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Watchdog Guardian Desiccant Breather

The Watchdog Guardian Desiccant Breather has a modular platform that allows for configuration of the breather for nearly any application and life expectancy. This makes better use of inventory dollars and ensures every maintenance dollar is used wisely. Incoming air is directed through the filters and desiccant, but all exhaust air is expelled directly out to atmosphere, which elongates the life of the desiccant and breather.

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Feature

Isolation Check Valve

The Isolation Check Valve isolates the silica gel from exhaust air to lengthen the service life of the desiccant while also protecting it from harmful vapors and splashing fluids.

Feature

Visual Indication

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.

Feature

Check Valves

The top check valves are on the inlet, and the bottom check valves are on the outlet. When the breather is in static conditions (no air movement) the check valves prevent ambient air from coming into contact with the desiccant, thus extending breather life.

Additional Features

Modular Design
Modular Design allows for more than one cartridge to be used in a single installation, extending service life and reducing costs and maintenance intervals.
Washdown Cap
An optional washdown cap provides barrier where frequent washdowns occur. This protects any direct spray from opening check valves on the top cap.
Water Vapor Adsorbent
The silica gel used in the Watchdog Extreme Humidity Breathers adsorbs up to 40% of its own weight.
Durable Construction
Manufactured with Tritan® that provides impact, temperature, and chemical resistance and is also BPA free.

Other Specs

Model Description Height Diameter Connection Silica Gel Volume Water Capacity
39170 Guardian Breather 9 in 5.125 in 1" NPT Female 1.5 lb 9.2 fluid oz
39171 Guardian Breather 9 in 5.125 in 2" NPT Female 1.5 lb 9.2 fluid oz
39172 Guardian Breather 9 in 5.125 in 1" BSP Female 1.5 lb 9.2 fluid oz
39173 Guardian Breather 12 in 5.125 in 1" NPT Female 2.8 lb 17.2 fluid oz
39174 Guardian Breather 12 in 5.125 in 2" NPT Female 2.8 lb 17.2 fluid oz
39175 Guardian Breather 12 in 5.125 in 1" BSP Female 2.8 lb 17.2 fluid oz
39176 Guardian Breather 16 in 5.125 in 1" NPT Female 4.5 lb 27.6 fluid oz
39177 Guardian Breather 16 in 5.125 in 2" NPT Female 4.5 lb 27.6 fluid oz
39178 Guardian Breather 16 in 5.125 in 1" BSP Female 4.5 lb 27.6 fluid oz

Desiccant Breathers