Illustration: Golden Section Graphics im Auftrag der Circle of Values Communication GmbH

COMPREX® is a method for impulse-flushing, which is developed and proven by our company. The performance of COMPREX® is constantly redefined by innovations and patents. COMPREX® works without chemical cleaning agents, but completely based on physical effects – just with air and water.

COMPREX®: the principle.

After the section which has to be cleaned is defined, the flow velocity is reduced to slow, laminar flow. At the beginning of the section, there is an inlet point, at the end of the section an outlet point. While the water flows slowly through the pipe, impulses of compressed air are added at the inlet point. This leads to packages of air and water. These packages go through the pipe with high velocities of 10 – 20 m/s.

COMPREX®: the effect.

These strongly accelerated packages cause high turbulences with strong shear forces. Thus, fouling material is mobilized and discharged reliably. Many pipe networks are old and consist of easily damageable material, such as grey iron. HAMMANN is able to clean even those pipes reliably and gently, because the maximum pressure of the COMPREX® process is kept below the operational pressure of the system. Pear pressures are damped by the air blocks, which act like an airbag in those cases.

COMPREX®: an overview of the advantages.

• Hygienic
Hygienic conditions in cooling circles and water pipes ensure clean water.

• Ecological
eco-friendly process for cleaning without chemical cleaning agents and less demand of biocides

• Energy efficient
Reduction of friction losses saves energy for the pumps. Reduction of thermal fouling resistance increases the thermal efficiency of heat exchangers

• Economical
excellent cost-benefit ratio, short shutdown times, low demand of water, no turbidities and pressure drops in neighboring pipe networks, water supply in network sections next to the cleaned parts are not affected

COMPREX®: the different levels of performance.

We are constantly redefining our COMPREX® process, to offer it to you in different levels of performance – individually adjusted to your peculiar case.

Modulated impulses

Invest Power – Save Water
We redefined our COMPREX®-Process with that feature: The “turbo” with the revolutionary technique of modulated impulses is used when stronger shear forces are needed with less demand of water.

Injection of solids

Low temperatures for high performance
Extremely persistent incrustinations of biofilms cannot be mobilized by pulsed air and water alone. In these cases, the third aggregate state comes into action: ice cubes. These ice cubes are injected with the compressed air and result in strong friction forces and a stronger capability to mobilize impurities. After having fulfilled their purpose, the ice cubes melt. This is hygienic, inexpensive and does not require chemical cleaning agents.

What you get out of COMPREX®.

  • IL9A5202
  • IL9A5240
  • IL9A5320
  • IL9A5335
  • IL9A5344
  • IL9A5353
  • IL9A5366
  • IL9A5372
  • IL9A5390
  • IL9A5408-2

Ochre sedimentations, chalk or manganese - COMPREX® brings to light what you usually won´t see. Here, we show you the unknown things, which result in so many problems, sediments and scales in any imaginable form.

Our equipment

Our equipment ist one of Hammann´s key success stories. A technical unit consists of a trailer and a van. The van contains a workshop and an office, the trailer a compressor with a control unit. Therefore, a technical unit is highly mobile and flexible. Since two decades, the technical division of Hammann GmbH could accumulate a vast base of knowledge and experience to develop, build and maintain its equipment.


Your contact person

Do you want to learn more about COMPREX®
Our services are performed by Hammann GmbH directly in Germany. In some neighbouring countries (France, Netherlands,..) our cooperating companies are offering these services. Customers from other regions have the possibility to purchase our equipment with license to perform and offer COMPREX®-cleaning in their region. We are looking forward to give you advice personally, via phone or via e-mail.

Our specialists on our different business fields are lookings forward to your request.

National und international
Dipl.-Bbw. Thomas Bröde, Managing Director
t.broede |at|

What does COMPREX® offer you?
Purest Efficiency.