PP PE PVC CPVC Plastic Hollow Ball / Polyhedral Hollow Floating Ball 25mm 38mm 50mm 76mm for Water Treatment, Scrubber & Liquid Surface Covering

Short Description:

Plastic Hollow Ball (Polyhedral Hollow Ball) is a lightweight, floatable random packing made from PP, PE, PVC, CPVC, and other thermoplastics. Its hollow spherical structure with internal fan blades provides high voidage, low pressure drop, and uniform gas-liquid contact, while also serving as an effective liquid surface covering to reduce evaporation, heat loss, and odor emission in water treatment and chemical storage applications.


  • Product Name: Plastic Hollow Ball
  • Material: PP / PE / PVC / CPVC / RPP / PVDF / PTFE
  • Size: 10 / 20 / 25 / 38 / 50 / 76 / 100 mm
  • Shape: Hollow sphere
  • Feature: High voidage, low pressure drop, chemical resistant, floatable
  • Application: Water treatment, scrubber, degassing, liquid surface covering
  • Product Detail

    Product Tags

    Product Introduction

    Plastic Hollow Ball (Polyhedral Hollow Ball) Product Description

    The Plastic Hollow Ball, also widely known as Polyhedral Hollow Ball Packing or Plastic Hollow Floating Ball, is a versatile plastic random packing formed from two hemispheres that assemble into a hollow sphere. Each hemisphere contains multiple semi-fan-shaped blades arranged in a staggered pattern around a central reinforcing ring. This structure creates a packing with high free volume, uniform porosity, and excellent gas-liquid distribution. Made from chemically resistant thermoplastics including PP, PE, PVC, CPVC, RPP, PVDF, and PTFE, it is suitable for a broad range of operating temperatures and corrosive environments. Beyond tower packing, the hollow ball is widely used as a floating covering layer on liquid surfaces to suppress evaporation, control heat loss, and prevent mist or odor release in tanks, basins, and treatment units.

    Product Highlights

    • High Voidage & Low Pressure Drop: The hollow spherical structure and internal blade design create high free volume, reducing gas flow resistance and energy consumption in packed towers.
    • Excellent Chemical Resistance: Available in PP, PE, PVC, CPVC, PVDF, and PTFE to withstand acids, alkalis, and organic solvents across a wide temperature range.
    • Effective Liquid Surface Covering: When floated on liquid surfaces, the balls overlap tightly to form a continuous covering layer that reduces evaporation, heat loss, and the release of odors, mist, or acid fumes.
    • Lightweight & Floatable: Low density (PP approximately 0.89–0.91 g/cm³) allows the balls to float naturally on water and aqueous solutions, while also reducing tower structural load.
    • Uniform Gas-Liquid Contact: The internal fan blades promote liquid film renewal and uniform distribution, enhancing mass transfer efficiency in absorption, scrubbing, and degassing processes.
    • Versatile Application Range: Suitable for packed towers, scrubbers, degassing units, water treatment tanks, acid storage covers, and aquaculture or decorative applications.

    Parameter

    Size (mm) Surface Area (m²/m³) Void Ratio (%) Bulk Density (kg/m³) Number per m³
    φ25 460 84 145 64,000–85,000
    φ38 325 87 125 25,000–28,500
    φ50 236 90 105 11,500
    φ76 150 92 90 3,000–3,100

    Application

    Random packing application scenarios02


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