Coarse Bubble Diffuser Wastewater Treatment Equipment Wholesale - DUBHE
Product details of the coarse bubble diffuser
Product Information
Every DUBHE coarse bubble diffuser is a product of thinking and craft refined through generations. The product meets standards in terms of quality and performance. Shanghai Dubhe Environmental Protection Technology Co.,Ltd is committed to promoting continuous technological advancement.
Technical Parameters
| MODEL | AFC75 | ReliaBall |
| Diameter (inch) | 4.2 | 3.47 |
| Membrane Surface Area (inch²) | 13.8544 | 35.23 |
| Orifice (inch) | 3/4 | 3/4 |
| Airflow Range (SCFM) | 1-16 | 1-15 |
| Holes Quantity | 10 | 12 |
| Service Life (year) | ≥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 Feature
• With traffic convenience, Dubhe's location has multiple traffic lines passing through. This is good for the outward transportation of Wastewater Treatment Equipment,Reverse Osmosis Membrane Element,Air aerator,Biofilter media,Membrane system,Solid Liquid separation Machine,Pump,Air Blower,industrial mixer.
• Our company has a group of skilled R&D technical personnel and well-trained after-sales service personnel. They play a significant role in our company's sustainable development.
• Dubhe has built a sound service system to provide one-stop services such as product consultation, professional debugging, skills training, and after-sales service.
• Dubhe's sales network covers major provinces, cities and autonomous regions in the country. In addition, Wastewater Treatment Equipment,Reverse Osmosis Membrane Element,Air aerator,Biofilter media,Membrane system,Solid Liquid separation Machine,Pump,Air Blower,industrial mixer are favored by overseas customers and are sold to Southeast Asia, Africa, Australia, and other countries and regions.
Sincerely welcome customers who have needs to contact us for negotiation. I hope we can work together to create a brilliant future.
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