Filling machine characteristics determine the delivery system; a high viscosity liquid may need a slower release nozzle. Product loss is another key consideration when selecting machinery to install. In liquid filling machine system, positioning the bulk-holding container at lower level than the filling equipment gives adequate air displacement from the conducting lines hence a purer product.
The volume of the product filled must be considered when selecting a vial. Low volume of fills may require a conical shaped bottom rather than normal cylindrical bottle. Light sensitivity of products determines the color of vials and even the regulations of the market.
Determining Appropriate Stoppers
The stopper material or rubber is also determined by the physical and chemical characteristics of the product. Products derived from mineral oils are incompatible with butyl stoppers. The length of time of contact between stoppers and product also affects the type of stoppers used.