Pütz Standard Desiccant Breather
The Pütz Standard Desiccant Breather range provides high-efficiency moisture and particulate control for hydraulic reservoirs, gearboxes, IBCs, transformers, and lubrication storage systems. Ideal for oil reservoirs with high air flow, each breather replaces a standard vent cap or paper filter — ensuring all incoming air is filtered to 3-micron absolute and dried through indicating silica gel (blue) to prevent water ingress and airborne contamination. Available in four sizes to suit applications from small gearboxes to large industrial systems.
Technical Specifications
| Particulate Rating | 3 μm absolute |
| Moisture Control | Indicating silica gel — colour change blue → pink when saturated |
| Housing | Polycarbonate |
| Gaskets | Buna-N |
| Operating Temperature | -20°C to +90°C |
| Maximum Humidity Exposure | 100% RH |
| UV Resistance | High |
| Service Life | Dependent on humidity, airflow, and system cycling frequency — replace after 1 year or when silica gel turns pink |
Model Selection
| Model | Connection (NPT/BSP male) | Airflow Capacity (L/min) | Silica Gel (g) | Dimensions W x H (mm) | Typical Applications |
| DB-PUTZ-ST1 | 3/8" | 10–40 | 50 g | 63.5 x 89 | Small gearboxes, reservoirs |
| DB-PUTZ-ST2 | 1" | 40–100 | 150 g | 101.5 x 155 | Hydraulic reservoirs |
| DB-PUTZ-ST3 | 1" | 100–200 | 300 g | 101 x 206 | Mobile equipment |
| DB-PUTZ-ST4 | 1" | 150–250 | 500 g | 101.5 x 257 | Large industrial systems |
Features
| •Indicating silica gel (blue) provides clear visual saturation monitoring — replace when gel turns pink |
| •3-micron absolute particulate filtration — removes fine dust and airborne contaminants from all incoming air |
| •No check valve — airflow passes freely through the breather whenever the equipment breathes, making it ideal for high airflow oil reservoirs |
| •Integrated standpipe provides even airflow distribution and vibration resistance |
| •Outgoing air vents through the same filtration path — protects silica gel from oil mist and extends service life |
| •Rugged impact-resistant polycarbonate housing — suitable for industrial and mobile equipment |
| •Threaded multi-fit mounting for fast installation on reservoirs, gearboxes and IBCs — replaces standard vent cap or paper filter |
Applications
| •Hydraulic power units |
| •Gearboxes and bearing housings |
| •Lubricant storage drums and totes |
| •Transformers |
| •Mobile equipment |
| •Industrial machinery exposed to dust or humidity |
Installation & Maintenance
| •Remove existing vent or filler cap and ensure mounting surface is clean and free of debris |
| •Thread breather onto port hand-tight — do not overtighten |
| •Inspect silica gel colour regularly — replace breather after 1 year or when gel reaches full saturation (turns pink) |
| •Avoid exposure to direct oil mist to maximise service life |
| •Store unused breathers indoors in a sealed package |
For low airflow oil reservoirs, see the Pütz Check Valve Breather range. Contact Lube Control Pty Ltd on 1300 917 946 or sales@lubecontrol.com.au for further assistance.
Technical Documents
Putz Standard Breather
Download PDFDisclaimer
Technical specifications may change. Please confirm with the manufacturer.
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sales@lubecontrol.com.au
1300 917 946
+61 8298 5563