The perfect solution for high humidity and high dust environments.
In certain extreme operating environments such as paper mills or a steam cleaning rooms, the humidity level far exceeds normal industrial environments. 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 Watchdog® Extreme Humidity Breathers incorporate two check valves, one to control airflow into the protected reservoir, and one to control airflow out. The check valves provide a closed system until airflow is required, extending the service life of the desiccant. Specifically, the intake check valve allows airflow into the breather only when differential pressure between the atmosphere and fluid reservoir exceeds a 0.1 psi threshold, while the exhaust check valve permits air to exit the reservoir when the differential pressure exceeds a 2.0 psi threshold. A 0.1 psi check valve is also available for exhaust. The end result is longer desiccant life by allowing the air to flow through the breather only when needed to protect the integrity of the tank.
Unlike a membrane system, which does not allow internally generated gases and contaminants to exit the system, the Watchdog® Extreme Humidity Breather offers all of the advantages of breathing air in and out of the tank while removing water vapor and solid particles before they contaminate the fluid.
Typical applications include:
Paper Mills
Wash-Down Areas
Steam Cleaning Rooms
Mine Quarries
Description
Water Vapor Adsorbent – The silica used in the Watchdog® Extreme Humidity Breathers adsorb up to 40% of its own weight
Color Indicating – 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.
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® Breather Adapters or with a 2″ male NPT connection.
Models
Model No.
Description
Air Flow
Water Capacity
Dim A
Dim B
Dim C
Check Valve Capacity
39110
Extreme Humidity
10 CFM
.2 lb
6.25 in
N/A
1/2" FNPT
3 psi in / .3 psi out
39111
Extreme Humidity
20 CFM
.6 lb
5 in
1.25 in
1" slip
.3 psi in / 2.1 psi out
39112
Extreme Humidity
20 CFM
1.4 lb
8 in
1.25 in
1" slip
.3 psi in / 2.1 psi out
39113
Extreme Humidity
20 CFM
.6 lb
5 in
1.87 in
2" MNPT
.3 psi in / 2.1 psi out
39114
Extreme Humidity
20 CFM
1.4 lb
8 in
1.87 in
2" MNPT
.3 psi in / 2.1 psi out
Replacement Cartridges
Model No.
Description
Replacement For
39217
Replacement Cartridge
39110
39218
Replacement Cartridge
39111
39219
Replacement Cartridge
39112
39310
Replacement Cartridge
39113
39222
Replacement Cartridge
39114
Specifications
Nominal Air Flow Rate
10 CFM (75 gpm of fluid volume change)
20 CFM (150 gpm of fluid volume change)
Extreme Humidity Desiccant Breathers (EX Series)
Replacement Cartridges
