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Fine Bubble Disc Diffusers

Reliable Aeration Performance with Fast Supply Support

EnviroValor supplies fine bubble disc diffusers for municipal and industrial wastewater treatment systems. Our EV-270 fine bubble disc diffuser is designed for efficient oxygen transfer, stable bubble distribution, low pressure loss, and long-term operation in aeration tanks.

The diffuser uses an EPDM membrane, durable P.P. support body, and a self-sealing membrane structure that helps reduce wastewater backflow when air supply is stopped.

With standard models available from stock, EnviroValor supports contractors, distributors, and system integrators with faster procurement and replacement needs.

Ready stock available. Fast delivery. Samples available upon request.

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EnviroValor EV-270 fine bubble disc diffuser product photo EnviroValor fine bubble disc diffuser product photo EnviroValor fine bubble disc diffuser product photo EnviroValor fine bubble disc diffuser product photo
Key Product Features

Designed for Practical Wastewater Aeration Applications

EnviroValor fine bubble disc diffusers are designed for practical wastewater aeration applications where stable performance, easy installation, and reliable supply are important.

Fine Bubble Generation Produces fine bubbles to increase gas-liquid contact area
Bubble Size Approx. 1–3 mm
Membrane Material EPDM membrane for wastewater aeration applications
Support Body Durable P.P. base structure
Backflow Prevention Self-sealing membrane design helps reduce wastewater backflow
Energy Efficiency Low headloss design helps reduce blower resistance
Installation Suitable for fixed aeration grids and replacement projects
Supply Standard models available from stock
Structural Design

EV-270 Structural Design

The EV-270 combines flexible membrane performance with a durable diffuser body for long-term wastewater aeration operation.

EPDM Membrane Provides elasticity, tensile strength, and stable fine bubble release
P.P. Support Body Offers durable support for wastewater environments
Self-Sealing Membrane Structure Helps reduce wastewater backflow when air supply stops
Fine Bubble Outlet Design Supports approx. 1–3 mm bubble generation
Low Pressure Loss Design Helps reduce blower load and operating energy demand
Product Specifications and Performance Data

EV-270 Fine Bubble Disc Diffuser

The EV-270 is EnviroValor’s standard fine bubble disc diffuser model for common wastewater aeration applications. It is suitable for municipal and industrial wastewater treatment systems, replacement projects, and system integration.

Available Model

Basic Specifications

Model EV-270
Type Fine bubble disc diffuser
Membrane Material EPDM
Body Material P.P.
Bubble Size Approx. 1–3 mm
Anti-Backflow Design Self-sealing membrane structure
Application Municipal and industrial wastewater aeration
Supply Ready stock available
Technical Performance

Oxygen Transfer Performance

The EV-270 fine bubble disc diffuser is designed to support efficient oxygen transfer in biological wastewater treatment systems. Fine bubble aeration increases the contact area between air and water, helping improve oxygen transfer efficiency during operation.

Model EV-270
Type Fine bubble disc diffuser
Bubble Size Approx. 1–3 mm
Oxygen Transfer Efficiency 25% at 4 m water depth with 2 CMH airflow
Oxygen Transfer Rate 9.96 kg-O₂/hr
Design Focus High oxygen transfer, low headloss, stable aeration
Membrane and Material Data

EPDM Membrane

The EV-270 uses a standard black EPDM membrane designed for municipal wastewater and general wastewater aeration environments. The membrane provides flexibility, deformation resistance, and stable performance during repeated aeration cycles.

Material Standard black EPDM
Application Municipal wastewater and general wastewater aeration
Elongation 588%
Tensile Strength 1715 psi
Hardness 60 Shore A
Thermal Resilience Approx. +3% volume change after 70 hours in 100°C boiling water
Heat Aging Resistance Up to 140°C
Anti-Backflow Design

Self-Sealing Membrane Structure

The EV-270 does not rely on an additional external check valve. Instead, its membrane structure is designed to help reduce wastewater backflow when the air supply is interrupted.

When air pressure is supplied, the membrane opens and releases fine bubbles. When air supply stops, the elastic membrane closes against the diffuser body, helping prevent wastewater from entering the air piping system.

During Aeration Air pressure opens the membrane pores and releases fine bubbles
When Air Stops The elastic membrane returns to a closed position
Benefit Helps reduce wastewater backflow into the diffuser and piping system
Design Advantage No additional check valve component required
Applications

Typical Applications

EnviroValor fine bubble disc diffusers are suitable for a wide range of wastewater aeration applications.

Municipal sewage treatment plants
Industrial wastewater treatment systems
Biological treatment tanks
Aeration tank replacement projects
SBR systems
MBBR and IFAS aeration support
OEM wastewater treatment equipment
Contractor and distributor stock supply
Supply Advantage

Reliable Supply and Fast Support

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Ready Stock

EnviroValor focuses on standard diffuser models with inventory support, helping customers reduce procurement time and respond quickly to project needs.

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Fast Delivery

For available stock items, delivery can be arranged faster than fully made-to-order production, which is helpful for urgent replacement projects, contractor needs, and distributor inventory planning.

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Sample Available

Customers may request sample units before confirming bulk orders. This allows buyers to evaluate product dimensions, membrane quality, and installation compatibility before larger procurement.

B2B

B2B Cooperation

EnviroValor supports contractors, distributors, system integrators, OEM customers, and trading companies with clear quotation terms, delivery schedules, and product information.