Choosing the right filter media is crucial for achieving optimal water treatment results. Polyester fiber balls offer a highly effective solution, but understanding their specifications is key to selecting the most appropriate type for your specific application. These specifications dictate the performance characteristics, such as filtration efficiency, flow rate, and contaminant-holding capacity.

Key Specifications to Consider:

  • Ball Diameter: Fiber balls are typically available in various diameters, commonly ranging from 25mm to 80mm. The choice of diameter can influence the packing density and the overall voidage within the filter bed. For instance, a mix of diameters can sometimes provide a more optimized filtration bed structure.
  • Material: While various fibers can be used, 100% polyester fiber is prevalent due to its excellent durability, chemical resistance, and filtration properties. Ensure the material is suitable for your water chemistry and operating conditions.
  • Porosity: High porosity (often around 96%) is a hallmark of fiber balls. This high void volume allows for greater water flow and a higher capacity to trap contaminants without causing excessive pressure drop.
  • Density: The density of fiber balls is typically around 1.38 g/cm³. This is a crucial factor for proper bed loading and performance. The filling density, often between 60-85 kg/m³, also plays a role in how the media is packed and functions within the filter.
  • Specific Surface Area: A large specific surface area, often stated as 3000m²/m³, indicates the total surface available for adsorption and particulate interception. A larger surface area generally leads to more effective removal of fine contaminants.
  • Filtration Speed/Rate: Fiber balls are designed for high filtration speeds, typically between 20-85 m/h. This allows for higher throughput and more efficient operation compared to slower media.
  • Dirt Interception Capacity: This metric, often around 6-10 kg/m³, quantifies how much contaminant the fiber ball media can hold before requiring backwashing. A higher capacity means longer filter cycles.


By carefully considering these specifications, users can select the optimal polyester fiber balls for their needs, whether it's for swimming pool filter balls, sewage water filtration balls, or other industrial applications. Understanding these details ensures maximum efficiency and longevity from your filtration system. NINGBO INNO PHARMCHEM CO.,LTD. provides detailed specifications and expert guidance to help you make the best choice for your water treatment requirements.