Fly foundry casts valve body in lost foam casting process in China. 

Valve body is the main component in valve assembling process. According to application and different press test requirements, the 
valve body can be made by casting or forging processes. Material mainly choosen to cast the valve body is grey iron, ductile iron and  carbon steel, alloy steel and stainless steels. The choosen of materials depends on function of the valve bodies. 

Valve bodies can be made by investment casting, sand casting, and lost foam casting process. Especially for the valve body with complex structure, lost foam casting is used to cast them. The foam shells will be evaporated during steel water pouring into the sand shell. There's no need to clean the sands or sand cores.

Production costs are much more lower to cast the complex valve body in lost foam casting process. There's no need to make the complex  pattern as the sand casting process. We need only to profile the foam plates, then assemblied the foam plates together to make the foam 
shells. This will save thhe pattern costs much. There's no need to make the sand cores for the inner cavities. This also save costs. After casting, the corners, even the cavities are more clean, thus, to save the following sand cleaning process. Nowdays, more and more foundries start to use lost foam casting process to produce the complex valve body due to the cost-effective purpose. 

If you have RFQ's on valve body with complex structure, please contact us. We can quote according to your samples or drawings of products.