This post offers an introduction to widely used butterfly valve materials. For the butterfly valve, we must curently have a certain understanding, there are numerous types of butterfly valves, according to the different types of link, they can be divided into wafer butterfly valves and flanged butterfly valves.

According to the sealing materials, it can be separated into soft sealing Bundor Butterfly Valve Agent Wanted and metal hard seal butterfly valve;

Based on the traveling mode, it can be divided into handle butterfly valve, worm equipment operated butterfly valve, pneumatic butterfly valve, electric butterfly valve etc.

Do you know the frequently used butterfly valve components?

Widely used butterfly valve materials mainly consist of cast iron, cast steel, and stainless. Each kind of material can be subdivided further. Now we are going to introduce the fabric of those three varieties of butterfly valves.

The first category: cast iron

Subdivided into cast iron, there are grey cast iron, malleable iron, ductile iron, nickel cast iron 4. This short article primarily presents the 2 kinds of cast iron materials which can be produced by Bundor valve, including gray cast iron and ductile cast iron.

Grey cast iron is a cast iron with flake graphite, which is known as gray cast iron because the bone fracture is dark grey when fractured. Grey cast iron happens to be the most widely used cast iron, as well as its productivity profiles for more than 80% of the total output of cast iron.

Grey cast iron casting qualities, cutting overall performance, put on level of resistance are extremely good. Its disadvantages are definitely the low strength, ductility and toughness in comparison with other cast irons.

The usage of grey cast iron as Bundor Gate Valve Agent Wanted material is normally appropriate for mediums with weak acid and weakened bases such as water and air, and it is not suitable for use within pipelines that contains perchloric acidity and nitric acidity.

Ductile cast iron is a kind of higher-power cast iron materials. Its strength, toughness and put on resistance are incredibly high. Its extensive performance is close to that of metal. Currently, the scope of application of ductile iron is second just to grey cast iron. We often state that “iron-based steel” refers to ductile iron.

With ductile iron because the butterfly valve materials, it has a certain level of rust level of resistance, overall performance is much more than the gray cast iron materials butterfly valve, as well as its applicable method consists of vapor, general qualities of gasoline and oil and so on.

The 3rd category: stainless steel

Stainless steel describes steels resistant against weakened corrosive media including air, steam, and water, and nrsvjk imprinted mass media including acids, alkalis, and salts, as well as known as stainless acid-proof steels.

Generally stainless steel Bundor ANSI Ball Valve Agent Wanted materials, performance is the best, can be employed to more severe operating problems, in some extremely-higher temperature, ultra-reduced temperature, acid and alkali corrosive medium water pipe use, while stainless-steel butterfly valve solidity is more powerful, more Put on resistance, lengthiest service life.

The above mentioned will be the widely used material of the butterfly valve. Usually, according to the price, the buying price of the stainless-steel butterfly valve will be the greatest, as well as the grey cast iron is the least expensive.

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