Size: DN100~DN450
Pressure: 1.6 MPa ~ 4.0 MPa
Connection forms: GB/T 1724.6-1988
Inspection and test: GB/T13927
Design and manufacturing: GB/T 12237
Pressure temperature level: GB/T12224
The structural length: GB/T12221
Drive mode: Manual, worm gear, pneumatic, electric
A betal seat vall valve is a robust quarter-turn valve designed for high temperature, high pressure, and abrasive services. With metal-to-metal sealing, it provides excellent wear resistance, reliable shut-off, and long service life, making it ideal for oil & gas, power, petrochemical, and slurry applications.
| Pressure Rating | DN | L | D | D1 | D2 | b | f | n-Φd |
|---|---|---|---|---|---|---|---|---|
| PN16 | 100 | 305 | 220 | 180 | 158 | 20 | 2 | 8-18 |
| 125 | 356 | 250 | 210 | 188 | 22 | 2 | 8-18 | |
| 150 | 394 | 285 | 240 | 212 | 22 | 2 | 8-22 | |
| 200 | 457 | 340 | 295 | 268 | 24 | 2 | 12-22 | |
| 250 | 533 | 405 | 355 | 320 | 26 | 2 | 12-26 | |
| 300 | 610 | 460 | 410 | 378 | 28 | 2 | 12-26 | |
| 350 | 686 | 520 | 470 | 428 | 30 | 2 | 16-26 | |
| 400 | 762 | 580 | 525 | 490 | 32 | 2 | 16-30 | |
| 450 | 864 | 640 | 585 | 550 | 40 | 2 | 20-30 | |
| PN25 | 100 | 305 | 235 | 190 | 158 | 24 | 2 | 8-22 |
| 125 | 381 | 270 | 220 | 188 | 26 | 2 | 8-26 | |
| 150 | 403 | 300 | 250 | 218 | 28 | 2 | 8-26 | |
| 200 | 502 | 360 | 310 | 278 | 30 | 2 | 12-26 | |
| 250 | 568 | 425 | 370 | 335 | 32 | 2 | 12-30 | |
| 300 | 648 | 485 | 430 | 395 | 34 | 2 | 16-30 | |
| 350 | 762 | 555 | 490 | 450 | 38 | 2 | 16-33 | |
| 400 | 838 | 620 | 550 | 505 | 40 | 2 | 16-36 | |
| 450 | 914 | 670 | 600 | 555 | 46 | 2 | 20-36 | |
| PN40 | 100 | 305 | 235 | 190 | 162 | 24 | 2 | 8-22 |
| 125 | 381 | 270 | 220 | 188 | 26 | 2 | 8-26 | |
| 150 | 403 | 300 | 250 | 218 | 28 | 2 | 8-26 | |
| 200 | 502 | 375 | 320 | 285 | 34 | 2 | 12-30 | |
| 250 | 568 | 450 | 385 | 345 | 38 | 2 | 12-33 | |
| 300 | 648 | 515 | 450 | 410 | 42 | 2 | 16-33 | |
| 350 | 762 | 580 | 510 | 465 | 46 | 2 | 16-36 | |
| 400 | 838 | 660 | 585 | 535 | 50 | 2 | 16-39 | |
| 450 | 914 | 685 | 610 | 560 | 57 | 2 | 20-39 |
| Pressure Class | NPS | DN | L | D | D1 | D2 | b | f | n-Φd |
|---|---|---|---|---|---|---|---|---|---|
| Class 150 | 4″ | 100 | 305 | 230 | 190.5 | 157.2 | 24 | 2 | 8-19 |
| 5″ | 125 | 356 | 255 | 215.9 | 185.7 | 24 | 2 | 8-22 | |
| 6″ | 150 | 394 | 280 | 241.3 | 215.9 | 26 | 2 | 8-22 | |
| 8″ | 200 | 457 | 345 | 298.5 | 269.9 | 29 | 2 | 8-22 | |
| 10″ | 250 | 533 | 405 | 362 | 323.8 | 31 | 2 | 12-25 | |
| 12″ | 300 | 610 | 485 | 431.8 | 381 | 32 | 2 | 12-25 | |
| 14″ | 350 | 686 | 535 | 476.3 | 412.8 | 35.5 | 2 | 12-29 | |
| 16″ | 400 | 762 | 595 | 539.8 | 469.9 | 37 | 2 | 16-29 | |
| 18″ | 450 | 864 | 635 | 577.9 | 533.4 | 40 | 2 | 16-30 | |
| Class 300 | 4″ | 100 | 305 | 255 | 200 | 157.2 | 32 | 2 | 8-22 |
| 5″ | 125 | 356 | 280 | 235 | 185.7 | 35 | 2 | 8-22 | |
| 6″ | 150 | 394 | 320 | 269.9 | 215.9 | 37 | 2 | 12-22 | |
| 8″ | 200 | 457 | 380 | 330.2 | 269.9 | 42 | 2 | 12-25 | |
| 10″ | 250 | 533 | 445 | 387.4 | 323.8 | 48 | 2 | 16-29 | |
| 12″ | 300 | 610 | 520 | 450.8 | 381 | 51.5 | 2 | 16-32 | |
| 14″ | 350 | 686 | 585 | 514.4 | 412.8 | 54.5 | 2 | 20-32 | |
| 16″ | 400 | 762 | 650 | 571.5 | 469.9 | 57.5 | 2 | 20-35 | |
| 18″ | 450 | 864 | 710 | 628.6 | 533.4 | 61 | 2 | 24-35 | |
| Class 600 | 4″ | 100 | 432 | 275 | 215.9 | 157.2 | 45.1 | 7 | 8-26 |
| 5″ | 125 | 508 | 330 | 266.7 | 185.7 | 51.5 | 7 | 8-30 | |
| 6″ | 150 | 559 | 355 | 292.1 | 215.9 | 54.7 | 7 | 12-30 | |
| 8″ | 200 | 660 | 420 | 349.2 | 269.9 | 62.6 | 7 | 12-33 | |
| 10″ | 250 | 787 | 510 | 431.8 | 323.8 | 70.5 | 7 | 16-36 | |
| 12″ | 300 | 838 | 560 | 489 | 381 | 73.7 | 7 | 20-36 | |
| 14″ | 350 | 889 | 605 | 527 | 412.8 | 76.9 | 7 | 20-39 | |
| 16″ | 400 | 991 | 685 | 603.2 | 469.9 | 83.2 | 7 | 20-42 | |
| 18″ | 450 | 1092 | 745 | 654 | 533.4 | 89.6 | 7 | 20-45 |
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