Guaranteed the purest, powered by technical know-how and innovative engineering

Established in 1978, VDH Watertechnology is recognised as a leading authority in in-situ electrolysis. Drawing upon decades of expertise, we are well-equipped to address complex challenges in the industry.

VDH Watertechnology building

Mission

VDH watertechnology is the in-situ electrolysis expert, where we develop, implement, and maintain innovative solutions for our customers, and continuously making these solutions smarter, safer, and more sustainable.

Vision

Our solutions contribute to a cleaner and safer world. We are confident to call ourselves visionary, determined and honest.  

Customization as a solution

Every situation is unique, at VDH we produce both standardized products and completely tailor-made solutions for your situation.

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Our promise: always the right, bespoke certification to meet regulatory standards

Dependability and efficiency are the cornerstones of our service. For industries where only the best will do, we provide superior equipment plus bespoke certification packages, compliance documentation, and industry-grade approvals. We ensure your project meets every regulatory benchmark.

Missing a vital certificate?

Please contact our certification specialists. When a specific accreditation is essential to your compliance and quality assurance, we’ll dedicate ourselves to securing it.

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Technician working at VDH watertechnology

Visionary, Determined and Honest, are VDH's core values

Visionary means we embrace innovation and anticipate future challenges, creating sustainable and advanced electrolysis solutions. We encourage our employees to break away from the conventional path and come up with improvements for products or processes.

We hold a steadfast belief that continuous progress serves the best interests of both our customers and our organisation.
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Determined reflects our drive to act decisively, deliver results, and continuously improve for our customers and partners. A commitment to a hands-on approach is fundamental to our organisation and has been a key factor in our success over the past decades.

Even with nearly 100 colleagues, we maintain a small, accessible company culture, enabling us to adapt quickly and develop creative solutions for our customers.
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Honesty stands for transparency and clarity in everything we do, building trust through open communication and integrity.

These values guide our decisions, shape our culture, and ensure we remain a reliable partner. While honesty may not always be the most celebrated core value, we firmly believe that our commitment to it becomes evident in every interaction.

We are committed to fostering enduring partnerships with our clients, suppliers, and employees through transparency and open communication. This commitment is reflected in our frequent long-term anniversaries and the sustained relationships we maintain with both customers and suppliers.  

Discover our advantage—an exclusive pairing of dual technologies and fully customized solutions.

Technicians working on a salt electrolysis system

Salt electrolysis

Salt electrolysis is a proven technique for generating disinfectants using only water, salt (NaCl), and electricity.

In this process, a  brine solution is passed through an electrolytic cell, where an electric current splits the salt molecules. This produces sodium hypochlorite (NaOCl)—a powerful disinfectant—alongside hydrogen and other by-products.

Membrane technology

We go a step further than common electrolysis. With nearly 50 years of experience we developed in situ membrane cell electrolysis. Membrane cloths within our cells separate the anode and cathode chambers to enable selective ion transfer. This process transforms a brine solution (NaCl + H₂O) into chlorine gas (Cl₂), sodium hydroxide (NaOH), and hydrogen (H₂), with each product contained in a closed system.  
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The result is a highly reactive disinfectant with minimal chlorate or chloride residues, ideal for sectors requiring precise REDOX control, low chemical footprint, and continuous disinfection—such as drinking water, food & beverage, and industrial process water.

technicians working on membrane technology
Engineers standing in front of screen to find solution
Customization is our expertise.

We began our journey in the swimming pool industry and have since expanded to serve a wide range of sectors. With decades of expertise in in situ electrolysis, we are equipped to meet the needs of diverse customers.

Each application—be it process water in dairy operations, wastewater reuse in the paper industry, or hygienic rinse water in food production—presents unique challenges that we address with tailored solutions.
With our standardized building blocks ensuring proven quality, we are flexible to engineer customised systems for every need.  

From on-site chlorine generation via membrane electrolysis to tailor-made system layouts, we factor in flow rates, salt quality and spatial constraints right from the start. This precision engineering prevents chemical overdosing, eliminates degradation of reagents and minimizes environmental impact—delivering a reliable, future-proof installation that maximizes safety, efficiency and sustainability.

Contribute to sustainable and safe solutions?

Willing to roll up your sleeves and join our team in action? At VDH Watertechnology we thrive on a hands-on attitude and bring enthusiasm to every challenge.

Each day is different—and as we expand, we create countless growth possibilities for our employees.

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We offer solutions
in a wide range

Horticulture
Swimming pools

Effective,

clean,

safe

solutions

We put the custom in customer

We understand that every scenario is unique. Besides standardized products, we offer tailored engineering solutions to address your needs.

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Food &
Beverages
Drinking water
Industry