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IMMERSION
PROOF BREATHERS

Immersion Proof Breathers, also called protective vents, are “free breathers” that permit air pressure equalization, but keep out liquid water

IMMERSION PROOF BREATHERS CHARACTERISTICS & APPLICATIONS

Membrane keyboards and similar pressure sensitive equipment are often required to operate under adverse environmental conditions, one of which might be immersion under water. This has resulted in a need for a breathing device that permits air pressure equalization, but protects the equipment from liquid water intrusion.

AGM offers a wide range of Immersion Proof Breathers designed to meet these requirements for various applications.

Immersion protection can be provided for liquid water depths of up to 1 meter for as long as 24 hours. Over shorter periods, some Immersion Proof Breathers can withstand water pressure differentials up to 15 psig. Typical operating temperatures are -40°F to 257°F.

Breather flow rates vary from 150 cc per minute to 5000 cc per minute at 1 psig differential.

Solvent and oil resistant breathers are available.

TYPICAL APPLICATIONS INCLUDE:

  • Computer keyboards
  • Meteorological instruments
  • IP enclosures
  • Gearboxes and transmissions
  • Hand held terminals
  • Battery housings
  • Azimuth sealed devices
  • Equipment needing protection from hose down requirements.

IMMERSION PROOF BREATHERS F.A.Q.

DO IMMERSION PROOF BREATHERS KEEP OUT WATER VAPOR?

No. Immersion Proof Breathers block the passage of liquid water but do not stop water vapor and for more information on how these breathers work see characteristics and applications.

HOW LONG CAN THE BREATHER BE SUBMERGED?

That depends on the rating of the specific breather. Generally, the submersion time is a minimum of one hour.

HOW DEEP CAN THE BREATHERS BE SUBMERGED?

That depends on the rating of the specific breather. However, there are breathers that are rated to a depth of 1 meter.

DO IMMERSION PROOF BREATHERS COME IN DIFFERENT SIZES?

Yes. The smallest breathers that we currently offer are the mini-immersion breathers. Please contact AGM to ask about custom sizes.

WHAT KIND OF FLOW RATE CAN I EXPECT WITH A STANDARD BREATHER?

This depends on the size and type of breather. They generally have low flow rates (a few cc to a few hundred cc per minute).

DO THEY OPEN AND CLOSE AUTOMATICALLY?

No -- These breathers are also referred to as “free breathers”, as they are always open.

AGM Container Controls, Inc.
3526 E. Fort Lowell Rd.
Tucson, AZ 85716
520.881.2130
agmwebsales@agmcontainer.com

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