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air diffuser for aquaculture system features a unique split pattern and slit shapes, which can disperse air bubbles in an extremely fine and uniform pattern for high oxygen transfer efficiency. A much highly effective and integrated check valve enables the aeration zones to be easily shut down for air-on/air-off applications. It can be operated over a wide range of airflows with minimum maintenance for long term performance.

Manufactured by compression molding with a standard cure,low plasticizer content, and 1mm or 2mm perforations.Compression molding with modern equipment utilizing individual thermocouples and vacuum technology ensures a repeatable very high quality product.

Silicon membranes offer high temperture resistance ,and chemical resistance that differs from other products .Silicon is an inorganic ,and therefore offers excellent resistance tomany organic wastes.Our formulationn is designed to resist tearing and creep,while producing fine bubbles at a modest headloss.

The PTFE surface layer protects the EPDM substrate from chemical attack,while at the same time significantly reducing surface fouling on the membrane.we except to learn that PTFE-coated EPDM membranes outlast standard EPDM,thereby reducing the life cycle costs even further .It is used by major cities worldwide due to the anticipated life cycle cost benefits and reduced maintenance.
Model | HLBQ170 | HLBQ-215 | HLBQ-260 | HLBQ-300 |
Service Area | 0.5-0.8m² | 0.2-0.64m² | 0.25-1.0m² | 0.4-1.5m² |
Slit Quantity | / | 5000 | 8900 | 11000 |
Type of Bubble | Coarse Bubble | Fine Bubble | Fine Bubble | Fine Bubble |
Connector | 3/4 'NPT thread | 3/4 'NPT thread | 3/4 'NPT thread | 3/4 'NPT thread |
MOC | EPDM/Silicon /PTFE membrane ABS/PP carrier plate | EPDM/Silicon /PTFE membrane ABS/PP carrier plate | EPDM/Silicon /PTFE membrane ABS/PP carrier plate | EPDM/Silicon /PTFE membrane ABS/PP carrier plate |
Bubble Size | 4-5mm | 1-2mm | 1-2mm | 1-2mm |
Flow Range | 6-9m³/h | 1-6m³/h | 1-8m³/h | 1-12m³/h |
Service Life | >5 year | >5 year | >5 year | >5 year |
♦ Low resistance loss
♦ Highly Tear Resistant
♦ Anti-clogging, anti-backflow
♦ Ageing-resistant, anti-corrosion
♦ High efficiency, energy-saving

1.Aeration of fishpond and other applications
2.Aeration of deep aeration basin
3.Aeration for excreta and animal waste water treatment plant
4.Aeration for denitrification/dephosphorization aerobic processes
5.Aeration for high concentration waste water aeration basin,and aeration for regulating pond of waste water treatment plant
6.Aeration for SBR,MBBR reaction basin,contact oxidation pond;activated sludge aeration basin in sewage disposal plant












Established in 2007, Holly Technology is a domestic forerunner in producing environmental equipment and parts used for sewage treatment.
Nowadays, our company has developed into a comprehensive enterprise integrating production, trading, design and installation service of sewage treatment equipment.



Yixing Holly Technology Co.,Ltd.
Add: Gaocheng Village, Gaocheng Town,Yixing, Jiangsu,China
Website: //www.hollyep.com
Tel: +86-510-87229907 Fax: +86-510-87975997
Mob: +86-15852760568
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