Import Air Diffuser Disk Type — Buy in Bulk from Supplier in China

This disk-type air bubble diffuser is designed for municipal sewage and industrial wastewater aeration tanks, transferring oxygen to support aerobic biological treatment. The membrane or ceramic disk sits on a rigid base and produces fine bubbles with high surface-area-to-volume ratio for oxygen mass transfer. The listing does not state membrane material, disk diameter, or airflow capacity per unit; buyers must request these fundamentals to size aeration grids. Typical disk diffusers operate at air flow rates of 1.5 to 5.0 cubic metres per hour per unit and are mounted on PVC or stainless-steel pipe grids at tank floor level.

Membrane disks in wastewater applications are typically EPDM, silicone, or modified polyurethane, chosen for resistance to chemical attack, UV degradation, and biological fouling. Standard disk diameters are 215 mm, 260 mm, or 300 mm, with a height of 25 mm to 50 mm depending on membrane thickness and support structure. The fine-bubble classification generally refers to bubbles below 2 mm in diameter, though actual bubble size distribution depends on airflow per disk, water depth, and membrane slit or pore geometry. The supplier's description emphasises bubble production and slow-rise characteristics, but no SOTR (Standard Oxygen Transfer Rate), SOTE (Standard Oxygen Transfer Efficiency), or alpha factor data are provided.

Buyers are predominantly municipal water authorities, industrial effluent treatment plant operators, and EPC contractors building or upgrading activated-sludge systems. Disk diffusers suit fixed-grid installations in concrete or steel tanks where uniform floor coverage is required. The source description mentions wastewater and sewage treatment without distinguishing municipal from industrial applications; buyers should confirm compatibility with their mixed liquor suspended solids concentration and peak hourly loading. Trade specifics, including unit price, MOQ, and delivery terms, are absent from the data and must be negotiated directly with Jiangsu Envset Equipment Engineering.

Jiangsu Envset Equipment Engineering Co., Ltd is located in the Environment Protection Industrial Park, Gaocheng Town, 214000, China, placing it within Jiangsu Province's environmental technology manufacturing corridor. The trust tier is harbour, indicating a basic listing without additional verification or assurance badges. The response rate is shown as 0.00 percent with zero average response hours, which means the profile either has not generated enquiry traffic or has not logged responses, a signal that buyers should initiate direct contact cautiously.

The company name and industrial park address suggest specialisation in environmental equipment engineering, but the listing provides no founding year, employee count, annual turnover, fabrication facility photos, or client project list. Buyers should not infer scale or capability from the name alone. Request a company profile with business licence number, scope of business registration, and ISO 9001 or environmental management certificates. Ask for reference installations of disk diffuser systems with contactable end users, and verify whether the supplier manufactures the membrane in-house or sources it from a third party, because membrane formulation is the critical quality determinant in fine-bubble diffusers.