Filtration Solutions
Start with the problem you are experiencing. We will help you diagnose the root cause, identify the right application approach, and recommend the products that solve it.
Service Life & Costs
Filter Element Life Too Short
Premature element replacement is the most common complaint in gas filtration. The root cause is rarely the element itself — it is almost always a system or specification issue.
Excessive Vacuum Pump Oil Consumption
If your vacuum pump is consuming more oil than it should, the exhaust is the first place to look. Unfiltered or poorly filtered exhaust carries oil aerosol that never returns to the sump.
High Consumable Costs from Disposable Elements
Glass-microfibre coalescing elements are consumables: they are changed at regular intervals and cannot be cleaned. Where the task is mainly particle or droplet retention, sintered stainless steel or PTFE elements are often the better choice — they can be ultrasonically cleaned and reused. One spare element per filter allows rotation without downtime.
Contamination & Purity
Oil Contamination in Compressed Air
Oil contamination in compressed air is one of the most widespread and underestimated quality problems in industrial facilities. The source is almost always the compressor — the solution is always multi-stage filtration.
Analyser Sample Contamination
When your gas chromatograph drifts, your CEMS reads high, or your moisture analyser gives erratic results, the problem is almost never the instrument — it is what reaches the instrument.
Moisture in Gas Systems
Water in any form — liquid, aerosol, or vapour — is the most common contaminant in compressed air and process gas systems. Left unmanaged, it corrodes pipework, damages instruments, and ruins products.
KOH & Electrolyte Aerosol in Hydrogen Gas
Alkaline electrolysers produce hydrogen saturated with KOH aerosol — a caustic mist that destroys everything it touches downstream. Removing it before the gas reaches dryers, compressors, or storage is not optional.
KOH Removal from Hydrogen Gas
KOH droplets and aerosol carried over from an alkaline electrolyser attack glass fibre, elastomers and lesser metals. For caustic duty we combine a 316L housing with a solid PTFE gasket and sintered PTFE or stainless steel elements. Because long-term behaviour in concentrated KOH depends strongly on the individual process, we recommend a defined test under your own operating conditions before series use.
Liquid Carryover & Slug Loading in Gas Filters
Coalescing elements are designed to remove aerosol — not to handle bulk liquid. When a slug of water, oil, or condensate hits a filter element, the consequences are immediate and expensive.
Water Slugs Reaching the Dryer
An adsorption dryer is built to remove water vapour — not liquid water. When condensate from a cooler or cold pipework reaches the bed as a slug or as aerosol, the adsorbent is loaded far faster than planned and the outlet dew point rises.
Desiccant Dust Downstream of the Dryer
Every adsorbent bed releases fine particles — during filling, under pressure changes and as the beads rub against each other. Without an after-filter, this dust travels downstream into mass flow controllers, valves, analysers and storage.
Particles in the Electrolyte Circuit
The circulating KOH electrolyte of an alkaline electrolyser carries particles from assembly, corrosion, gasket wear and cell components. Without a filter in the loop they reach pump, flow meter, valves and cell. A liquid filter in the electrolyte circuit has to withstand hot caustic — housing, gasket and element material matter as much as the micron rating. Long-term resistance in concentrated KOH depends on the individual process and should be confirmed in a test under your own operating conditions.
Compliance & Safety
Oil Mist in the Workspace
That thin oil film on every surface near your vacuum pumps? It is not just a nuisance — it represents airborne oil mist your operators are breathing. Most occupational exposure limits are well below what an unfiltered pump exhausts.
Emission Compliance
Environmental regulations for exhaust emissions are tightening across Europe. Whether it is TA Luft for stationary engines, EU Stage V for mobile machinery, or local port regulations — compliant exhaust filtration is no longer optional.
Filters in Oxygen Service
On the oxygen side of an electrolyser — or wherever oxygen or oxygen-enriched gas is filtered — contamination is a safety issue, not just a purity issue. Hydrocarbon residues, unsuitable seals or organic binders can ignite in oxygen. Filters for O₂ service are therefore specified as oxygen-cleaned, grease-free assemblies made of compatible materials.
Special Conditions
Sour Gas and Corrosion
When hydrogen sulphide, carbon dioxide, or chloride ions are present in your process gas, standard carbon steel filtration equipment has a limited life expectancy. Corrosion does not give warnings — it causes failures.
High-Temperature Gas Filtration
Above 150 °C, standard aluminium housings, Buna-N seals, and adhesive-bonded elements start to fail. High-temperature gas filtration demands careful material selection across every component.
Explosive Decompression (RGD)
When high-pressure gas is depressurised rapidly, dissolved gas trapped inside elastomer seals expands violently — tearing the material apart from the inside. The result: catastrophic seal failure and uncontrolled gas release.
Problem Not Listed Here?
Every filtration challenge is unique. Describe your situation and our specialists will analyse the root cause and recommend the right solution.
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