Q41f cast steel flange ball valve is a valve whose opening and closing piece (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. Among them, there is a strong shear force between the V-shaped ball core of hard sealed V-shaped ball valve and the metal valve seat of surfacing cemented carbide. It is especially suitable for media containing fiber and micro solid particles. The multi-way ball valve can not only flexibly control the confluence, diversion and flow direction switching of media on the pipeline, but also close any channel to connect the other two channels. This type of valve shall be installed horizontally in the pipeline. Ball valves are divided into pneumatic ball valves, electric ball valves and manual ball valves according to the driving mode
.1. Indoor devices or outdoor applications with protective methods;
2. Outdoor devices with wind, sand, rain, sunlight and other erosion;
3. Environment with flammable, explosive gas or dust;
4. Humid and dry tropical environment;
5. The temperature of pipeline medium is above 450 ℃;
6. The ambient temperature is below - 20 ℃;
7. Easy to be flooded or immersed in water;
8. Environment with radioactive substances (nuclear power plant and radioactive substance test device);
9. Environment on ships or docks (with salt fog, mold and humidity);
10. Occasions with severe vibration; Occasions prone to fire;
Inch | DN | L | D | D. | Inch | DN | L | D | D, | Inch | DN | L | D | D. |
1/2" | 15 | 108 | 89 | 60.5 | 1/2" | 15 | 140 | 95 | 66.5 | 1/2" | 15 | 165 | 95 | 66.5 |
3/4" | 20 | 117 | 98 | 70 | 3/4" | 20 | 152 | 117 | 82.5 | 3/4" | 20 | 190 | 118 | 82.5 |
1" | 25 | 127 | 108 | 79.5 | 1" | 25 | 165 | 124 | 89 | 1" | 25 | 216 | 124 | 89 |
1 1/4" | 32 | 140 | 117 | 89 | 1 1/4" | 32 | 178 | 133 | 98.5 | 1 1/2" | 40 | 241 | 156 | 114.3 |
1 1/2" | 40 | 165 | 127 | 98.5 | 1 1/2" | 40 | 190 | 156 | 114.3 | 2" | 50 | 292 | 165 | 127 |
2" | 50 | 178 | 152 | 120.7 | 2" | 50 | 216 | 165 | 127 | 3" | 80 | 356 | 210 | 168.2 |
2 1/2" | 65 | 190 | 177.8 | 139.7 | 2 1/2" | 65 | 241 | 190.5 | 149.4 | 4" | 100 | 432 | 273 | 216 |
3" | 80 | 203 | 190.5 | 152.4 | 3" | 80 | 283 | 210 | 168.5 | 6" | 150 | 559 | 356 | 292 |
4" | 100 | 229 | 229 | 190.5 | 4" | 100 | 305 | 254 | 200.2 | 8" | 200 | 660 | 419 | 349 |
5" | 125 | 356 | 254 | 216 | 5" | 125 | 381 | 279 | 235 | 10" | 250 | 787 | 508 | 432 |
6" | 150 | 394 | 279 | 241.3 | 6" | 150 | 403 | 318 | 270 | |||||
8" | 200 | 457 | 343 | 298.5 | 8" | 200 | 502 | 381 | 330 | |||||
10" | 250 | 533 | 406 | 362 | 10" | 250 | 568 | 445 | 387.5 |