First, the pneumatic fixed ball valve Overview
Q647
pneumatic fixed ball valve in the oil, gas, coal and ore mining,
refining processing and pipeline transportation system; in chemical
products, pharmaceuticals and food production species; in hydropower,
thermal power and nuclear power generation system ; It is widely used in
irrigation and drainage systems of agricultural fields and in
irrigation and drainage systems of urban areas and industrial
enterprises; and is widely used in the production system of gold
control, which is closely related to production and construction,
national defense construction and people's livelihood Important
mechanical products. Ball valve closed in a variety of piping systems
used to cut off or connect the media flow, the media in accordance with
the predetermined procedure delivered to the various designated points.
Second, the main parts fixed pneumatic valve material
| Body | Valve stem | Valve ball | Sealing surface | Gasket | filler | Operating temperature | Suitable media |
| WCB | 1Cr13 | 1Cr13 |
1Cr13 Stellite alloy body material |
Flexible graphite stainless steel plus flexible graphite 08 mild steel F304 F316 |
Flexible graphite braided graphite |
-29-425 ° C | Water, steam, oil |
| WC6 | 15CrMo | 15CrMo | -29-425 ° C | ||||
| WC9 | 25Cr2MoV | 25Cr2MoV | |||||
| LCB | 304 | 304 | -46-354 ° C | ||||
| CF8 | 304 | 304 | -196-600 ° C | Some acid, alkali | |||
| CF3 | 304L | 304L | |||||
| CF8M | 316 | 316 | |||||
| 316L | 316L |
Third, the main aerodynamic fixed ball valve dimensions
| DN (mm) | Size (mm) | Actuator model | |||||||||||
| 1.6MPa | 2.5MPa | 4.0MPa | |||||||||||
| L | D | D1 | z-φd | L | D | D1 | z-φd | L | D | D1 | z-φd | ||
| 50 | 203 | 160 | 125 | 4-18 | 216 | 160 | 125 | 4-18 | 216 | 160 | 125 | 4-18 |
Optional the DA / the SR, QGSY, SY-CH, of GTD / the GTE AW / the AWS, SY-D, series actuator (optional above for reference having thereof selection with root according to the actual requirement) |
| 65 | 222 | 180 | 146 | 4-18 | 241 | 180 | 145 | 8-18 | 241 | 180 | 145 | 8-18 | |
| 80 | 241 | 195 | 160 | 8-18 | 283 | 195 | 160 | 8-18 | 283 | 195 | 160 | 8-18 | |
| 100 | 305 | 215 | 180 | 8-18 | 305 | 230 | 190 | 8-23 | 305 | 230 | 190 | 8-23 | |
| 125 | 356 | 245 | 210 | 8-18 | 381 | 270 | 220 | 8-25 | 381 | 270 | 220 | 8-25 | |
| 150 | 394 | 280 | 240 | 8-23 | 403 | 300 | 250 | 8-25 | 403 | 300 | 250 | 8-25 | |
| 200 | 457 | 335 | 295 | 12-23 | 502 | 360 | 310 | 12-25 | 502 | 375 | 320 | 12-30 | |
| 250 | 533 | 405 | 355 | 12-25 | 586 | 425 | 370 | 12-30 | |||||
| 300 | 610 | 460 | 410 | 12-25 | 648 | 485 | 430 | 16-30 | |||||
| 350 | 686 | 520 | 470 | 16-25 | 762 | 550 | 490 | 16-34 | |||||
| 400 | 762 | 580 | 525 | 16-30 | 838 | 610 | 550 | 16-34 | |||||
| 450 | 864 | 640 | 585 | 20-30 | 914 | 660 | 600 | 20-34 | |||||
| 500 | 914 | 705 | 650 | 20-34 | 991 | 730 | 660 | 20-41 | |||||
