Cleaning Balls for HVAC Systems
Large commercial and industrial HVAC systems, central air conditioning plants in office towers, shopping centres, hospitals, and manufacturing facilities, depend on chiller tube bundles running year-round to maintain building temperatures and air quality. Chiller evaporator and condenser tubes are constantly exposed to circulating water carrying dust, oil mist, biological spores, and dissolved minerals. Biofilm and algae growth reduce heat transfer efficiency, raise energy consumption, and in severe cases create conditions for Legionella growth in cooling water circuits. Sponge cleaning balls and foam cleaning balls circulating automatically through chiller tube bundles keep surfaces clean without interrupting air conditioning operation, reducing energy consumption and maintenance burden simultaneously.
Commercial Air Conditioning · Pipe Cleaning Balls
| Item | Parameter Specification |
| Product Type | Air Conditioning Special Rubber Sponge Cleaning Balls |
| Density | 150–280 kg/m³ |
| Wet Density | 0.95–1.05 |
| Shore Hardness | 25–35 Shore A |
| High Temperature Resistance | -10℃～80℃ |
| Acid and Alkali Resistance | pH 5–11 |
| Tear Resistance | ≥20 kN/m |
| Tensile Strength | ≥1.4 MPa |
| Elongation at Break | ≥260% |
| Compression Set | ≤9% |
| Bend Passing Performance | Excellent, smooth passage through 90°/180° bends |
| Adsorption Performance | Strong adsorption of dust, oil stains, mold, slime |
| Applicable Scenarios | Cleaning of central air conditioning circulating water pipes, heat exchange pipelines |
| Core Features | No jamming when passing bends, thorough cleaning, reduced energy consumption, no secondary pollution |
Recommended Cleaning Balls for HVAC Systems
Sponge Cleaning Balls
Sponge cleaning balls are the primary choice for HVAC chiller tube online cleaning. Shore hardness 25–35A, soft enough to protect copper and titanium tube walls that are standard in commercial chiller equipment, yet effective at stripping biofilm, algae, mold, and oil deposits from tube surfaces on every pass. Excellent bend-passing performance ensures smooth circulation through the complex pipework layouts typical in large HVAC plants. No secondary contamination, no debris falling into the system.
Foam Cleaning Balls
Foam cleaning balls offer an even softer cleaning action for HVAC systems with particularly sensitive tube materials or light fouling loads. The open-cell foam structure maximises surface contact and adsorption, picking up fine particulates, dust, and biological matter without any mechanical abrasion risk. Well suited for systems where tube wall protection is the primary concern alongside cleaning performance.
Selecting the Right Ball for Your HVAC System
For most commercial HVAC chiller systems, sponge cleaning balls provide the right balance of cleaning effectiveness and tube protection for year-round continuous operation. Where fouling is very light or tube sensitivity is the overriding concern, foam cleaning balls are the conservative choice. Both types comply with ISO45001 occupational health and safety requirements, producing no secondary pollution during cleaning. Custom sizes available for non-standard chiller tube diameters. Contact us with your tube specification for a recommendation.