Disc diffuser system type ABS – Thetys Pumps

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Disc diffuser system type ABS

Thetys Pumps / Products / Compressors and aeration / Disc diffuser system type ABS

Disc diffuser system type ABS

A reliable solution for efficient oxygen transfer

The reliable disk diffuser system is one of the world’s most widely-installed fine-bubble aeration systems, available in four alternative diffuser models. Preassembled diffuser elements enable fast and easy installation. Retrofits are available to increase aeration efficiency.

Main benefits

Reliable and long-lasting
Low pressure drops and therefore higher efficiency
Possibility of future increase in aeration capacity
Quick and easy installation
Flexible layout design
High temperature endurance
Suitable for aggressive wastewater

Main applications

Aeration of municipal wastewater
Aeration of industrial wastewater, with some restrictions

Main design features

All diffusers have a built-in non-return valve which provides additional safety to the treatment process by preventing sludge infiltration into the aeration piping system when the air flow is interrupted. The KKI215, and PRK/PIK300 diffusers are interchangeable for retrofits, offering high flexibility.

Diffusers with EPDM rubber membrane discs:

PIK300 fine-bubble

Polypropylene main body and an antifriction ring to protect the membrane
Suitable for both continuous and non-continuous aeration processes

PRK300 fine-bubble

Strong main body, making it suitable for SBR, MBR, and MBBR processes
Antifriction ring protects the membrane
PRF300 retrofit for upgrading 215 mm diffusers to more efficient systems

KKI215 fine-bubble

Suitable for both continuous and non-continuous aeration processes
Special support for use in deep basin applications, in water up to 15 m deep

Sucoflow DS 20 fine-bubble

Ideal for high-density and retrievable aeration systems
Easy-to-fit thread connection

Key characteristics

Diffuser diameter	PIK300, PRK300: 336 mm KKI215: 215 mm Sucoflow DS 20: 500 mm
Membrane surface area	KKI: 0.025 m² PIK, PRK: 0.060 m² Sucoflow DS 20: 0.183 m²
Operating range (+20°C; 1 013 mbar)	KKI215: 0.5–4 m³/h PIK300, PRK300: 1.5–8 m³/h Sucoflow DS 20: 1–15 m³/h
Max. operating temperature:	PRK300, KKI215: 80°C PIK300, DS 20: 100°C