DN215mm EPDM Membrane Disc Aerator Diffuser With 1 - 3 mm Fine
Bubble
Product Description
Disc Aerator Diffuser is an aeration device developed in the 1980s. The device has small
aeration bubbles, large gas-liquid area, uniform diffusion of
bubbles, and no blockage of holes. The variable microporous aerator
is designed as a slightly convex arched surface and uses reinforced
PP plastic as the main body. The diaphragm has an EPDM rubber with
an anti-adhesion surface. It is made through processing. The
diaphragm opening is selected from German numerical control
openings to ensure the quality and accuracy of the hole. When the
aerator is oxygenated and aerated, four air supply slots are
designed on the surface of the main body, so that the incoming air
is buffered by the check valve and sent directly to the center of
the aeration head to ensure that the diaphragm can be easily opened
with low resistance at one time. The diaphragm is mechanically
assembled with rib anti-lock, and the diaphragm does not fall off.
The micro-holes on the air distribution membrane swell and expand
by itself during air intake to ensure the passage of air. When the
aeration is stopped, the variable micropores on the air
distribution membrane are closed. Since the variable micropores on
the air distribution membrane expand and contract by themselves,
the phenomenon of blocking the micropores of the aerator is
avoided. Secondly, a check valve device is arranged on the chassis
of the aerator to prevent the mixed liquid from entering the gas
distribution branch pipe when the pipeline system stops supplying
air, so as to prevent the branch pipe from entering the mixed
liquid and being blocked. The incoming air does not need special
filtering, and intermittent aeration is not blocked, and it is
common for variable microporous aerators to have air distribution
membranes that are easy to blow and tear and cannot open the
diaphragm or the diaphragm is blocked. Large technical
improvements, these several technological reforms make it avoid the
pain of maintenance in long-term operation, and it is a new
generation of excellent products.
Product Features
1. The aeration plate is equipped with deformation resistant
strengthening structure, expanded gripping structure and anti
falling sealing bar to ensure the structural stability of the
product under high strength and long-term operation conditions and
prevent the diaphragm from falling off.
2. The thickening treatment of diaphragm coil ensures the air
tightness and reliability of the product. The thickening treatment
in the center of the diaphragm together provides the extension
compensation, resists mechanical strain and increases the service
life of the diaphragm.
3. The product is equipped with a check structure to effectively
prevent the backflow of sewage. Multiple check structures can be
added according to process requirements.
4. The vulnerable parts of the support plate are strengthened and
durable; the air flow mode is optimized to reduce the resistance
loss of the extension, and the product is efficient and
energy-saving.
Process characteristics
1. Professional membrane surface treatment process, special "I"
shaped patent drilling process from inside to outside,
Ensure that the surface is smooth, the pores are small, the product
is not easy to scale, the bubbles are small, and the air
distribution is even,
It can effectively reduce the shear damage of bubbles to activated
sludge particles and improve the biochemical activity of the
system.
2. Rubber molding technology is adopted to ensure even specific
gravity of diaphragm, multi-directional tear resistance and high
tear strength.
3. The product is assembled by plastic welding process, and the
traditional adhesive method is canceled, so the product performance
is stable and reliable.
4. It is suitable for municipal wastewater and industrial
wastewater, and can be used in SBR, cast and other intermittent
aeration processes
Technology Parameter
| Model | HSPD215 | HSPD260 | HSPD350 |
| Bubble Type | Plate Type |
| Pic. |  |
| Size | 8 inch(215mm) | 9 inch(260mm) | 13 inch(350mm) |
| MOC | EPDM membrane |
| Strengthern PP carrier plate |
| Connector | 3/4"NPT male thread |
| Bubble Size | 1-2mm |
| Flow Range(m³/h) | 1-6 | 1-8 | 1-12 |
| Design Flow(m³/h) | 1.5-2.5 | 3-4 | 5-6 |
| STOE | ≥38%(6m submerged) |
| STOR(kg O2/h) | ≥0.31 | ≥0.45 | ≥0.75 |
| SAE | ≥8.9kg O2/kw.h |
| Headloss | 1500-4300pa |
| Service Aera(m2) | 0.2-0.64 | 0.25-1.0 | 0.4-1.5 |
| Service Life | >5 years |
