Teach you 6 pneumatic valve stem preventing method

self-reliance type pneumatic valve adjustment in the process of daily use, can appear the problems such as mountains, however, these problems and to cause a decline in self-reliance type regulating the performance of the pneumatic valve, then self-reliance type adjustment pneumatic valve how to prevent the card? Self-reliance type adjustment below by wenzhou pneumatic valve manufacturer to teach everyone: self-reliance type adjustment, pneumatic valve stem preventing major have a method to solve and avoid:
, washing method: pipeline welding slag, rust, pulp are under the throttle mouth, guiding parts, pneumatic valve cover balance hole blocked or stuck pneumatic valve core surface, guide surface strain and scratches, etc. Encounter this situation, it is necessary to remove for cleaning, remove the slag content, such as the sealing surface damage should also grinding; At the same time open the bottom plug to flush out from under the balance hole fall into the slag content in pneumatic valve cover, and the pipeline to wash. Before put into operation, to adjust the pneumatic valve fully open, the medium flows into normal operation again after a period of time.
and dielectric flushing method: using the medium their energy flushing, flushing and take things easy to precipitate, easy to jam, thus improve the combat the function of the pneumatic valve. Common methods include:
a flow into closed type use;
b in pneumatic valve;
c puts throttling mouth wash the worst place, using this method to pay attention to improve the resistance to erosion ability of throttling parts.
, straight to the Angle: the pass-through for S flow, flow complex, upper and lower chamber should dead zone, provides the medium of precipitation. Angle connection, flows through ℃ medium like elbow, washing performance is good, dead zone is small, easy to design into a streamline.
and increase the throttle clearance method: medium solid particles or washed off in pipe welding slag and rust due to pass the throttle mouth such as jam, jam, such as fault, can convert the throttle gap bigger throttle piece - Throttling area of a window, open the pneumatic valve core, sleeve, rather than the circumference of a circle because of the throttling area of concentration distribution, fault can easily be ruled out. If you are single, two-seater pneumatic valve can change the plunger type pneumatic valve core to 'V' shape of the mouth pneumatic valve core, or into a sleeve pneumatic valve etc.
and external flushing method: for some easy to precipitate, medium containing solid particles using ordinary pneumatic valve adjustment, often at the throttle mouth jam, guide, can the pneumatic valve cover bottom plug in an external erosion gas and steam. When regulating pneumatic valve is blocked or jammed, open external pneumatic valve, gas or steam can be completed in fixed adjustment under the condition of pneumatic valve flushing work, make the normal operation of pneumatic valve.
and installing pipeline filter method: for small diameter adjust pneumatic valve, especially ultra-small flow control pneumatic valve, the throttle gap very small, even a little residue will be blocked in the medium, the best pipe on the installation of a strainer in front of the pneumatic valve, to ensure that the media to go through. With the adjustment of the positioner used pneumatic valve, locator is not normal work, the pneumatic throttle mouth blockage is the most common fault.