With a long tapered hub for stress distribution, these flanges are perfect for severe service conditions where strength and resistance to bending are critical.
Available in different sizes and pressure ratings, every flange undergoes rigorous quality testing to guarantee performance and safety.
Optimize your supply chain with reliable Butt Welding Neck Flanges from Likemetals, your trusted flange supplier and industrial pipe fittings manufacturer.
