Valve is used to change the medium through the cross-section and flow direction. It has the functions of shunt, cut off, regulation, throttling, check, shunt or overflow. Valve casting is a control part in pipeline fluid transmission system, widely used in chemical industry, petrochemical, petroleum, papermaking, mining, electric power, liquefied petroleum gas, food, pharmaceuticals, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction and other fields.
Speaking of casting process, sand casting is an important method in the manufacture of valve castings. This method is especially suitable for casting steel and iron valve parts. Sand casting is more advantageous in the manufacture of large valve parts than vanishing mould casting and lost wax casting. However, for subsequent machining operations, we usually have to make a little extra allowance for machining. With sand casting, we can cast a maximum weight of about 2 tonnes per part! Lost wax casting is particularly suitable for the manufacture of cast steel valve components, e.g. carbon steel, stainless steel. Valve parts made from lost wax casting have small dimensional tolerances and a particularly smooth surface. Stainless steel valve castings, silicone sol casting process is a popular choice, which is actually also a lost wax method. Butterfly valves, ball valves, are commonly used in this casting process to manufacture. Vanishing mould casting is particularly suitable for the manufacture of precision cast iron valve parts. It not only ensures a good surface finish and dimensional accuracy, but also allows the casting out of the valve parts close to the net shape, so that the subsequent machining allowance is greatly reduced, and sometimes do not even need to be machined again.
Our company provides a variety of valve castings, such as ductile iron butterfly valve, 4 cast iron check valve, 4 check valve cast iron and so on, welcome to buy.