The Function of Double eccentric butterfly valve for EPS block molding machine

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The Function of Double eccentric butterfly valve for EPS block molding machine

The Function of Double eccentric butterfly valve for EPS block molding machine

Myaid Machinery supply EPS block molding machine ,Hot wire CNC cutting machine,Foam recycling machine from China.These machines are big stocks and lead time is fast to supply.We supply machines and also solutions for clients.Our website: 

 Double eccentric butterfly valve for EPS machine

Double eccentric butterfly valve is also named as high performance butterfly valve, mainly used in water plant, power plant, steel smelting, chemical industry, water source spring project, environmental facilities construction and other miscellaneous unified drainage Dabin is suitable for use as regulating and intercepting equipment in waterway pipeline. Compared with the medium line media valve, the double eccentric butterfly valve is more resistant to high pressure, longer life, and good stability
Double eccentric butterfly valve is further improved on the basis of single eccentric butterfly valve, and it is also the most widely used. Its structure is characterized by the axis of the valve stem being off from both the center of the butterfly plate and the center of the body. The effect of double eccentricity makes the butterfly plate quickly detach from the valve seat after the valve is opened, which greatly eliminates the unnecessary excessive extrusion and scraping between the butterfly plate and the valve seat, reduces the opening resistance, reduces wear, and improves the life of the valve seat. The substantial reduction of scraping also makes it possible to use metal seats for double eccentric butterfly valves, which improves the application of butterfly valves in high temperature fields. However, because the sealing principle is a position sealing structure, that is, the sealing surface of the butterfly plate and the valve seat are in line contact, and the sealing effect is produced by the elastic deformation caused by the butterfly plate squeezing the valve seat, so the requirements for the closing position are very high (especially for metal seats), and the pressure-bearing capacity is low, which is why traditionally people think that butterfly valves are not resistant to high pressure and have a large leakage volume.
  • Nominal diameter: DN50-400mm
    Working temperature: -40~450℃
  • Valve body material: carbon steel, stainless steel, alloy steel
    Valve stem material: stainless steel, alloy steel
  • Three components (optional): solenoid valve, filter, return signal
Suit for EPS block molding machine 
  • EPS pre-expander machine
  • EPS shape molding machine
  • EPS block molding machine

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