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Epdm Silicon Membrane Disc Air Diffuser 7 Inch 8 Inch 9 Inch

Long Cosy Environmental Technology Wuxi Co., Ltd.
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Epdm Silicon Membrane Disc Air Diffuser 7 Inch 8 Inch 9 Inch

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Brand Name : Long Cosy

Certification : ISO

Place of Origin : China

MOQ : 1 pc

Payment Terms : T/T, L/C,West Union, MoneyGram

Supply Ability : 10000 -30000 per Month

Delivery Time : 7-45day

Packaging Details : Standard Export Package

Product Name : Bubble air disc diffuser aeration tray

Size : 7 inch(215),8 inch(260),9 inch(300)

Factory location : Yixing,Jiangsu Province

Color : White,black,blue

Material of membrane : EPDM or silicon

Material of chassis : ABS

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7 inch 8 inch 9 inch epdm silicon bubble diffuser membrane disc air fine bubble aeration diffuser

Fine bubble diffuser, which is used to transfer air and with that oxygen into sewage or industrial wastewater. Oxygen is required by microorganisms in the water to break down the pollutants. Fine bubble disc diffuser series combines effective design, low installation costs, reliability and high performance in intermittent and continuous aeration processes.Special designed the slits cut opining, patterns and spacing between the slits for high oxygen transfer and longtime operation.

Product show

Main technical parameter

Specifications for bubble air diffuser
Size/ mm215260300
Diaphragm material


(silicon optional)


(silicon optional)


(silicon optional)

Diaphragm thickness / mm2.22.0±0.12.0±0.1
Number of diaphragm openings / pcAbout 5500About 8500About 11000
Bubble diameter/ mm0.8-1.50.8-1.50.8-1.5
Standard ventilation / m³/h1.5-22.5-32.5-4
Drag loss/ kpa2.0-4.52.0-4.32.0-4.0

Standard oxygen transfer efficiency

(6 meters water depth)


Standard oxygenation capacity

/ kgO2/h

Service area/ m²/pc0.25-0.40.3-0.50.3-0.6

Standard Membrane Materials

We provide disc diffusers that are specially designed for a plethora of applications.

The special low plasticizer EPDM is aimed at beverage production, and food and animal processing. The silicone membrane diffuser is specifically created for refining processes, petrochemicals, and the paper industry.

Anti-fouling Surface for Membrane Materials

Relatively based on the latest nano technology, the surface of the membrane materials are meant to prevent the accumulation of both biological and solid encrustations.

Reinforced Polypropylene Support Dish and Ring

We provide disc diffusers with rings and support dish that are strengthened and well-protected by glass fibers for optimum chemical resistance. With this sturdy support dish, it can endure varying temperatures and resist harmful UV rays.

All disc diffusers come with built-in non-return valves to ensure safety and security of the water treatment process. This valve controls the build-up of sludge and prevents its infiltration into the aeration system, especially when the air flow is sporadic.


♦ Quick and Easy Installation

We offer disc diffusers that include pre-fabricated components for easy and fast installation process. In case replacement or maintenance is necessary, the materials can also be removed easily.

♦ Flexible Design

The disc diffuser has an adjustable pipe support system for easy leveling during the installation process. It also fits onto any type of material, which includes ABS, PVC, etc.

♦ Full Pipework System

For minimal issues on the installation and removal process, the disc diffuser boasts fully operational pipework system for enhancing growth and expansion in the long run.


  • Municipal wastewater treatment
  • Industrial wastewater treatment
  • Clean water treatment
  • Sludge stabilization
  • Wastewater ozone diffusion
  • Aeration of fish ponds
  • Aeration of streams and lakes

Production video

Product Tags:

Silicon Membrane Disc Air Diffuser


9 Inch Disc Air Diffuser


Abs Chassis Membrane Disc Diffuser

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