linear bearings

Fluorine-butterfly regulator stuck or jam how to deal with?

by:AIRWOLF     2020-05-18
Fluorine-butterfly regulating valve in use process sometimes due to the principle of medium, cause sticking or congestion, fluorine-butterfly regulator cannot work normally, at this time, you should avoid it happened, or to deal with it, introduce a few kinds of methods below, only supplies the reference: cleaning pipeline welding slag, rust, pulp are under the throttle mouth, guiding parts, valve cover balance hole blocked or stuck valve core surface, guide surface strain and scratches, seal surface indentation, etc. This often happens in the early new operation system and put into operation after overhaul. This is the most common fault. 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 residue inside the valve cover, and the pipeline to wash. Before put into operation, let the lining fluoride valve fully open, the medium flows into normal operation again after a period of time. External flushing method for some easy to precipitate, medium containing solid particles using ordinary valve adjustment, often at the throttle mouth jam, guide, can the cover bottom plug in an external erosion gas and steam. When the valve is blocked or jammed, open an external gas or steam valve, can be in the case of fixed fluorine-butterfly regulator do wash, make the normal operation of valve. Install fluorine-butterfly regulator of small diameter pipeline filter method, especially ultra-small flow fluorine-butterfly regulating valve, the throttling clearance, small, medium can't have a little residue. Blockage in the situation, the best pipe on the installation of a strainer in front of the valve, to ensure that the media to go through. Locator using fluorine-butterfly regulator, locator is not normal work, the pneumatic throttle mouth blockage is the most common fault. With locator at work, therefore, must deal with gas source, usually adopts the way is in front of the locator increase air pipe installed on the air filtering pressure reducing valve throttle clearance method such as 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 big throttling parts & ndash; Throttling area of a window, open the valve core and the 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-seat valves can change the plunger type valve core to & quot; V' Shape of the mouth valve core, or into a sleeve valve, etc. Such as a chemical plant has a two-seat valves often gets stuck, recommend to switch to the sleeve valve, problem be solved immediately. Dielectric flushing method USES the scouring of medium energy, wash and take things easy to precipitate, easy to jam, thus improve the function of valve stem. Common methods include: (1) flow into closed type use; (2) adopts streamlined body; (3) puts throttling mouth wash the worst place, using this method to pay attention to improve the throttling parts material erosion resistant ability. Straight to the Angle through to pour S flow, flow complex, upper and lower chamber should dead zone, provides the medium of precipitation. Angle connection, flows through 90 ℃ medium like elbow, washing performance is good, dead zone is small, easy, designed to streamline. Therefore, using the pass-through fluorine-butterfly regulator slight jams can be used to Angle valve.
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