Ceramic Fine Bubble Diffuser is a high efficiency energy-saving air diffusion device with brown fused aluminum oxide being the main raw material.The process of compression molding and high temperature sintering which makes it of greater hardness and stable chemical properties. This kind of diffuser can be applied to all kinds of domestic sewage, industrial wastewater and aquaculture aeration systems for biochemical treatment.Features  ♦ Simple structure, ease of installation ♦ Tight sealing without air leakage ♦ Maintenance-free design, long service life ♦ Corrosion resistance and anti-clogging ♦ High oxygen transfer efficiencyTypical Applications Technical parametersModelHLBQ178HLBQ215HLBQ250HLBQ300Operating Air Flow  Range (m3/h·piece)1.2-31.5-2.52-32.5-4Designed Air Flow  (m3/h·piece)1.51.82.53Effective Surface  Area (m2/piece)0.3-0.650.3-0.650.4-0.800.5-1.0Standard Oxygen  Transfer Rate (kg O2/h·piece)0.13-0.380.16-0.40.21-0.40.21-0.53Compressive  Strength120kg/cm2 or1.3T/pieceBending Strength120kg/cm2Acid  Alkali-resistanceweight loss 4-8%,not  affected by organic solvents