Description Drum Desiccant Breathers, also known as Drum Vent Dryers, prevent contamination of chemical products (powders, liquids and semi-solids) in 55-gallon drums during storage and use. AGM’s Drum Vent Dryers are quick and easy to install. The units are reusable — saturated color change silica gel desiccant is easily replaced. Drum Desiccant Breathers can also be filled with orange silica gel (acceptable for use in the European Union), molecular sieve, activated alumina and activated carbon. Selection Guide Std. Duty Industrial Heavy Duty Industrial Std. Duty Ultra Clean Heavy Duty Ultra Clean Part No. BL/D7870/01 BL/D7870/02 BL/D7548/01 BL/D7548/02 Desiccant Charge 1.32 lbs. 2.65 lbs. 1.32 lbs. 2.65 lbs. Adsorption Capacity 3.17 oz. H2O 6.35 oz. H2O 2.12 oz. H2O 4.23 oz. H2O Air Drying Capacity 211.9 ft3 423.8 ft3 141.3 ft3 282.5 ft3 Maximum Flow Rate 1.06 ft3/minute at 50 microns nominal 1.06 ft3/minute at 0.5 microns nominal Operating Temperature -4°F to 131°F (-20°C to 55°C) -40°F to 176°F (-40°C to 80°C) Housing Materials UV Resistant Polycarbonate & PVC UV Resistant Polycarbonate Mounting Thread 3/4" NPSM (Includes 3/4-14 NPT adapter to connect Drum Desiccant Breather to drum) Also fits 2" NPT adapter. NOTE: Standard Duty versions have a nominal filtration rating of 25 microns while the Ultra Clean versions have a nominal filtration rating of 0.5 microns, suitable to protect against atmospheric particulate contaminants.
