Air breathers and dessicant breathers offer efficient protection for hydraulic systems, transmissions and lubrication systems
In modern industrial plants, mobile machinery, and energy systems, clean air and dry conditions inside tanks, containers, and system components are crucial for trouble-free and long-lasting operation. Breather filters and breather dryers play a key role: They protect sensitive systems from dirt, moisture, and premature wear—an investment in performance, safety, and efficiency.
What is an air breather —and why is it so important?
An air breather ensures that no contaminants enter the hydraulic system or tank during pressure equalization (e.g., when air flows in and out due to temperature changes or oil level fluctuations).
Technical features:
- Filter finenesses suitable for system filtration (e.g., 3–10 µm)
- Replaceable filter elements for various purity classes
- Compatible with system filters according to ISO 4406
Due to their design and filtration performance, breather filters protect, among other things:
- Protect hydraulic systems from abrasive particles
- Protect gears from dust and dirt ingress
- Protect lubrication circuits from premature failure due to contaminated air
Advantage: Increased system availability, reduced maintenance, and extended oil change intervals.
Typical applications:
- Industrial hydraulics
- Construction and agricultural machinery
- All types of transmission systems
- Lubrication systems in manufacturing processes
Available series:
- Pi 0101 - Pi 0185: For stationary and industrial applications with high cleanliness requirements
- Pi 0201: Robust design for mobile machinery and harsh environments
How do dessicant breathers protect your hydraulic systems from moisture and corrosion?
Moisture is one of the biggest threats to hydraulic fluids and gear lubricants. Dessicant breathers remove moisture from the incoming ambient air before it can enter the system – thus preventing corrosion, micropitting, and the formation of oil sludge.
Technical features at a glance:
- Robust, corrosion-resistant plastic housing
- Non-toxic moisture absorber with high water absorption capacity (e.g., silica gel)
- Fine filtration down to 3 µm for simultaneous particle separation
- 100% metal-free design - environmentally friendly & fully recyclable
- Optional with preload valve for pressure-stable applications
- Available in several sizes - tailored to air flow and tank volume
Particularly suitable for:
- Wind turbines (gearbox lubrication)
- Offshore and onshore systems
- Temperature- and humidity-critical applications
Available series:
- TTI desiccant breathers - developed for extreme environmental conditions and the highest demands on air dehumidification
Why do industrial and energy plants rely on ventilation filters from Filtration Group?
Filtration Group Industrial is one of the world's leading manufacturers of high-performance filtration systems for industrial, energy, and mobile applications. Particularly in the area of ventilation filters and ventilation dryers, the company offers technically sophisticated solutions specifically designed to protect sensitive hydraulic and transmission systems. Ventilation filters ensure that only clean, dry air reaches vessels and systems – even under extreme environmental conditions. These components reliably prevent the penetration of dirt particles and moisture, reduce wear, and thus make a decisive contribution to operational safety.
Thanks to a combination of high filtration efficiency, robust design, and environmentally friendly construction, ventilation solutions from Filtration Group Industrial are used worldwide in demanding applications – from wind turbines and lubrication systems to mobile machinery.
