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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 |