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Watchdog Extreme Humidity Desiccant Breathers

In environments with extreme humidity, the lubricants and other fluids stored in various equipment need desiccant breathers to remove water vapor and solid particles. However, small temperature variants can draw in humid air and unnecessarily reduce the life of the breather. The Watchdog® Extreme Humidity Breathers incorporate two check valves. One valve controls airflow into the protected equipment, and the other controls airflow out. Together, they allow air to flow through the breather only when necessary, prolonging the life of the desiccant.

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Feature

Reusable Top Cap

The top cap allows for the economic replacement of the desiccant cartridge. When maximum adsorption is reached, the silica gel turns from orange to dark green, indicating replacement is needed. The silica gel used is chemically inert, non-corrosive, and does not contain cobalt chloride, a heavy metal. The color-changing dye used is environmentally safe and meets all health and safety requirements.

Additional Features

Water Vapor Adsorbent
The silica gel used in the Watchdog Extreme Humidity Breathers adsorbs up to 40% of its own weight.
Durable Construction
Watchdog Extreme Humidity Breathers are manufactured from rugged ABS plastic and impact modified acrylic.
Easy Connection
Models are available with 1" slip fit connection which mates with the standard Watchdog Desiccant Breather Adapters or with a 2" NPT male connection.

Other Specs

Model Description Connection Diameter Height Air Flow Water Capacity Check Valve Capacity
39110 Extreme Humidity 1/2" Female NPT 3.25 in 6.25 in 10 CFM .2 lb .1 psi in / .1 psi out
39111 Extreme Humidity 1" Male Friction Fit 5 in 5 in 20 CFM .6 lb .1 psi in / 2.0 psi out
39112 Extreme Humidity 1" Male Friction Fit 5 in 8 in 20 CFM 1.4 lb .1 psi in / 2.0 psi out
39113 Extreme Humidity 2" Male NPT 5 in 5 in 20 CFM .6 lb .1 psi in / 2.0 psi out
39114 Extreme Humidity 2" Male NPT 5 in 8 in 20 CFM 1.4 lb .1 psi in / 2.0 psi out
39135 Extreme Humidity 1" NPT Male 5 in 7 in 20 CFM .6 lb .1 psi in / 2.0 psi out
39136 Extreme Humidity 1" NPT Male 5 in 10 in 20 CFM 1.4 lb .1 psi in / 2.0 psi out
39141 Extreme Humidity 1/2" Female NPT 3.25 in 5.25 in 20 CFM .16 lb .1 psi in / .1 psi out
39144 Extreme Humidity 1" Male Friction Fit 5 in 7 in 20 CFM .6 lb .1 psi in / .1 psi out
39145 Extreme Humidity 1" Male Friction Fit 5 in 7 in 20 CFM 1.4 lb .1 psi in / .1 psi out
39146 Extreme Humidity 1" NPT Male 5 in 7 in 20 CFM .6 lb .1 psi in / .1 psi out
39147 Extreme Humidity 1" NPT Male 5 in 10 in 20 CFM 1.4 lb .1 psi in / .1 psi out
39148 Extreme Humidity 2" Male NPT 5 in 7 in 20 CFM .6 lb .1 psi in / .1 psi out
39149 Extreme Humidity 2" Male NPT 5 in 10 in 20 CFM 1.4 lb .1 psi in / .1 psi out

Desiccant Breathers