Clean with impulses - effective & chemical-free.
We stand for Comprex® – and for efficient, systematic cleaning.
For almost three decades, we have been relying on solutions that clean pipe systems thoroughly and in a resource-saving manner – completely without chemicals. The Comprex® process works purely mechanically with pulses of air and water, ensuring clean pipes and reliable operation.
Comprex® significantly reduces water consumption during cleaning – a contribution to the responsible use of water as a resource and to increasing energy efficiency. Whether municipal networks, drinking water installations or industrial production lines – Comprex® cleans even complex pipe structures thoroughly and reliably.
Fast, thorough, resource-saving - without chemicals
Up to 80% shorter
Up to 100x stronger
Up to 90% less
Up to 10x faster
Find the right cleaning solution for your system
The versatility of Comprex®
Whether municipal networks, industrial systems or drinking water installations in buildings – we find the right cleaning solution for every pipe system.
Municipal
Efficient cleaning of raw water, drinking water and wastewater systems for safe supply and disposal in public areas.
Applications:
- Well & raw water pipes
- Drinking water pipes
- Waste water pressure lines
- Pipes on sewage treatment plants
Building
Effective removal of deposits, biofilms and turbidity – for optimum conditions in hygienic and functional building systems.
Applications:
- Drinking water installations
- Water and foam-based extinguishing systems
- Heating and district heating systems
Industry
Cleaning complex pipe systems in a wide range of industries – for stable processes and reliable systems.
Applications:
- Product lines
- Pipelines
- Cooling and temperature control circuits
- Cooling lubricant systems
- Heat exchanger
- Heating and district heating systems
- Water and foam-based extinguishing systems
Medical
New standards in the pre-cleaning of flexible endoscopes – automated, efficient, hygienic.
Benefit from the Comprex® advantages now!
Whether drinking water and waste water in municipalities, industrial piping systems or water pipes in buildings – each area has its own requirements. We work with you to develop a tailor-made cleaning solution that works, saves resources and delivers lasting results.
This is us - a driving force for clean systems
Efficient. Economical. Conserving resources.
We have been experts in the mechanical cleaning of pipe systems since 1997. We started in Germany in 1997 with pipe network cleaning. Today we operate internationally – as a family business with a passion for technology, a spirit of innovation and a clear view of the big picture.
Responsibility for the environment and the future.
Responsible use of resources is a matter of course for us. Our solutions reduce the burden on the environment and operations in equal measure – for clean systems and a sustainable infrastructure.
The patented Comprex® process
With the Comprex® process, we clean fluid-carrying systems quickly, precisely and reliably – without any chemical additives.
The physical process significantly reduces water and energy consumption and ensures safe operation in municipalities, buildings and industrial plants.
What makes the process so special?
Comprex® uses precisely controlled compressed air pulses and water to create dynamic flows in the pipe system.
This means that even complex structures are cleaned thoroughly and in a controlled manner – efficiently and with impressive results.
Cleaaning blocked culverts
Remove PFAS from extinguishing systems
Cleaning a district heating pipe
Shopping center heating circuit
Injection molding machines medical technology
Paints and varnishes
Large sewage treatment plant
Mold cleaning at KraussMaffei.
Cooling systems steel manufacturer
Tool cleaning shoe industry
Legionella in a curative education center
Legionella and pseudomonads in a pediatric clinic
Turbidity problems in a special school
Cleaning of new systems with Comprex®
Legionella in an indoor swimming pool
Pseudomonads in a medical center
Corrosion products in a residential building
Pseudomonads in a university
Problems with corrosion in a retirement home
PET bottle manufacturer
Injection molding machines Medical technology
KSS machining centers
Cooling lubricant (KSS) Metal processing
Extinguishing water pipeline logistics and transport company
Your Comprex® cleaning center in Landau
Cleaning of a test system at a manufacturer of water-based coatings
Air cooler Incinerator
Large-scale sewage treatment plant
Legionella in a sports hall
More practical examples – Drinking water installation
Overview of practical examples – Waste water
Overview of practical examples – Raw water
Overview of practical examples – Water distribution extraQt®
Overview of practical examples – Comprex® netcare
Overview of practical examples – Comprex® water distribution
More practical examples – Heat exchangers
More practical examples – cooling lubricant systems (KSS)
More practical examples – Machine cooling
More practical examples – Cooling systems
More practical examples – Pipelines






"I wouldn't have believed it if I hadn't seen it myself at the Landau test center. In detailed trials cleaning our products in test pipelines, we reached up to 60% savings in cleaning time and up to 90% in water consumption."
"The MCU-300 from Hammann represents an important component of our innovative industrial hygiene concept. The system is used at Meffert AG both for flushing pipelines and for cleaning stand-alone systems.
The cooperation with the colleagues from Hammann has worked very well since the beginning of the project.
Project planning and commissioning were transparent and professional. All inquiries are processed promptly, and ideas and optimization requests are discussed openly with our technical department even months after commissioning.
The MCU300 is intuitive for our employees to operate, can be used almost anywhere due to its dimensions, and works very reliably."
"Before flushing the main pumping station, we had a pump runtime of almost 20 hours and a pumping capacity of 250 m³ of wastewater. As a result of the flushing action, we were able to determine that on some days we achieve a pumping capacity of 270 m³ of wastewater with a pump runtime of 15 hours. This clearly shows an improvement in the efficiency of our system.
"It is no longer possible to imagine our maintenance of injection molds without the cleaning technology from HAMMANN. The Comprex® cleaning is without alternative in very many applications. Thank you for the excellent and pragmatic service."
"The Hammann company was commissioned to clean the stainless steel gas pipe using their Comprex process. Success was already evident when the cleaning was carried out, as the escaping rinse water was heavily contaminated.
After cleaning and recommissioning, the aforementioned pressure fluctuations did not occur again. It was not easy to create the necessary inlet and outlet to the gas pipeline. It is also problematic to take a gas pipeline out of service for a longer period of time when there is no redundancy. Nevertheless, the effort was worth it, as the cleaning has had the desired effect."
"Our initial skepticism that comprex could be too intense for our piping system was unfounded. The pulse pressure always remains below the network pressure and so we don't have to worry about pipe bursts due to excessive pressure. The pulse flushing process can reduce the deposits in our old network so significantly that maintenance is absolutely economically viable compared to replacement."
"Our conclusion: The test of the Comprex® unit can be rated as thoroughly positive. The cleaning effect can be seen as very good, in some cases even blockages could be loosened. Due to the rather simple operation, the unit could be operated without any problems after the short instruction. No problems were encountered during the test phase.
At this point, we would like to thank you again for the test opportunity and the trust you have placed in us."
"We have had very good experiences with comprex and are very satisfied with the cooperation that has grown over the years. The Hammann GmbH technicians know our network, arrangements are quick and uncomplicated and the assignments are already a fixed part of our annual planning for network maintenance."











































