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Industrial air purification since 1987

Corrosion controlPeople protectionEnvironmental care

For more than 30 years the DOLGE team has reliably protected against airborne contaminants and aggressive gases. As a family business we deliver innovative technology and tailored solutions that keep your control electronics free from corrosion and prevent costly downtime.

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Solutions that make the difference

At DOLGE Systemtechnik we understand how gases and air quality affect people, the environment and machinery. We focus on solutions that deliver genuine value to our customers.

01

Prevent production downtime

Our tailored corrosion control solutions comprehensively protect production plants and systems. With advanced technology and individually adapted concepts we preserve your infrastructure against corrosive damage, reduce downtime and increase process efficiency.

02

Eliminate odours

Our solutions make unpleasant odours a thing of the past. Using state of the art technology and precisely fitted approaches we remove disruptive odour compounds effectively and permanently.

03

Measure corrosion potential

Replace guesswork with certainty and see the true scale of your corrosion potential. Our precise measurement methods determine the exact load on your plant. With solid data you can act early and prevent damage in a targeted way.

Free webinar

Odour prevention in wastewater networks

From the pumping station to the pressure main

Odours from pumping stations and pressure mains are a common problem and often avoidable. In this free webinar Swen and Nina show which solutions actually work and how other operators brought the problem under lasting control.

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Industry specific solutions

Tailored solutions for every sector

Every industry has its own challenges and requirements. Our commitment to tailored solutions spans a broad range of sectors including electronics, paper, metallurgy and petrochemicals. Let us show you how decades of expertise address the challenges of your industry directly.

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The paper industry generates odorous and aggressive gases that threaten the controls of high performance paper machines and can cause costly production losses. We are specialists in protecting drive controls in this environment.

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Petrochemical plants run complex processes where modern technology and safety are decisive. We protect process technology from gaseous contaminants and contribute to safety across the sector.

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The wastewater industry contends with many odorous, aggressive and toxic gases. We protect people and electronics alike, whether from corrosion, toxic gases or odours.

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In conservation environments such as museums and archives, gaseous pollutants pose a serious threat to valuable objects. We bring more than 25 years of experience in preventive conservation.

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Metallurgical processes release hazardous gases and safety is paramount. We protect both people and electronics from gaseous contaminants and support productivity and safety.

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Chlorine gas is effective but carries risks in storage and handling. Our safe solutions neutralise chlorine gas quickly and reliably, without any risk of escape or corrosion damage.

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Data is invaluable and its security is the top priority. Alongside cybercrime, ongoing miniaturisation also endangers your data. Dust, gases and humidity raise the corrosion risk for sensitive components.

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Industrial processes generate hazardous gases that can cause electrochemical corrosion. We protect your control electronics from this damage and keep operations running.

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Aerial view of the DOLGE Systemtechnik site in Eschwege, Germany

About DOLGE

Your clean air specialist since 1987

As clean air specialists we have worked with chemisorptive air filtration technology for more than 30 years.

We recognised that many industrial challenges are closely tied to air contamination. We take on these invisible challenges and provide individual, holistic solutions that benefit you and your company.

By permanently removing toxic and malodorous gases from the air we deliver the often underestimated corrosion protection of electronic components, together with protection for plants, people and workplaces.

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How specialists work

From first consultation to clean air

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01

Site survey

We carry out the site survey free of charge at your location. We gain a first impression of the situation, discuss your challenges and record the relevant factors that form the basis of our recommendation.

02

Objectives

We measure the surrounding conditions precisely and derive clear objectives from them. Among other things we determine the corrosion potential and classify your air contamination against common or customer specified standards.

03

Solution concept

Our specialists advise you and produce an individual design concept for your air filtration system. It addresses your specific challenges and suits the conditions on site.

04

Verification

We measure the ambient air of the installed system again and confirm that the intended air quality has been reached. We take the time needed for thorough analysis and optimisation.

05

Service

System and filter medium are checked regularly. We determine the remaining capacity of the medium so it is replaced only when necessary. On request we monitor air quality continuously.

What our customers say

Corrosion control at the Porstendorf board mill

We expected the DOLGE filter system to noticeably reduce our control failures. The results clearly exceed our expectations, because since the filters were installed there has not been a single PLC failure.

Thomas KochHead of Electrical Engineering
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FAQ

Frequently asked questions

What does DOLGE Systemtechnik do?

Since 1987 DOLGE Systemtechnik has developed and supplied chemisorptive air filtration solutions. We permanently remove toxic and malodorous gases from the air, protecting control electronics, plants, people and workplaces.

Which industries do your solutions suit?

We work for the paper industry, petrochemicals, wastewater treatment, metallurgy, water disinfection, IT and data centres, as well as museums, archives and libraries.

What does an initial site survey cost?

The site survey is carried out free of charge at your location. We record the situation, discuss your challenges and gather the data needed for a well founded recommendation.

How does a project with you work?

In five steps: an on site survey, objective setting including measurement of the corrosion potential, an individual solution concept, verification of the ambient air after installation, and ongoing service.

How often does the filter medium need replacing?

We check the system and the filter medium regularly and determine the remaining capacity. It is replaced only when genuinely necessary rather than on a fixed interval.

Can you measure the corrosion potential of my plant?

Yes. Using precise measurement methods we determine the corrosion load on your plant and classify the air contamination against common or customer specified standards.

Contact

We are here for you

Reach us any time for enquiries, quotations or further information. Our team supports you with reliable solutions for industrial air purification.

Office
Dolge-Systemtechnik GmbH
Eisenacher Str. 11
37269 Eschwege
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