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Scum gate valve is used for ash discharge system to connect or cut off grey water mixture and slag water slurry in water systems of thermal power station and water conservancy project.
Working pressure: 1.6-6.4MPa
Temperature: 0-100℃
Characteristics:
1. Adopting flange for connection. Two ends of branch pipe is flange or butt welding;
2. Disc adopts semi seal to mandatory seal, having good characteristics;
3. Sealing pair is made of wear resistant ceramic and alloy, having excellent wear resistance, long service life, low friction force and reliable seal.
4. Having reasonable runner without any dregs;
5. Stem and surface have been tempered and nitrided, having good corrosive resistance.
6. Having rolling bearings.
Standards
Design: GB 12334, GB 3595
Length: GB 12221
Pressure-temperature: GB 9131, JB/T 74, HG 20604
Flange: JG/T 79, GB9113, HG 20593-20635
Testing & inspection: GB 13927, JB/T 9092
Materials
Body Bonnet Holder Disc Stem Base Seal ring Packing Stem nut WCB WCB WCB WCB+alloy 2Cr13 WCB+alloy Flexible graphite Flexible graphite ZCuA11
Dimensions
Nominal Pressure PN | Nominal Diameter DN | Dimensions | |||||||||
L | D | D1 | D2 | D6 | b | f | Z-d | H | D0 | ||
150Lb | 50 | 250 | 160 | 125 | 100 | - | 16 | 3 | 4-18 | 335 | 250 |
80 | 280 | 195 | 160 | 135 | - | 20 | 3 | 8-18 | 510 | 280 | |
100 | 300 | 215 | 180 | 155 | - | 20 | 3 | 8-18 | 685 | 300 | |
150 | 350 | 280 | 240 | 210 | - | 24 | 3 | 8-23 | 790 | 300 | |
200 | 400 | 335 | 295 | 265 | - | 26 | 3 | 12-23 | 885 | 350 | |
250 | 450 | 405 | 355 | 320 | - | 30 | 3 | 12-25 | 1015 | 400 | |
300 | 500 | 460 | 410 | 375 | - | 30 | 3 | 12-25 | 1190 | 450 | |
350 | 550 | 520 | 470 | 435 | - | 34 | 4 | 16-25 | 1350 | 500 | |
400 | 600 | 580 | 525 | 485 | - | 36 | 4 | 16-25 | 1460 | 500 | |
450 | 650 | 640 | 585 | 545 | - | 40 | 4 | 20-30 | 1620 | 550 | |
500 | 700 | 705 | 650 | 608 | - | 44 | 4 | 20-34 | 1800 | 550 | |
200Lb | 50 | 250 | 160 | 125 | 100 | - | 20 | 3 | 4-18 | 335 | 250 |
80 | 280 | 195 | 160 | 135 | - | 22 | 3 | 8-18 | 510 | 280 | |
100 | 300 | 230 | 190 | 160 | - | 24 | 3 | 8-23 | 685 | 300 | |
150 | 350 | 300 | 250 | 218 | - | 30 | 3 | 8-25 | 790 | 300 | |
200 | 400 | 360 | 310 | 278 | - | 34 | 3 | 12-25 | 885 | 350 | |
250 | 450 | 425 | 370 | 332 | - | 36 | 3 | 12-30 | 1015 | 400 | |
300 | 500 | 485 | 430 | 390 | - | 40 | 4 | 16-30 | 1190 | 450 | |
350 | 550 | 550 | 490 | 448 | - | 44 | 4 | 16-34 | 1350 | 500 | |
400 | 600 | 610 | 550 | 505 | - | 48 | 4 | 16-34 | 1460 | 500 | |
450 | 650 | 660 | 600 | 555 | - | 50 | 4 | 20-34 | 1620 | 550 | |
500 | 700 | 730 | 660 | 610 | - | 52 | 4 | 20-41 | 1800 | 550 | |
300Lb | 50 | 250 | 160 | 125 | 100 | 88 | 20 | 3 | 4-18 | 340 | 250 |
80 | 310 | 195 | 160 | 135 | 121 | 22 | 3 | 8-18 | 508 | 300 | |
100 | 350 | 230 | 190 | 160 | 150 | 24 | 3 | 8-23 | 680 | 300 | |
150 | 450 | 300 | 250 | 218 | 204 | 30 | 3 | 8-25 | 800 | 400 | |
200 | 550 | 375 | 320 | 282 | 260 | 38 | 3 | 12-30 | 875 | 500 | |
250 | 650 | 445 | 385 | 345 | 313 | 42 | 3 | 12-34 | 1010 | 500 | |
300 | 750 | 510 | 450 | 408 | 364 | 46 | 4 | 16-34 | 1180 | 550 | |
350 | 850 | 570 | 510 | 465 | 422 | 52 | 4 | 16-34 | 1145 | 600 | |
400 | 950 | 655 | 585 | 535 | 474 | 58 | 4 | 16-41 | 1280 | 600 | |
450 | 1050 | 680 | 610 | 560 | 524 | 60 | 4 | 20-41 | 1415 | 700 | |
500 | 1150 | 755 | 670 | 612 | 576 | 62 | 4 | 20-48 | 1560 | 750 | |
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