Ceramic Balls

Ceramic balls are made of Silicon Nitride. It has a feature of excellent corrosion resistance and abrasion resistance, low thermal conductivity, and a high resistance to heat.

Ceramic balls usually use in check valves, flow meters and bearings, etc.

Glass Balls

Glass balls are made of borosilicate. They are dimensionally stable, resist corrosion and chemical absorption well, and can withstand temperatures up to 600°F

Because of the above features and smooth surface, glass balls are usually used for check valves in food processing, pharmaceutical, and photographic processing equipment. Black glass balls are used in flow meters, slip and turn indicators, and other aircraft instrumentation. Fiber optics applications often rely on glass balls because they can be made optically clear. 

Hollow Balls

Hollow balls are often used when reduced weight is required or when balls need to float in fluids or, when light weight or mass is required.

Hollow balls have many applications in industry today. They can be used as floats in various chemicals like hydrocarbon fuels for the transportation industry. Hollow balls can be specified when weight savings is a requirement for the application. Aircraft applications are typical of this requirement. Whether it is in luggage handling areas of the cargo bays on passenger airplanes, or in hydraulic controls of military aircraft, hollow balls save valuable weight. Often, large valve balls are made hollow to save weight of the overall valve. Sometimes hollow balls are used to cover liquids to prevent evaporation or to signal when chemical reactions have taken place by floating when the specific gravity of the fluid has changed.