Su Cheng Valve Co. production Q641F series pneumatic O-Ball is a rotary type valve angle of 90 °, the sealing performance, flow coefficient, flow resistance coefficient is small, simple structure, long life, easy maintenance. The actuator is equipped with the introduction of foreign advanced technology to produce Bray series cylinder actuator, ball points single and double acting models. Products are widely used in system control chemical, petroleum, textile, electricity, food and pharmaceutical, refrigeration, paper industry. Pneumatic valve in the pipeline is mainly used for cutting speed, distribution and change the direction of flow of the medium. Pneumatic valve is a new type of valve is widely used in recent years, it has the following advantages: 1. Fluid resistance, its drag coefficient with the same pipe lengths are equal. 2. Simple structure, small size and light weight. 3. Compact and reliable valve sealing surface material widely used plastic, sealing, has also been widely used in the vacuum system. 4. Easy to operate, opening and closing rapidly, from fully open to fully closed as long as the rotation of 90 °, to facilitate remote control. 5. Easy maintenance, simple pneumatic valve structure, seals are generally activities, the removal replacement is more convenient. 6. When fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media, will not cause erosion of the valve sealing surface. 7. Wide range of applications, from small diameter to a few millimeters to a few meters from high vacuum to high pressure can be applied. 8. Because pneumatic valve power source used is a gas, typically 0.2-0.8MPa pressure, relatively safe. Pneumatic valve leak if so, the relative hydraulic, electric, the gas can be discharged directly, no pollution to the environment, but also has high security. 9. relative to the manual valve and turbine rotation, the pneumatic valve can configure large diameter, (manual and turbo rotating valve DN300 caliber generally in the following, pneumatic valve can now reach DN1200 caliber.) Pneumatic valve has been widely used in petroleum, chemical departments power generation, paper, nuclear, aviation, rockets, as well as people's daily life. Performance parameters: Nominal diameter DN (mm) DN15 ~ DN400 Nominal 1.6,4.0,6.4MPa, ANSI150,300 (Lb), JIS10,20K For medium water, oil, nitric acid, acetic acid class, viscous fluids, slurries, strong oxidizing media and other media temperature -40 ~ + 180 ℃ -40 ~ + 350 ℃ leakage conform level 0 ANSIB16.104 5 standard ball valve angle of 90 ° material system qualitative A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M seat material PTFE (room temperature), specially PPL (high temperature) Explosion-level group dⅡBT4 (d2c4) (available to ordinary type, explosion-proof two kinds of specifications) solenoid valve power 220VAC, 24VDC supply pressure MPa 0.4 ~ 0.7MPa inherent adjustable ratio R 100: 1 flow characteristics Kv values: Kv nominal diameter (DN) under different values ??of the opening angle of 10 ° 20 ° 30 ° 40 ° 50 ° 60 ° 70 ° 80 ° 90 ° 50 2,491,732,609,715,121,580 611,224,483,155,250 3,895,501,009,183,471,133 2,483,986,208,901,502,040 80 1,603,005,609,001,400 2000 2,003,672,143,286,737 1,002,161,125,063,580,250 57,113,226,453,848 1,582,225,339,555,650,300 8,116,332,565,112,202,278 3661 56958100350110 221 44388517503541 5,311,796,710,950,400,150 30,360,511,132,424 4850 72,751,091,015,300 main dimensions: nominal diameter DN (mm) Dimensions (mm) Actuator Model LD D1 D2 bf Z-Φd 15 108 95 65 45 14 2 4-14 GT52 / GT63K 20 117 105 75 55 14 4-14 GT63 / GT63K 25 127 115 85 65 14 4-14 GT63 / GT83K 32 140 135 100 78 16 4-18 GT83 / GT83K 40 165 145 110 85 16 3 4-18 GT83 / GT110K 50 178 160 125 100 16 4-18 GT83 / GT110K 65 190 180 145 120 18 4-18 GT110 / GT127K 80 203 195 160 135 20 8-18 GT127 / GT127K 100 305 215 180 155 20 8-18 GT127 / GT160K 125 256 245 210 185 22 8-18 GT160 / GT190K 150 394 280 240 210 24 8-23 GT190 / GT210K 200 457 335 295 265 26 12-23 GT254 / BAW20S 250 533 405 335 320 30 12-25 BAW17 / BAW20S