Oil/water separator – AQUAMAT

Intelligent condensate treatment – Safe. Clean. Modular.

When generating compressed air, significant amounts of oil-containing condensate are produced. Oil/water separators adsorb the oil, ensuring the discharge water meets regulatory standards. 

With the AQUAMAT i.CF, KAESER has redefined the concept of condensate treatment. Accordingly, the oil/water separator, available for compressor flow rates from 10.3 to 92.6 m³/min, is equipped with the innovative AQUAMAT CONTROL controller for the first time. This advanced system takes over active process control and ensures clean, predictable maintenance. 

Thanks to ergonomic cartridges, filter material replacement is performed cleanly and without direct contact with the condensate, thereby safeguarding both the environment and service personnel. The modular design concept means that model capacity can be adjusted retrospectively. 

For treatment of smaller amounts of condensate, the practical Aquamat CF 3 and 6 models are available.

Your benefits

  • Safe
    AQUAMAT CONTROL takes over active process control: It makes optimal use of the filter material, determines the residual capacity of the cartridges based on load, makes maintenance predictable and drains the condensate at the touch of a button, thereby ensuring sustainable condensate treatment – and is of course network-capable, as well as being approved by the German Institute for Structural Engineering Berlin (DIBt).
  • Clean
    The cartridge can absorb the entire volume of oil and is equipped with an ergonomic handle. In addition, a bayonet fitting on the collector and a drip-stop valve on the bottom of the cartridge ensure maintenance work can be taken care of swiftly. This protects service personnel and the environment from contamination. The drained cartridge weighs under 25 kg.
  • Modular
    One cartridge size for all models. Practical retrofit kits for subsequent capacity adjustment.
An overview of system cost-effectiveness

Thanks to savings of around 90 % on typical condensate disposal costs, AQUAMAT investment costs are quickly amortised whilst the AQUAMAT itself contributes significantly to the cost balance of your entire system over the long-term – an aspect that's central to KAESER's approach.


Product details

Operation – Active condensate separation
AQUAMAT condensate treatment system – Design
  1. Pressure relief chamber
  2. Piston valve
  3. Measuring chamber
  5. Distributor (piping)
  1. Cartridge
  2. Discharge water collector
  3. Riser channel
  4. Discharge water outlet

The oil-laden condensate flows into the pressure relief chamber (1) in the AQUAMAT i.CF, where it is depressurised to atmospheric pressure and then flows through the piston valve (2) into the measuring chamber (3), 

where the AQUAMAT CONTROL controller (4) continuously monitors the fill level. When the maximum level is reached, condensate inflow is interrupted by closing off the piston valve (2). This creates a condensate volume that can be pressurised. 

The AQUAMAT CONTROL controller (4) pulses the trapped condensate with light pressure surges through the distributor (5) and the cartridges (6). The activated carbon-free filter material inside the cartridges retains the oil contained in the condensate. 

The purified discharge water flows along the bottom of the cartridge into the collector (7) and from there through a riser channel (8) to the outlet (9) of the oil/water separator. 

When the AQUAMAT CONTROL detects the minimum fill level in the measuring chamber, pulsing is stopped, the piston valve is opened, and condensate inflow is restored. 

In the event of a failure (e.g. a power outage), the AQUAMAT i.CF continues to operate as a conventional gravity separator.


The heart of active separation

AQUAMAT CONTROL is the controller for the oil/water separator.

Continuous process monitoring

The AQUAMAT CONTROL monitors the condensate level, ensuring defined and trouble-free condensate flow. The controller captures process parameters and reports malfunctions.

Remaining cartridge service life

AQUAMAT CONTROL determines the remaining cartridge service life based on sensor and process data, in accordance with load. This makes maintenance easily predictable.

Automatic drainage

AQUAMAT CONTROL drains the cartridges at the push of a button, ensuring that each cartridge weighs less than 25 kg to facilitate clean and ergonomic replacement, while also saving on disposal costs.

Network connection

AQUAMAT CONTROL provides process data and notifications via Modbus TCP (Ethernet), enabling process control by master controllers such as the SIGMA AIR MANAGER 4.0.

Local WLAN

The AQUAMAT CONTROL provides local WLAN access, allowing service personnel to access information regarding system configuration, process data and notifications on mobile devices, even without a network connection.

Clean – In all areas
Supplied blanking plugs ensure even greater safety.

Entire oil volume contained

Thanks to generous sizing and optimised filter material utilisation, the entire oil volume is permanently bound inside the cartridge. Contact with service personnel and environmental contamination are therefore reliably avoided.

Draining at the push of a button

Thanks to active separation, the cartridges are drained using light pressure pulses. Lengthy and contaminant-laden dripping when changing the filter material is therefore eliminated. This controlled drainage means that a fully saturated cartridge weighs less than 25 kg.

The valve in the cartridge prevents liquids from leaking.

Bayonet and drip-stop valve

Cartridge replacement is simple and clean thanks to the practical bayonet fitting. The valve in the cartridge prevents liquids from leaking. Supplied blanking plugs provide additional security to prevent any leakage of liquids.

Ergonomic handle

The cartridge inlet pipe is designed as a non-slip, stable handle. Cartridge transportation and installation is therefore exceptionally ergonomic. The cartridge is lifted out of the bayonet fitting with a 45° turn using its ergonomic handle. Fully saturated, it weighs a maximum of 25 kg.

Modular – Easily expandable AQUAMAT i.CF
Practical retrofit kits for subsequent capacity adjustment.

Conventional oil/water separators are designed for a specific condensate volume. Should this capacity be exceeded, e.g. due to increasing compressed air demand, an additional device must be installed. Thanks to its modular design, the AQUAMAT i.CF can easily be adapted for both increased and reduced demand by means of simple retrofit kits.

Sustainable – Controller for sustainable environmental protection
The AQUAMAT CONTROL controller provides state-of-the-art environmental protection.

An oil/water separator whose operation is not monitored or is inadequately maintained can potentially contaminate the environment with oil-laden condensate and wastewater. 

The intelligent AQUAMAT i.CF oil/water separator with AQUAMAT CONTROL provides state-of-the-art environmental protection:

  • The hygienic cartridge concept with automatic drainage and a drip-stop valve at the bottom securely contains the entire volume of oil.
  • The active separation process protects against backflow and consequently prevents condensate overflow.
  • The AQUAMAT CONTROL controller continuously displays the remaining cartridge capacity, ensuring maintenance transparency and predictability.