Vapor Guard Single Length 1"x 1" NPT w/DCE-4

Vapor Guard

An air breather is used to vent the enclosed air space on the Drive End and Non-Drive End bearings on a Boiler Feed Pump. Increasing heat and thermal expansion, cause inside oil vapors to migrate out through the air breather and into the work place. The oil vapors condense back into free oil inside the air breather forming droplets of oil that drip down from the air filter. Any loss of lubricating oil is a maintenance issue, a safety issue, an environmental issue, and an ongoing house keeping issue.

Solving the problem

• The oil saturated air breather is removed from the vent port on the bearing housing.
• An Vapor Guard is turned directly into the female vent port.
• A new air filter is then turned into the top port of the Vapor Guard.
• The migrating vapors continue to condense back into oil, but now they are contained inside the Vapor Guard.
• The air, purged of oil mist by the Vapor Guard, can now exit through the vent port without contaminating the air filter.
• The oil mist that condensed out inside the Vapor Guard is uncontaminated and is returned to the bearing housing to continue lubricating the bearing.

How it works

• The cut-away on the right shows the construction of anVapor Guard.
• A central diffuser post is located inside a sealed aluminum containment chamber.
• Migrating vapors are dispersed by the diffuser post, inside the containment chamber and condense back into liquid oil. The condensed oil builds and runs down to the bottom of the containment chamber where it collects as uncontaminated lubricating oil.
• The condensate at the bottom of the containment chamber is continuously being channeled back into the bearing housing through bleed back holes located at the bottom of the diffuser post.
• The complete diffuser post assembly can be easily removed from the Vapor Guard, inspected, cleaned and reinstalled for continued vapor control.
• Oil contained within the Vapor Guard is oil that did not contaminate the air breather or the workplace around it.