There are many types of butterfly valves, and I firmly believe that we have more or less experienced mastery before, often heard: pneumatic butterfly valve, electric butterfly valve, rocker butterfly valve these, then the material of the butterfly valve is composed of what, do we master?

Material of butterfly valve
The universal material key is pig iron, cast steel, stainless steel plate three categories, below is aimed at the three categories to carry out a detailed introduction:

1. Cast steel
Cast steel is a kind of forged aluminum alloy, is not after carbide changes in condensation for the production of casting parts of titanium cobalt alloy collectively, cast steel material is the biggest advantage is convenient and plasticity, to cast steel butterfly valve for steam, non-corrosive vapor body, crude oil these, the overall performance is not as good as stainless steel plate.

2, stainless steel plate
Stainless steel plate refers to the resistance to gas, steam, water and other weak corrosion and chemical acid, alkali and salt and other organic chemical corrosion of steel, stainless steel plate butterfly valve is the best performance is, in the standard bad working conditions, in some high temperature and high pressure, low temperature, acid and alkali corrosion strong material pipe can be applied, stainless steel plate butterfly valve strength is stronger, the longer the service life.

3. Pig iron
Pig iron also has: gray cast iron, ductile casting, malleable cast iron, in which gray cast iron and ductile casting is more common. The production of gray cast iron accounts for more than 80% of the total output value, and the performance and wear resistance of gray cast iron are very good, but the compressive strength and toughness are not as good as other pig iron
Above is a detailed introduction of the common butterfly valve material, according to the price, stainless steel plate is the largest, gray cast iron is the most cost-effective, we can carry out the selection according to the specific.