Bubble Disc Diffusers: DD170 Bubble Type: Coarse Bubble Size: 6 Inch Connector: 3/4'' NPT male thread Bubble size: 4-5mm Material: EPDM /Silicon Membrane,ABS/PP Carrier Plate Product Description Whole Aeration system included the aerator(bubble diffuser) gas distribution pipes, tees,crosses, elbows, regulators, connectors, cleaning devices and other components. Usually gas distribution pipelines is the usual circular arrangement, diffuser quantity is according to the air capacity and ponds size. The diffuser and gas distribution pipelines using G3 / 4 threaded connection, the base is inner thread (fixed in the pipeline), diffuser is externally threaded. Finds Application In : 1. Aeration for SBR reaction basin, contact oxidation pond, and activated sludge aeration basin in sewage disposal plant; 2. Aeration for denitrification / dephosphorization aerobic processes; 3. Aeration for excreta and animal wastewater treatment plant; 4. Aeration of deep aeration basin; 5. Aeration for high concentration wastewater aeration basin, and aeration for regulating pond of wastewater treatment plant; 6. Aeration of fishpond and other applications. Features 1. Simple structure, ease of installation 2. Tight sealing without air leakage 3. Maintenance-free design, long service life 4. Corrosion resistance and anti-clogging 5. High oxygen transfer efficiency Technical Specification Technical Specification Item numberDD170DD215DD260DD350 Bubble TypeCoarse bubbleFine bubbleFine bubbleFine bubble Size6 inch8 inch9 inch12 inch MaterialEPDM/Silicon membraneEPDM/Silicon membraneEPDM/Silicon membraneEPDM/Silicon membrane ABS/PP carrier plateABS/PP carrier plateABS/PP carrier plateABS/PP carrier plate Connector3/4'' NPT male thread3/4'' NPT male thread3/4'' NPT male thread3/4'' NPT male thread Bubble Size4-5mm1-2mm1-2mm1-2mm Design Flow1-5m3/h1.5-2.5m3/h3-4m3/h5-6m3/h Flow Range6-9m3/h1-6m3/h1-8m3/h1-12m3/h SOTE鈮?0%(6m submerged)鈮?8%(6m submerged)鈮?8%(6m submerged)鈮?8%(6m submerged) SOTR鈮?.21kg O2/h鈮?.31kg O2/h鈮?.42kg O2/h鈮?.75kg O2/h SAE鈮?.5kg O2/kw.h鈮?.9kg O2/kw.h鈮?.9kg O2/kw.h鈮?.9kg O2/kw.h Headloss2000-3000Pa2000-4500Pa2000-4300Pa2000-4200Pa Service Area0.5-0.8m20.2-0.64m20.25-1.0m20.4-1.5m2 Service Life>5year>5year>5year>5yearTube Diffuser factory website:http://www.chinambbr.com/water-treatment/tube-diffuser1/