Air Sentry Extreme Humidity Dessicant Breather 5-1/4 inch (W) x 7 inch (H)

In any reservoir containing fluids or semi-solids, air is breathed in and out as the fluid level changes or as thermal expansion and contraction occurs. Fluid contamination is the primary cause of component wear and lubricant failure in industrial equipment.

In certain extreme operating environments such as a paper mill, a steam cleaning room, etc., the humidity level far exceeds that which is experienced in normal industrial applications. In these situations, lubricants and other fluids stored in tanks and reservoirs need the protection of a desiccant breather even more. However, small temperature variations draw in the humid air and unnecessarily reduce the life of the breather. The Air Sentry X-Series breathers incorporate two check valves, one to control airflow into the protected reservoir, and one to control airflow out. These valves establish thresholds of vacuum (air in) and pressure (air out). This prolongs the life of the desiccant by allowing the air to flow through the breather only when needed to protect the integrity of the tank.

Air Sentry breathers replace the standard breather cap or vent tube on a tank of reservoir. They are easy to install using one of several adapters designed for different applications.

When the fluid in the system is lowered, or pressure changes occur, air is drawn in through openings under the breather cap. First, air passes through a fine, 2 micron solid particle filter. The air then passes through a diffuser to ensure maximum effectiveness within the silica gel chamber.

Next, water vapor is removed as the air travels through a bed of silica gel - the highest capacity adsorbent available. After being dried, the air passes through a second 2 micron solid particle filter and enters the reservoir clean and dry.

Air Sentry breathers use a three-stage filtration design to ensure optimum protection by removing water vapor and solid contaminants before they enter the fluid system.

• Height: 5.0 in / 12.8 cm
• Diameter: 5.0 in / 12.8 cm
• Weight: 3.3 lb / 1.5 kg
• Maximum H2O capacity: 0.5 lb / 0.25 ltr
• Nominal Air Flow Rate: 35 CMF (991 L/min) Equivalent of 262 gpm of fluid volume change
• Solid Contaminant Filtration Level: 2 micron, 100% efficiency @ 35 CFM air flow
• Operating Temperature Range: -20° to 200°F / -28° to 93°C
• Silica Gel Adsorption: Up to 40% of its weight of water
• Silica Gel Lowest Operational Dew Point: -100°F / -73°C
• Chemical Resistance: Resistant to alkalis, hydrocarbons, non-oxidizing acids, salt water and mineral or synthetic oils

• Check Valves - The Air Sentry X-Series breathers incorporate two check valves, one to control airflow into the protected reservoir, and one to control airflow out.
• Reusable Top Cap - Includes a reusable top cap which allows the economic replacement of the desiccant cartridge only.
• Bi-directional Air Flow - Air entering is cleaned and dried. Expelled air partially regenerates the silica gel and "backflushes" the particulate filter to prolong the life of the breather.
• Durable Construction - Air Sentry is manufactured from rugged ABS plastic and impact-modified Plexiglas.
• Water Vapor Adsorbent - The silica gel used in Air Sentry breathers is chemically inert, non-corrosive, and conforms to all regulated toxicity standards in the U.S. and other countries. Microscopic pores allow the silica gel to adsorb up to 40% of its own weight.
• Color Indicator - When maximum adsorption is reached, the silica gel turns from gold to dark green to indicate that replacement of the breather is required.
• Activated Carbon - As air is expelled from the tank, it passes through activated carbon which remove oil vapors, fumes, and odors.
• Safety Sealed - Seals keep moisture from entering the units until they are placed in service. They are easily removed without tools or sharp instruments.