Fine Bubble Tube Diffusers
author: lisa
2026-05-15
Fine Bubble Tube Diffusers
Holly fine bubble tube diffuser ensuring a maximum amount of process flexibility – with maximum oxygen yield values. The special arrangement of the air outlet openings ensures fine-bubble aeration with extremely low-pressure loss and therefore a highly effective usage of oxygen across the entire aeration area. The elasticity of the membrane ensures blockage-free operation, even after the plant is switched off. advantage of the channel pipe is that it is resistant to folding (flexure) tears along the perforation lines. The membrane fits snugly over the channeled support pipe, so it is nearly impossible to crease.
Our products are suitable for both, new wastewater treatment plants as well as for the replacement of existing installations from most aeration equipment suppliers.
Our products are suitable for both, new wastewater treatment plants as well as for the replacement of existing installations from most aeration equipment suppliers.
Holly fine-bubble disc diffuser
Modern water and waste water technology requires aeration systems which make a difference ecologically while remaining economically viable, thereby ensuring a maximum amount of process flexibility – with maximum oxygen yield values. This is the basis for efficient biological water purification.
Holly fine-bubble tube diffusers meet these requirements. The elasticity of the membrane ensures blockage-free operation, even after the plant is switched off, and therefore makes intermittent operation problem-free, for example, with nitrification or upstream denitrification
Fine bubble tube diffuser working principle
The air flows through air distribution pipe and connector into the interspace of supporting tube and the membrane, which is sealed on both ends by clamps.
The membrane expands by the air pressure, the micro-perforation opens and the air will be released into the water.
When the air is shut off, the membrane will pull together, the micro-perforation closes that no water can enter the air distribution system.
Tube diffuser installation
The square air distribution pipe is made of stainless steel and has two holes at opposite sides. Round supporting tubes (stainless steel or mostly PVC) require special designed saddle systems. The tube diffuser will be screwed from both sides on the stainless-steel connector till the connection is tight.
Adapter and saddles for round air supporting pipes are also available. For round PVC air distribution pipes and basins with high water flows we suggest to fix the diffuser tubes at the open end with our diffuser tube end-fixing caps at the floor.
Applications for Tube Diffusers
Tube diffusers are also popular choices for equalization basins, aerobic digesters and post aeration systems, as well as flue-gas desulfurization projects (FGD).
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