Coarse Bubble Disc Diffuser Fine Bubble Disc Diffuser Wholesale - DUBHE
Company Advantages
· DUBHE coarse bubble disc diffuser is an innovative design product developed by the concerted effort of a strong R&D team and professional design team. It is in response to the requirements of home and abroad customers.
· The quality inspection process is conducted by our efficient QC team.
· DUBHE has acquired the certifications of coarse bubble disc diffuser, and provides one-stop solution with quality inspection.
Technical Parameters
| MODEL | ECD215 (7inch) | ECD/AFD270 (9inch) | ECD/AFD350 (12inch) |
| Active Surface Area (m²) | 0.0225 | 0.0375 | 0.065 |
| Size (inch) | 7 (215mm) | 9 (251mm) | 12 (330mm) |
| Design Flow (m³/hr) | 0.5-2.5 | 2.5-5.0 | 4.0-8.3 |
| Membrane Thickness (mm) | 2 | 2 | 2 |
| Hole Size (mm) | 1mm or 2mm | 1mm or 2mm | 1mm or 2mm |
| Slit Quantity | 3900 | 6600 | 10155 |
| SOTE (%) (4.5m Water Depth) | 22-40 | 31-59 | 35-59 |
| Drag Loss (Pa) | 1285-2124 | 2200-4100 | 2000-4400 |
| Service Life (year) | ≥5 | ≥5 | ≥5 |
Product details
Material
EPDM diaphragm performance parameters
| Item | Criteria | Unit | Values |
| Hardness | ASTM D2240-95 | Shore A | 60 |
| Tensile strength | ASTM D412-92 | N/mm² | >2000 |
| Tear strength | ASTMD624-91,Die T | N/m | >110 |
| Permanent deformation at 100% elongation | ASTM D412-92 | % | <5% |
| Maximum elongation at tear | ASTM-D412-92 | % | 600 |
| Ozone Resistance (70hours, 40°C, 50mPa partial ozone pressure, no decomposition) | ASTM D1171-94 | - | eligible (voter etc) |
| UV resistance | - | - | Qualified |
| Hot air ageing resistance (70hours, 70°C) | ASTM D573-88 | - | Tear strength change rate <3% |
| - | Change in tearing elongation <25% | ||
| - | Hardness change <5 degrees | ||
| Rate of change of deformation in compression (22hours, 70°C) | ASTM D573-88 | % | <20 |
| Liquid Resistance, Volume Change (water, 70hours, 100°C) | ASTM D471-94 | % | <3 |
| Low Temperature Resistance (-40º C, non-crisp) | ASTM D832-92 | - | Qualified |
| Attached: Membrane material composition table | |
| Polymer | 58% |
| Carbon Black | 17.5% |
| Plasticisers | 19% |
| Others | 5.5% |
PTFE test report
SSI PTFE and PEEK coated diffusion films do not contain PFAS or PFOA.
When SSI worked with suppliers to develop coatings in the 2000s, SSI insisted on coating packages that did not contain heavy metals or by-products that could theoretically be used in potable water service, even if our products were used in wastewater.
Drawings & Dimensions
Applications
FAQ
Company Features
· As a well-known manufacturer of coarse bubble disc diffuser, Shanghai Dubhe Environmental Protection Technology Co.,Ltd has a large market share.
· We have employed a professional sales team. Their in-depth knowledge of the coarse bubble disc diffuser market allows us to build the appropriate sales strategy to maximize the product’s success. We have advanced manufacturing facilities. This allows us to place the highest level of attention to quality control throughout the production process, from start to finish. Thanks to progressive partnerships, we have established a good reputation in the global market. This allows us to export products like coarse bubble disc diffuser across the globe: USA, Europe, Asia, and South America.
· Shanghai Dubhe Environmental Protection Technology Co.,Ltd will take immediate measures to help customers for problems happened to our coarse bubble disc diffuser. Call!
Product Details
We value the quality of our products. And we strive for perfection in every detail of products. In this way, we guarantee the fine quality of our products.
Product Comparison
Compared with other similar products in the market, Dubhe's coarse bubble disc diffuser is provided with the following outstanding advantages.
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