Float balls are basically buoyant objects that are made in different shapes. Spherical and cylindrical float balls are the most common. Both strength and buoyancy must be observed in making float balls. Flexibility of the material must also be assured so as to withstand pressure.
The main use of float balls is in monitoring fluid levels within containers. It is for this reason that they are used to demarcate surface levels of fluids in containers. Translucent tubes can also use float balls in checking fluid levels. All float balls work mainly on the premise of buoyancy. For this to be observed, the density of the material used to make a float ball must be lower than that of the fluid in which the ball is to be used. This is what guides the type of material that is to be used for making the float balls.
Most float balls are either made of plastic or stainless steel. Several factors inform the choice of these two materials. In the case of plastic, it is a material that is known to be light hence very buoyant. Application of plastic float balls therefore cuts across many sectors. There are other factors that can however inhibit the use of plastic float balls. Fluid type is one of such factors.
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Plastic does react with some fluids. Much as plastic is buoyant enough in such fluids one needs a different material to make float balls. Stainless steel comes in handy in such situations. This is because stainless steel is not very reactive. Most chemicals are not known to react with stainless steel.
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Different sectors of life use stainless steel float balls. Food processing within the food industry is one of such sectors. Float balls are used in fluid food tanks so as to observe fluid levels. Stainless steel float balls come in handy since such food products may have chemical contents that could react to materials such as plastics. The pressure in food tanks also requires strong float balls which stainless steel guarantees.
Float balls are also used in chemical engineering yet again to check fluid levels. Obviously, some chemicals used in this industry are highly corrosive and would react with many metals. However, most chemicals used are not known to react with stainless steel. Pressure and temperature are also common aftermath of industrial chemical reactions. This obviously means that one must use float balls that can withstand such extreme conditions. Another strong reason why stainless steel float balls are opted for. The other area where stainless steel float balls are used is in demarcation of fluid levels of water and sewage in vacuum trucks that transport these two fluids.