Flange triple eccentric multi-level hard seal butterfly principle of pneumatic valve

flange triple eccentric multi-level hard seal butterfly pneumatic valve products can be used in petrochemical, food, medicine, textile, papermaking, electric power, sewage treatment, water supply and drainage and refining and other industrial piping. Available in a variety of gases, liquids semifluid and micro particles of powder conveying pipeline or container as control medium flow to the opening and closing mechanism. Flange triple eccentric multi-level hard seal butterfly pneumatic valve can be installed in any position.
flange three eccentric multi-level hard seal butterfly pneumatic valve series, has certain self-cleaning capacity, used in steel mills, municipal pipelines such as sewage pipes can show a variety of advantages, do not need to maintain, and good sealing, convenient operation.
flange triple eccentric multi-level hard seal butterfly pneumatic valve structure and function principle:
. Three eccentric multi-level hard seal butterfly pneumatic valve flange and other butterfly pneumatic valve biggest difference lies in: USES three eccentric structure design. The butterfly plate installation center and the design of rotating center has serious eccentricity. When ℃ pneumatic valve is opened and fully open, pneumatic valve of pneumatic butterfly valve seat sealing surface and the butterfly plate is in a state of no contact, and closed when the butterfly plate with the pneumatic valve stem cyclotron and partial into pneumatic valve seat sealing surface and make it closed. Reason for less in the process of opening and closing, no wear and prolong the service life of pneumatic valve.
. GuiLong butterfly pneumatic valve pneumatic valve seat adopt embedded type O rubber ring or fluorine plastic for the gasket seal. Therefore, the temperature difference and wear has the function of self compensation to ensure that the butterfly GuiLong pneumatic valve to the closed don't leak.
. When the butterfly pneumatic valve pipe fluid pressure into groove, pneumatic valve seat seal letter because Posson 's component principle, make the seal when the pipeline pressure and o-rings expansion force and the resultant force, the pneumatic valve seat sealing surface to the butterfly plate and make the pneumatic valve seal. This unique seal structure can be produced with the increase of the line pressure greater the sealing force.
. Adjustment of the pneumatic valve pneumatic seat can be fine-tuning. Used in pneumatic valves after a fixed number of year, when there is leakage of sealing ring to wear, can be in not open under the condition of pneumatic valves, by adjusting the screw sealing ring fine-tuning to butterfly plate the direction to the size of the need, can be compensated and with a new pneumatic valve sealing performance of the same.
. Flange three eccentric multi-level hard seal butterfly pneumatic valve series except with manual device is compatible with a pneumatic or electric device manual adjustment pneumatic valve, pneumatic butterfly valve, Can be attached to the feedback signal and add buy electricity in pneumatic valve positioner and electric pneumatic valve butterfly six series of products, the three categories.