Aerator type Disc aerators
Installation Submerged
Aeration gas Air
Maximum air flow (m3/h) 10
 
 
 

The ABS disc diffuser system (Nopon) is a highly reliable fine bubble aeration system for municipal and industrial wastewater. Five alternative diffuser models are available, all of which are fast and easy to install and maintain.

To ensure diffuser efficiency is kept high, ABS offers a formic acid cleaning system in which the acid is introduced into the air pipe.

As the acid and air pass through the diffuser, they prevent the build up of clogging agents without having a negative effect on the biological process.

Diffusers with rubber membrane disks

PIK300 fine-bubble

  • Polypropylene main body and an anti-friction 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
  • Anti-friction ring protects the membrane
  • PRF300 retrofit for upgrading 215mm 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 15m deep

Diffusers with porous polymer disks

HKL215 fine-bubble

  • Double high-density polyethylene disk to reduce diffuser pressure drop
  • Thin upper surface layer of fine material for forming small bubbles
  • Lower support layer for mechanical strength
  • Suitable for continuous aeration applications and especially for aggressive types of wastewater

MKL215 medium-bubble

  • Single high-density polyethylene disk
  • Suitable for continuous aeration applications
  • Ideal for aeration in processes where solid concentrations are high, such as sludge aeration and pre-aeration


The ABS disc diffuser system (Nopon) is a highly reliable fine bubble aeration system for municipal and industrial wastewater. Five alternative diffuser models are available, all of which are fast and easy to install and maintain.

To ensure diffuser efficiency is kept high, ABS offers a formic acid cleaning system in which the acid is introduced into the air pipe.

As the acid and air pass through the diffuser, they prevent the build up of clogging agents without having a negative effect on the biological process.

Diffusers with rubber membrane disks

PIK300 fine-bubble

  • Polypropylene main body and an anti-friction 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
  • Anti-friction ring protects the membrane
  • PRF300 retrofit for upgrading 215mm 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 15m deep

Diffusers with porous polymer disks

HKL215 fine-bubble

  • Double high-density polyethylene disk to reduce diffuser pressure drop
  • Thin upper surface layer of fine material for forming small bubbles
  • Lower support layer for mechanical strength
  • Suitable for continuous aeration applications and especially for aggressive types of wastewater

MKL215 medium-bubble

  • Single high-density polyethylene disk
  • Suitable for continuous aeration applications
  • Ideal for aeration in processes where solid concentrations are high, such as sludge aeration and pre-aeration


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Sulzer address and contact details

Sulzer Pumps Wastewater UK Ltd
5th Floor
Astral Towers
Betts Way
Crawley
RH10 9UY
Tel: 0870 608 0123
Fax: 01293 527972
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Disc diffuser system type ABS