Valve balls are designed for optimum performance when regulating the flow of liquid through the Ball valve. These are used for heavy duty, high-pressure and high-tolerance applications. Valve Balls are manufactured in various diameters varying from ½ to 60 inches.

Typically Valve Balls are made out of stainless steel, Stellite, Titanium, brass, steel, Hastelloy, or nickel. They can also be made of different types of plastics such as PVC, PP, ABS, or PVDF.

Steel valve balls are consistently hardened and tempered throughout the manufacturing process to achieve the greatest strength and quality. Valve Ball hardness is controlled within a range of temperatures depending on the requirements.

Stainless steel valve balls, on the other hand, afford the advantage of superior hardness combined with corrosion-resisting assets. This hardness, together with precise configuration and a smooth finish, makes them especially useful for heavy load bearing applications and valve applications such as Oil refining, petroleum, Natural gas and refining industries.  Some stainless steel balls are magnetic for automated use. 

There are different ratings and stainless steel surface finishes to suit the environment to which the material will be exposed to. Stainless steel does not stain, corrode, or rust as easily as ordinary steel. It differs from carbon steel by the amount of chromium present. Carbon steel will rust when it is exposed to air or moisture while Stainless steel has sufficient amounts of chromium with which enables an inactive film of chromium oxide to form which will prevent the surface from corrosion and will also prevent corrosion from dispersing into the metal's internal structure.

Titanium has a low density but it is strong and corrosion-resistant from elements such as the sea water salt and chemical elements such as chlorine.

Titanium can be alloyed with iron, aluminum, vanadium, molybdenum for example, to produce a strong lightweight alloy for use in industrial processes such as Oil refining, Petroleum, Natural gas production and Refining industries. 

Stellite alloy is a range of cobalt-chromium alloys that are designed for extreme durability. It may also contain tungsten or molybdenum and a little amount of carbon. There are a number of Stellite alloys, with various compositions manufactured for different uses. The Stellite cobalt alloy is completely non-magnetic and corrosion-resistant. The Stellite part is specifically cast so that only nominal machining of the alloy is necessary. Stellite is more commonly machined by grinding, rather than by cutting the metal and Stellite alloys also have tremendously high melting points due to the cobalt and chromium presence.

Valve balls are also made from Hastelloy alloys which covers 22 different highly corrosion resistant metal alloys made up from adding various alloying ingredients to nickel. The chief function of Hastelloy alloys is that they can withstand high-temperatures and stress, even in extremely corrosive and erosion susceptible environments where the more common iron-based alloys succumb.

Inconel is a registered trademark and belongs to another category of super alloys characteristically by their use in high temperature applications. Inconel alloys are materials that are oxidation and corrosion resistant. They are ideally suited for use in intense environments. When heated, Inconel forms a thick, stable, unreceptive oxide layer that protects the surface. Inconel is durable and keeps its strength over a wide range of temperatures. This is especially useful for high temperature applications where aluminum or steel may submit.

Inconel's ability to withstand high temperatures is created by solid solution strengthening or precipitation strengthening, depending on the alloy used. It is often found in extreme environments and because of its unique properties and can be particularly useful in the Oil refining, Petroleum, Natural gas production and Refining industries; especially the natural gas progressing industry where contaminants are present.

The heavy duty materials used in the manufacturing of valve balls such as those mentioned above are resistant to very high temperatures, the atmosphere and corrosion and abrasion from chemicals, liquids, gases and various elements which act upon them.