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Pneumatic wafer type hard seal butterfly valve
Model:
Dd673H
Specifications:
DN100-DN600
Applicable temperature:
≤ 300 ℃
Applicable medium:
Gas, air
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- Product Description
- Detailed parameters
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Pneumatic wafer type hard seal butterfly valve adopts precise J-shaped elastic sealing ring and three eccentric multi-level metal hard seal structure, and is widely used in industrial pipelines with medium temperature ≤ 425 ℃, such as metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction, etc., for adjusting flow rate and carrying off fluid.
Pneumatic wafer type butterfly valve
Pneumatic wafer type hard seal butterfly valve characteristics;
1, pneumatic wafer type hard seal butterfly valve adopts three eccentric sealing structure, valve seat and butterfly plate almost no wear, with the view of the more tight sealing function.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance and long service life under low and high temperature conditions.
3. The sealing surface of the disc plate adopts surfacing cobalt-based hard alloy, which is wear-resistant and has long service life.
4. Large size butterfly plate adopts quilted frame structure, high strength, large flow area and small flow resistance.
5, the valve has a two-way sealing function, the installation is not restricted by the flow of the medium, nor is it affected by the space position, can be installed in any direction.
6. The driving device can be installed in multiple stations (rotating 90 ° or 180 °), which is convenient for users to use.
Pneumatic wafer type hard seal butterfly valve adopts three eccentric structure, valve seat and disc sealing surface are made of different hardness and stainless steel, has good corrosion resistance, long service life.
Gas butterfly valve according to the different forms of sealing, mainly divided into hard seal gas butterfly valve and rubber soft seal butterfly valve,
Warm tips:
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Main performance parameters of pneumatic wafer type hard seal butterfly valve
Nominal diameter
（DN)
Nominal pressure 0.25MPa Structure length End connection Overall dimension Lj Lf D Do b Dn N-d D1 d1 H H1 50 43 108 140 88 16 110 4-14 59 49 250 85 65 46 112 160 108 16 130 4-14 76 64 265 95 80 64 114 190 124 18 150 4-18 90 78 280 110 100 64 127 210 144 18 170 4-18 110 96 295 120 125 70 140 240 174 18 200 8-18 135 121 315 135 150 76 140 265 199 20 225 8-18 161 146 340 148 200 89 152 320 254 22 280 8-18 222 202 380 190 250 114 165 375 309 24 335 12-18 278 254 420 218 300 114 178 440 363 24 395 12-22 330 303 480 250 350 127 190 490 413 24 445 12-22 382 351 505 275 400 140 216 540 463 24 495 16-22 432 398 540 300 450 152 222 595 518 24 550 16-22 484 450 580 350 500 152 229 645 568 26 600 20-22 535 501 625 370 600 154 267 755 667 30 705 20-26 636 602 700 430 700 165 292 860 772 26 810 24-26 726 Press 765 480 800 190 318 975 878 26 920 24-30 826 840 550 900 203 330 1075 978 26 1020 24-30 926 User 930 600 1000 216 410 1175 1078 26 1120 28-30 1028 1135 650 1200 254 470 1375 1275 26 1320 32-30 1228 Provisions 1275 750 1400 279 530 1575 1510 26 1520 36-30 1428 1380 850 1600 318 600 1790 1710 26 1730 40-30 1628 Formulation 1485 960 1800 356 670 1990 1918 26 1930 44-30 1828 1610 1060 2000 406 760 2190 2125 26 2130 48-30 2028 1730 1160