First, the lining of the flange flange butterfly valve (center line) Brief introduction
Lining fluorine butterfly valve with a spherical sealing surface of the lining of the fluorine plastic package liner plate, together with the base of the silicone rubber liner to adjust the sealing performance of the valve; , Tight sealing performance, long service life; can be used to quickly cut or adjust the flow of use. Suitable for applications where reliable sealing and good adjustment characteristics are required. The valve body adopts the split type, and the seal of the valve shaft is controlled by the rotating base surface between the butterfly plate and the valve seat, so as to achieve the compact product structure, beautiful appearance, reasonable process and reliable performance. To ensure that the valve shaft is not in contact with the fluid medium, replace the valve shaft is very convenient, the valve does not need to be separated from the pipeline to complete. Products are widely used in a variety of different types of industrial pipelines in the liquid and gas (including steam) delivery, especially with severe corrosive media such as sulfuric acid, hydrofluoric acid, phosphorus, acid, LU gas, strong alkali, Such as a strong corrosive medium.
Second, the fluorine flange butterfly valve (center line) the main technical parameters
Nominal diameter DN (mm) | 50 ~ 1200 | 50 ~ 1600 | |
Nominal pressure PN (MPa) | 0.6 | 1.0 | 1.6 |
Seal test (MPa) | 0.66 | 1.1 | 1.76 |
Strength test (MPa) | 0.9 | 1.5 | 2.4 |
proper temperature | Nitrile rubber: -40 ℃ ~ 90 ℃; fluorine rubber: -20 ℃ ~ 200 ℃ | ||
Applicable media | Water, air, natural gas, oil and weakly corrosive fluids | ||
Leakage rate | Meet the GB / T13927-92 standard | ||
Drive mode | Worm gear, electric, pneumatic, hydraulic |
Third, the fluorine flange butterfly valve (center line) the main parts and materials
Part Name | material |
Body | WCB, QT450-10, HT200, HT250 |
Butterfly board | WCB, QT450-10, HT200, HT250 |
Valve shaft | 2Cr13 |
Sealing ring | Nitrile oil resistant rubber |
filler | Flexible graphite |
Fourth, the fluorine flange butterfly valve (center line) the implementation of standards
Manufacturing standards | GB / T 122387-89 |
Flange standard | GB9113-2000, GB17241.6-1998 |
Structural length standard | GB12221-89 |
Inspection standards | GB / T 13927-92 |
Fifth, Lined flange flange butterfly valve (center line) main shape connection unit: mm
DN | L | H | H1 | A | B | ФD | ||
0.6MPa | 1.0MPa | 1.6MPa | ||||||
50 | 43 | 77 | 309 | 180 | 200 | 88 | 99 | 99 |
65 | 46 | 85 | 320 | 180 | 200 | 108 | 118 | 118 |
80 | 46 | 95 | 340 | 180 | 200 | 124 | 132 | 132 |
100 | 52 | 105 | 360 | 180 | 200 | 144 | 156 | 156 |
125 | 56 | 129 | 405 | 180 | 200 | 174 | 184 | 184 |
150 | 56 | 132 | 450 | 270 | 280 | 199 | 211 | 211 |
200 | 60 | 165 | 607 | 270 | 280 | 254 | 266 | 266 |
250 | 68 | 197 | 659 | 270 | 280 | 309 | 319 | 319 |
300 | 78 | 234 | 742 | 380 | 420 | 363 | 370 | 370 |
350 | 78 | 283 | 792 | 380 | 420 | 413 | 429 | 429 |
400 | 102 | 325 | 887 | 450 | 470 | 463 | 480 | 480 |
450 | 114 | 369 | 935 | 480 | 490 | 518 | 530 | 548 |
500 | 127 | 404 | 985 | 480 | 490 | 568 | 582 | 609 |
600 | 154 | 470 | 1243 | 480 | 490 | 667 | 682 | 720 |
700 | 165 | 503 | 1346 | 640 | 660 | 772 | 794 | 794 |
800 | 190 | 571 | 1466 | 640 | 660 | 878 | 901 | 901 |
900 | 203 | 621 | 1565 | 750 | 860 | 978 | 1001 | 1001 |
1000 | 216 | 702 | 1781 | 850 | 900 | 1078 | 1112 | 1112 |
1200 | 254 | 818 | 1965 | 850 | 900 | 1295 | 1328 | 1328 |