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Xeramic ceramic disc diffusers

Overview Specifications Solutions Documentation & Tools


Product Features
  • Advanced aeration technology with up to 10% higher standard oxygen transfer efficiency (SOTE) and energy savings of up to 30%
  • Perfect for continuous operations
  • Xeramics diffusers fit on existing holders for quick installation and lower labor costs
  • Simplified cleaning system with no need to drain tank 

Increased oxygen transfer efficiency (OTE) lowers energy costs

A proven technology just got better with the new Xeramics fine-bubble diffuser. Its advanced design takes the proven technology of ceramic fine-bubble diffusers and makes it better, with the highest oxygen transfer efficiency compared to other ceramic diffusers – and energy cost savings of up to 30%. The higher OTE reduces the power consumption of blowers. That’s savings that pays back immediately - and year after year.

One to four year payback is what can be expected when old diffusers are replaced with new Xeramic diffusers. A system utilizing Xeramic diffusers has better or comparable SOTE values to membrane-type diffusers. Therefore, Xeramic diffusers are more economical on a 20-year life-cycle period.

Safe, simplified cleaning system

Sanitaire Xeramic diffusers come with an optional, simplified cleaning system that uses a mild liquid cleaning agent. The liquid cleaning agent is easy to handle, and the feed system is simple and direct. It takes the hassle and the worry out of cleaning the diffusers. Treatment capacity can be maintained during cleaning because with the new cleaning system, diffusers can be cleaned while the system stays in operation. No need to shut down a basin for cleaning. Schedule cleaning when needed, not when a basin can be spared.

Fouled diffusers  need much more energy to operate because of increased pressure and higher air requirements. With Sanitaire’s new liquid cleaning system, Xeramics diffuser heads can be restored to like-new condition, keeping energy costs low.



General Information
Xeramic ceramic disc diffusers
Conventional Activated Sludge, MBR, SBR, Oxidation Ditches, Channel Aeration
Air on / air off operation
Shop oxygen transfer test
Performance warranties
Fixed to floor systems
Retrievable (liftable) design available
System Components
Xeramic ceramic disc diffusers
304 SS, 316 SS
Distribution header
304 SS, 316 SS
Liquid purge system
Manual or Automatic Available
Disc diffusers
Controls (optional)
OSCAR process performance optimizer
Blowers (optional)
Positive displacement or centrifugal
SaniClean liquid cleaning system (optional)
Safe diffuser DWP recovery system
Diffuser Properties
Xeramic ceramic disc diffusers
Diffuser types (mm)
Saddle - 178 mm and 229mm
Diffuser types (inches)
Saddle - 7" and 9"
Typical operating air flow range per diffuser
0.5 scfm to 7 scfm (0.8 Nm3/h to 10 Nm3/h)
Typical standard oxygen transfer efficiency (SOTE)
6-8% per m submergence (2-2.5% per ft submergence)
Typical standard aeration efficiency
2.5-6 kg O2 / kWh (5-12 lb O2 / hph)
Special features
High density ceramic blend that improves OTE
Diffuser membrane material
Proprietary Sanitaire Ceramic Blend
Diffuser holder material
Effective surface area
7" = 0.26 ft2 (0.024 m2) , 9" = 0.41 ft2 (0.038 m2)
Orifice size
5.3mm or 6.1mm
Documentation & Tools

Documentation & Tools