Filtering media – ensuring purity.
Why Filtration Matters
Whether it’s technical gases, hydrogen, natural gas, compressed air, or mixed gases—any contamination can disrupt sensitive systems. Typical consequences include inaccurate measurement results, high maintenance requirements, unplanned downtime, or even safety-critical damage.
That’s why filtration is now one of the fundamental steps in gas treatment, utility supply systems, test environments, and energy technology. With the right filter, these risks can be reduced sustainably—while improving efficiency, safety, and system availability at the same time.
What Filtration Achieves in Real-World Applications
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Retaining contaminants
Dirt particles, abrasion residue, rust, condensate, or oil mist can enter systems in a wide variety of ways—such as through the media source, piping networks, or mechanical processes. Filtration prevents them from being carried further downstream and protects subsequent components.
Ensuring process and product quality
In laboratories, test rigs, and production lines, media purity directly affects the outcome. Consistent quality is only possible when the gas flow remains free of contaminants.
Reducing safety risks
Contaminated media flows can contribute to pressure surges, overload seals, or cause malfunctions in high-pressure systems. Filtered media helps reduce these risks.
Increasing system availability
Clean media reduces wear—lowering maintenance effort, spare parts demand, and unplanned downtime.
More stable processes
Clean media reduces disruptions and ensures consistent, repeatable system operation—even under high loads.
Low-Maintenance & Resource-Efficient
Well-designed constructions enable fast service procedures and reduce material consumption during ongoing operation.
Efficient media purification
Contaminants such as particles, abrasion residue, oil mist, or moisture are reliably retained—ensuring clean media and smooth, trouble-free operation.
Designed for demanding operating conditions
Engineered for applications with high pressures up to 490 bar, a variety of media, and strict safety requirements.
Learn more about WEH® Filter Technology
Reliable protection for your systems
Where Filtration Is Used – Typical Applications
Clean processes & consistent gas quality
WEH® Filtration solutions provide clean, dry gases—directly at the point of use or within centralized gas supply systems. They protect downstream components, ensure consistent gas quality, and sustainably improve process reliability and safety.
Typical applications:
Before cylinder filling
Filtration within the production line to prevent contaminants before filling gas cylinders or cylinder bundles.
Directly at the point of use
For example, downstream of the cylinder valve, pressure regulator, or outlet fitting—to ensure gas quality before it is used in the process.
In piping systems
Centralized or decentralized filtration to ensure purity in supply systems—for example in laboratories, production lines, or test benches.
Protection for hydrogen & CNG systems
WEH® Filtration solutions reliably retain solid and liquid contaminants—helping maximize system uptime, ensure precise processes, and extend the service life of system components.
Typical applications:
On the vehicle side (on-board filtration)
Fueling station infrastructure
Dispensers, storage systems, or compressors—wherever H₂ or CNG is handled under high pressure. Filters prevent particles and liquids from entering sensitive system components.
Industrial applications / test systems
High-pressure test rigs, supply systems, or line testing in industrial and OEM environments. Protects complex systems and process-critical components.
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Why WEH?
Quality You Can Rely On
Our products are manufactured to the highest standards. At WEH, quality is no coincidence – it’s our standard, ensured by 100% final inspection and certified processes.
Service You Can Rely On
By choosing a WEH® product, you’ve chosen long-lasting quality. And our service ensures it stays that way. Whether maintenance, inspection, repair, or original spare parts – our experienced team is committed to maximum safety, efficiency, and preserving the value of your equipment.
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Questions about application, technology, or spare parts? Our technical support team is here for you – direct, competent, and without detours. Personally available and globally reliable.