




Donaldson|TRAP-ASSEMBLY
DONALDSON TRAP Filtered Tank Breather Assembly TRAP-ASSEMBLY
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Available to Order
We source this in for you on demand. Order now and we'll secure your unit, or contact us for a firm lead time and freight to your site, warehouse, business or home address.
For a lead time or expedited dispatch, contact sales@goind.com.au or call 07 3204 2240.
Ships from Brisbane warehouse. Standard delivery 2-5 business days Australia-wide.

DONALDSON DUAL-FILTER VENTING FOR BULK FUEL STORAGE
Donaldson TRAP filtered tank breather assembly on a DN80 (3") 304 stainless steel welded spool (made in Australia by GO Industrial), fitted with 2 x Donaldson P506159 1 1/2" TRAP breathers and 2 x DN40 (1 1/2") emergency relief valves. Rated for a 1,000 L/min tank fill rate; removes moisture and particulate from intake air on bulk diesel and lubricant tanks.
Stop contamination at the vent
Bulk fuel tanks breathe as product is dispensed and temperature changes. Without proper filtration, that breathing cycle pulls dust, moisture, and airborne crud straight into your stored diesel or AdBlue. The Donaldson TRAP dual-filter assembly mounts on the tank vent port and stops contaminants before they reach the product. Stainless steel and brass construction handles years of outdoor exposure and corrosive vapours.
Fits standard tank ports
DN80 and DN40 connections suit the vent ports on most 5,000 to 50,000 litre bulk tanks. No custom fabrication or hard-to-source adapters. Mount the assembly, connect to the vent port, and the tank is protected. Filter elements are field-replaceable when service intervals arrive.
Features & Benefits
Key Features
- For use with all diesel fuels and lubricants
- Above and below ground tanks
- Mobile service trucks
- Indoor and outdoor applications
- High flow and large capacity tanks (may require multiple breather units)
- Establish the safe working pressure and vacuum values of your tank before calculating breather requirements
| Spool | DN80 (3") 304 stainless steel, welded, threaded male BSP |
| Breathers | 2 x Donaldson P506159 1 1/2" TRAP |
| Relief valves | 2 x DN40 (1 1/2") emergency relief valves |
| Rated fill rate | 1,000 L/min |
| Function | Removes moisture and particulate from intake air |
| Use | Bulk diesel and lubricant tanks |
| Made in | Australia by GO Industrial |
Shipping & Dimensions
Ships from Brisbane warehouse. Standard delivery 2-5 business days.
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Compatible Products
Frequently Asked Questions
Can't find your answer?
Contact UsWhat is the Donaldson TRAP breather assembly?
A dual-filter head that mounts on tank vent ports to stop water and particulate contamination entering stored fuel, AdBlue, or oil. Stainless steel and brass construction with DN80 and DN40 connections.
What size tanks does this suit?
Suits bulk storage tanks with DN80 or DN40 vent ports. Common on 5,000 to 50,000 litre diesel, AdBlue, and oil tanks at construction sites, farms, and transport depots.
How often do the filter elements need replacing?
Depends on dust levels and tank breathing frequency. Typical service interval is 12-24 months in clean environments, 6-12 months in high-dust sites. Elements are field-replaceable.
Can this handle outdoor installation?
Yes. Stainless steel and brass materials resist corrosion from weather and tank vapours. Designed for permanent outdoor mounting on bulk fuel tank vents.
What warranty and support is included?
12-month warranty on assembly defects. Filter elements are consumables and not warranty items. For installation advice or replacement elements, contact sales@goind.com.au or 07 3204 2240.











