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DONALDSON | TRAP Breather LED DN25 (1") P564669

The Thermally Reactive Advanced Protection (TRAP) Breather assembly protects the fluids in your storage tank from airborne particulate moisture contamination and ambient moisture.Ā 

It combines a high capacity 3-micron air filter with a deliquescent breather than regenerates itself when air is expelled from the tank. This self-regenerating capability of the TRAP enables extended life and functionality.Ā 

Keep your fluids clean and dry with a Donaldson TRAP Breather.Ā 

PS564669 1" NPT is Suitable for Fixed tanks to 1,000 Litres.


  • High efficiency air filtration
  • Longer life and lower airflow restriction than typical silica gel breathersĀ 
  • Self-regenerating moisture absorption
  • Easy to serviceĀ 


  • For use with all diesel fuels and lubricantsĀ 
  • Above and below ground tanksĀ 
  • Mobile service trucksĀ 
  • Indoor or outdoor applicationsĀ 
  • Most tanks up to 10,000 gal. / 37,854 litres (large tanks may require multiple units)Ā 

Technical Features

Particulate Filter

  • Highly efficient pleated particulate filter stops particle sizes down to 3 Ī¼m at 97%.Ā 

Service Interval

  • Optional mechanical indicator available. Models with no indicator: change breather every 6 months. Ā 

Operating Temperature Range

  • -40Ā°F Ā to +200Ā°F / -40Ā°C to 93Ā°C

Electronic Indicator

  • Actuated by pressure differential, flashes red to indicate change out is needed. Indicator setting, 1 PSID (6.9kPa).Ā 
  • Indicator power source: 3V lithium battery CR2032.Ā 

Mechanical Indicator Kit

  • Install kit between reservoir and TRAP breather. Lock-up style indicator with manual reset. Highly visible, bright red band shows when restriction limit is reached. Indicator setting 20"Ā H2O (5.0 kPa).Ā 


In environments with combustible dusts or vapours, use non-electrical models only.Ā 

TRAP Breather Offering

Part Number Construction Connection Max Airflow (cfm/lpm) Indicator Oil Splash/Mist Containment
P564669 ABS 1" NPTĀ  45 / 1274 Electronic Ā Yes


Contact PETRO industrial'sĀ team of bulk fuel storage and dispensing specialists for more informationĀ today!