Fine Bubble Tubular Diffusers

Fine Bubble Tubular Diffusers

Fine bubble tubular diffusers are specially designed to disperse a large number of fine air bubbles across a wide area in wastewater treatment plants. These long tube-shaped diffusers ensure high oxygen transfer efficiency by releasing uniform, micro-sized bubbles that rise slowly through the water, increasing the contact time and promoting effective aeration.

The diffuser works using a flexible membrane tube with precision-drilled perforations. When air passes through, it produces countless fine bubbles with high surface area. This setup helps in efficient oxygen transfer, essential for breaking down organic matter during biological treatment. It reduces energy consumption and enhances the overall performance of sewage treatment systems.

Bioflow Industries Pvt. Ltd. is a trusted manufacturer and supplier of fine bubble tubular diffusers in India. Our diffusers are made from premium-grade EPDM or silicone membranes and are mounted on strong UPVC or PP support pipes. We offer various sizes, lengths, and custom options to suit specific STP and ETP needs. Known for their durability, consistent performance, and easy installation, our tubular diffusers are ideal for industrial and municipal wastewater treatment plants.

Lengths and diameters can also be customized as per customer’s requirement.

Specifications of Fine Bubble Tubular Diffuser

Specifications BIOFIN 600/65 BIOFIN 1000/65 BIOFIN 1000/93 BIOFIN 2000
Size 65 x 620 mm / 2.6 x 24″ 65 x 1020 mm / 2.6 x 40″ 92 x 1020 mm / 3.6 x 40″ 65 x 2200 mm / 2.6 x 80″
UPVC/PP support pipe OD 63 mm 63 mm 90 mm 63 mm
Membrane ID 63 mm 63 mm 90 mm 63 mm × 2 NOS
Perforation length 600 mm 1000 mm 1000 mm 2000 mm
Min active surface area 0.1 m² 0.18 m² 0.251 m² 0.36 m²
Air flow range/diffuser 2 – 7.5 m³/hr 2 – 10 m³/hr 2 – 15 m³/hr 2 – 20 m³/hr
Standard Design Flow 5 m³/hr 7.5 m³/hr 11 m³/hr 12 m³/hr to 16 m³/hr (Max)
Perforation size 0.65 / 1 / 1.2 mm 0.65 / 1 / 1.2 mm 0.65 / 1 / 1.2 mm 0.65 / 1 / 1.2 mm
No. of perforations 8435 perforations 14080 perforations 22500 perforations 28200 perforations
Bubble size 0.75 – 1.9 mm 0.75 – 1.9 mm 0.75 – 1.9 mm 0.75 – 1.9 mm
Max. allowable air pressure 1.5 Kg/cm² 1.5 Kg/cm² 1.5 Kg/cm² 1.5 Kg/cm²
Max. permissible tank depth 9 m 9 m 9 m 9 m
Oxygen transfer per diffuser (SOTR) SAE in O₂ Kg/Kw/hr/mtr Up to 4 Up to 4 Up to 4.32 Up to 4
Connection size ¾ BSP Male ¾ BSP Male 1.5″ BSP Male ¾ BSP Male
Working area 0.3 – 1 m² 0.4 – 1.5 m² 1 – 3 m² 0.4 – 3.5 m²

Available Types

Applications of Fine Bubble Tubular Diffuser

Features of Fine Bubble Tubular Diffuser