TRAP Breather

Keep moisture and dirt OUT of your hydraulic reservoir with Donaldson’s innovative new technology, the Thermally Reactive Advanced Protection (T.R.A.P.™) breather! It senses moisture and begins working faster and lasts longer than desiccant breathers. This is an entirely new technology that provides better protection for your oil or hydraulic fluid.

T.R.A.P.™ Brochure
Photos and functional details

T.R.A.P. specs

T.R.A.P.™ Application Success Story – Hydraulics & Pneumatics magazine, July 2007
A reader favorite, "Fluid Power on Vacation" feature reviews a successful T.R.A.P. breather application on one of the floats at an annual Tournament of Roses Parade.

Deliquescent Breathers: A New Method of Controlling Water Ingression
Article published in Machinery Lubrication magazine, Nov/Dec 2006

White Paper
“How to Prevent Water Contamination Problems” -- Technical discussion of the patented technology behind the T.R.A.P.™ breather, researched and co-authored by two of the industry’s most noted engineers, Bill Needelman and Dave Webb.

Application Info
Questions and answers about T.R.A.P.™

Set a T.R.A.P.™ for Water & Dirt Advertisement
As seen in trade publications: Hydraulics & Pneumatics, Machinery Lubrication, Practicing Oil Analysis, and Reliable Plant

Where to Buy
Find the authorized Donaldson distributor nearest you

T.R.A.P.™ Breather
Call us for details: 800-846-1846

Browse the catalog
View hydraulic filter accessory products in our catalog.