How to connect the pneumatic UPVC butterfly valve syd-g-dn80 switch type? When selecting lubricants, it should be noted that they can be used to prevent wear when assembling parts. Many lubricants will solidify or become brittle, while many are completely unsuitable for flowing fluids. For this reason, many compounds have been developed for this occasion and have been widely used. There are also many matters needing special attention. For example, when adjusting the liquid fluorine, it will spontaneously ignite in contact with any hydrocarbon; When controlling oxygen, whether at room temperature or cryogenic, there are more common problems. In addition to the possibility of spontaneous combustion when contacting with some impurities, oxygen can also support combustion. If a fire occurs, the entire pipeline system will be burned. Most valve companies need to degrease cryogenic butterfly valves.
、 Pneumatic butterfly valves are widely used in our lives, and they are also relatively simple in structure. However, many people do not know the working principle and classification of pneumatic butterfly valves. According to the structural form, butterfly valves can be divided into offset plate, vertical plate, inclined plate and lever type. According to the sealing form, it can be divided into two types: relatively sealed type and hard sealed type. The soft seal type generally adopts rubber ring seal, and the hard seal type usually adopts metal ring seal. The butterfly valves we usually use are made of the plates of the premonition disc. The difference between the valve body and the butterfly valve well reflects this feature. At present, many people think that the butterfly valve is an allegro, while the description of the butterfly valve is a butterfly valve is more general, but it is also too general.
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