Impulse-Based Pipeline Cleaning

Comprex® V –
the breakthrough for viscous media

As soon as media become more viscous than water, conventional flushing processes across all industries reach their physical and economic limits.
Comprex® V transfers the proven Comprex® impulse flushing process specifically to applications with increased viscosity.

Physical limits of classic flushing methods

The challenge of increased viscosity

Regardless of the industry or application, as soon as the viscosity of a medium is higher than that of water, the conditions for effective cleaning change fundamentally.

Classic flushing processes are based on continuous flow. This results in a typical velocity profile with a high flow velocity in the center of the pipe and a significantly lower velocity near the pipe wall. However, this is precisely where the cleaning effect is crucial.

In order to still generate shear forces on the pipe wall, the volume flow and pressure are increased.
This approach quickly leads to increasing viscosity:

  • very high demands on pump performance and system mechanics

  • high energy input

  • sharply increasing consumption of the flushing medium used

With water-based media, such effects can often be technically controlled with water.
In many applications, however, water is not permitted, not desired or not useful.

The new cleaning approach

Turbulent and dynamic - Comprex® V

Instead of generating the cleaning effect via ever higher flow velocities, Comprex® V uses the proven Comprex® impulse flushing process: Dynamic pulses generate localized turbulence and targeted shear forces on the pipe wall – quickly, gently andefficiently with far less flushing medium.

The effect is currently proven to be resilient for media in the range of approx. 40-100 cSt.
Extensions to higher viscosities are currently being tested.

Do you currently use complex and time-consuming rinsing technology with high energy requirements? Then Comprex® V can significantly speed up your existing cleaning process and make it much more efficient!

The new cleaning approach

Turbulent and dynamic - Comprex® V

Instead of generating the cleaning effect via ever higher flow velocities, Comprex® V uses the proven Comprex® impulse flushing process: Dynamic pulses generate localized turbulence and targeted shear forces on the pipe wall – quickly, gently andefficiently with far less flushing medium.

The effect is currently proven to be resilient for media in the range of approx. 40-100 cSt.
Extensions to higher viscosities are currently being tested.

Do you currently use complex and time-consuming rinsing technology with high energy requirements? Then Comprex® V can significantly speed up your existing cleaning process and make it much more efficient!

Proof provided – directly patented: A deep dive with in-depth technical information on Comprex® V for all those who want to know exactly: (R&D page on hydraulic oil follows)

The advantages of Comprex® V at a glance

Significantly reduced media requirement for flushing

Due to the pulse-based mode of action, considerably less medium is required than with classic continuous flow or pressure flushing.

Shorter cleaning times

The targeted impulse effect accelerates the cleaning process and reduces downtimes.

Dynamics even in complex structures

Even areas with low flow rates at branches and fittings are reliably cleaned.

Lower investment and operating costs

The Comprex® unit manages with a compact pump - high-performance pumps are not required.

Can be integrated into existing CIP processes

The process can be integrated into existing process and cleaning structures.

Safe use with gas-assisted pulses

If required, pulses are generated using controlled inert gases such as nitrogen.

Can be documented and validated

The cleaning performance can be verified using established testing and validation procedures.

Added value in practice

What classic oil rinses cannot do

In an extensive test campaign with our partner HydaQ, realistic hydraulic lines were set up – including bends, hose sections and a magnetic model with adhesive forces of 17 to 160 kg.

Tested media: hydraulic oils in the 46-80 cSt range
Comparison: classic oil flushing up to 8-10 m/s

The results:

  • Classic rinsing only partially dissolved deposits

  • Visual residual adhesions remained even at high speeds

  • Comprex® V removed the deposits completely with just a few pulses – reproducible and deeply effective

  • Particularly impressive: effect in dead spaces and areas with a low flow rate

  • Significantly lower flushing media requirement at the same time

This provided proof of function for Comprex® V – visible, measurable and documented.

Ready for a better solution?

Start benefiting from the Comprex® advantages today!

Is your current flushing process working – but at the expense of time and resources?
With Comprex® V, you can get significantly more efficiency out of your existing cleaning process. Talk to us about the next level of line cleaning.

One physical principle - many potential media

Versatile applications - a systematic process

Comprex® V is relevant wherever viscous media need to be cleaned – scalable for your process too.

One physical principle - many potential media

Versatile applications - a systematic process

Whether in hydraulic oil lines or in the food, consumer goods or pharmaceutical industries: Comprex® V is relevant wherever viscous media need to be cleaned – scalable for your process too.

Your options with Comprex®
Flexible use - according to your needs
Cleaning service

Fast, professional and ready for use: you book our service and our experienced team of technicians will come to you with the necessary equipment and carry out the cleaning for you – whether as a one-off or regularly as part of your maintenance concept.

Buy system

Would you like to be independent and clean your pipe systems individually and regularly or integrate your own Comprex® cleaning system into your operational processes? No problem, whether mobile or stationary – we have the right system for you and will train your staff.

Technology partnership

A strong partner for hydraulic oil lines: HYDAC

HYDAC is our exclusive development partner in the hydraulic oil sector. HYDAC supplies the system technology – Comprex® the process. Together we have proven that Comprex® V cleans oil reliably even under real conditions with ISO VG 46 – with significantly better results than conventional oil flushing.

This creates a unique technological feature that can fundamentally change the cleaning of oil systems.

"This is a revolution in the oil industry."

Karsten Zyrull, Head of FieldService at HYDAC

What our customers say
Success stories from practice and partnership
Comprex® in facts and figures
Decades of experience
Deployments per year
>
Countries
Comprex® in use and in focus
Projects, specialist articles and practical results
Product linesProfessional article

Effective cleaning and water saving thanks to optimized pulse rinsing process

3R | 07 - 2023 | Trade journal for safe and efficient piping systems. S. 76-70
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Versatile across industrial sectors

Discover more applications

Production systems
Production facilities,
product lines, process &
demineralized water lines,
pipelines
CIP cleaning
More efficient CIP processes for food, beverage and FMCG production
Cooling & temperature control circuits
Chillers, cooling towers,
cooling water pipes,
temperature control units,
machine & tool cooling
Cooling lubricant systems
Coolant lines in machining and grinding processes
Comprex® V impulse flushing process
Comprex® V cleans viscous media efficiently, reliably and in a resource-saving manner - where conventional flushing reaches its limits.
Do you have any questions? We will be happy to help you find the right solution with Comprex®.
Answers to the most important questions

Frequently asked questions about Comprex® V

Which media and rinsing media does Comprex® V work with?

Comprex® V is designed for applications with higher viscosity flushing media. The effect has currently been proven for flushing media in the range of approx. 40-100 cSt. (The viscosity of the flushing medium is decisive.) Extensions to higher viscosities are currently being tested.

Comprex® V can shorten cleaning times and significantly reduce the amount of media used wherever today’s continuous flow or pressure rinsing processes basically work.

Yes, Comprex® V can be integrated into existing CIP and cleaning processes. The design is application-specific, depending on the medium, geometry and process requirements.

With viscous media, conventional flushing methods reach their physical limits. In order to generate sufficiently high shear forces on the pipe wall with a continuous flow, very high flow velocities must be used. This is often associated with high energy requirements, high pressure losses and increased mechanical stress on the system.

The Comprex® impulse flushing process does not rely on a permanently high volume flow, but on short-term flow pulses with a high local speed in the area close to the wall. These pulses repeatedly accelerate the boundary layer and generate high instantaneous shear forces, which are crucial for the removal of build-up and deposits.

The cleaning performance can be verified using established test and documentation procedures, e.g. via particle analyses, residue assessments or process-specific validations – depending on the industry and application.
In short: with the test methods that you use anyway.

Comprex® V can be used across all industries, particularly in the food industry, consumer goods industry, pharmaceuticals, hydraulic oil lines and similar technical applications.

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