Data Sheets
GO Data Sheet Donaldson TRAP Filtered Tank Breather Assembly
GO Data Sheet Donaldson P506159
GO Data Sheet Donaldson P923075

The kit is supplied with:

• DN80 (3") 304 Stainless Steel fully welded pipe spool - made in Australia by GO Industrial
• DN80 (3") Threaded Male BSP
• 2 x Donaldson P506159 1 1/2" TRAP Breathers
• 2 x 1 1/2" (DN40) Emergency Relief Valves

The Donaldson P506159 1 1/2" TRAP Breather is designed for installation on bulk hydraulic, lubricants and diesel fuel tanks to remove particulate and moisture from air entering the tank, during dispensing operations. 

It combines a high capacity 3 micron air filter with a deliquescent breather that regenerates itself when air is expelled from the tank. The self-regenerating moisture blocking capability of T.R.A.P enables extended life and functionality. 

Features

• 1 1/2" Female BSP Thread
• High Air Flow Bulk Tank design
• 350mm High x 230mm Wide
• Restriction indicator port 1/8” N
• 2.32 PSI/15 kPa relief valve
• Brass fittings with a 1 ½” BSP Socket

Technical Details

Applications

• 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

Moisture Meets It's Match

Donaldson T.R.A.P.™ breathers collect and expel moisture out of tanks and reservoirs. This means you won’t need to change the breather due to water saturation, unlike desiccant filters which require frequent change-out.

Donaldson TRAP water and particulate before it gets in without restricting air flow ? letting your reservoirs breathe easy.

How It Works

T.R.A.P.™ breathers from Donaldson are the only breathers on the market that literally strip moisture vapour from intake air and expel the moisture back to the atmosphere on the outflow cycle. The filter continuously regenerates its water holding capacity!

1. The circuit “breathes in” air containing moisture vapour.
2. The T.R.A.P. breather strips moisture and particulate from the incoming air, allowing only clean, dry air to enter the circuit.
3. During the “exhalation” cycle, the T.R.A.P breather allows unrestricted airflow outward.
4. The outflow of dry air picks up the moisture collected by the T.R.A.P breather during intake, and “blows it back out” – fully regenerating the T.R.A.P breather’s water-holding capacity.

Thermally Reactive Advanced Protection (T.R.A.P.™)

Water has a way of sneaking into your storage tanks / hydraulic circuits ? unless you have a Donaldson T.R.A.P. breather standing guard over your system.

Donaldson’s T.R.A.P. breather removes moisture at relative humidity levels as low as 15%. T.R.A.P. filtration technology reacts instantly to changes in thermal conditions ? blocking moisture.

T.R.A.P. breathers strip moisture vapour from intake air and release it back into the atmosphere on the outflow cycle. The filter continuously regenerates its water holding capacity. T.R.A.P. breathers expel the moisture back out, eliminating the need to change the breather due to water saturation - unlike desiccant filters that require frequent change-out. T.R.A.P. breathers not only protect against moisture but also provide advanced particulate filtration.

TRAP water before it gets in without restricting air flow, letting your hydraulic and lube oil reservoirs BREATHE.