AE1800 Air Eliminator

Watson McDaniels

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The AE1800 Air Eliminator with Stainless Steel body and all stainless internals is used for the removal of air and other gases from vessels or piping systems without allowing the contained liquid to escape.

Catalog Spec Sheet (pdf)

I&M (pdf)

Condensed I&M (pdf)


• All stainless steel body and internals
• Hardened SS seat (55 Rc) for longer service life
• Repairable units available (AE1800R Series)

How It Works

The valve and seat assembly inside the air eliminator is connected to a stainless steel float. When there is no liquid in the body of the air eliminator, the float will be in the down position, allowing air or other gases in the vessel or piping system to escape. When liquid enters the body, it will lift the float and the valve will be closed off before any liquid can escape.

* PMO based on liquids with specific gravity of 1. Consult factory for PMO for liquids of other specific gravity values.

Installation and Maintenance

The AE1800 should be located at a high point in the system or vessel. The unit must be installed level and upright with flow upward for the float mechanism to operate properly. Isolation valves should be installed for ease of maintenance.

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