Watson McDaniel Ejectors perform a variety of functions
depending upon the application and motive fluid (steam
or water) used. See performance charts on the following
pages. Applications include: exhausting, agitating, aerating,
circulating, pumping and mixing.
***Model EJECT can be used
with Steam or Water
as the Motive Inlet
• No moving parts
• Can be used with water or steam pressure
• Submersible
• Available in cast iron or bronze
Using water, steam or air pressure as the motive force,
ejectors operate on the principle that a high velocity flow
through a nozzle will create a pressure drop in the area
around the nozzle discharge. The resulting vacuum will
induce flow into the secondary inlet of the ejector.
Installation and Maintenance
It is always desirable to keep the Ejector as close to the actual liquid
being pumped as possible. The maximum height the liquid can
be pumped depends upon the pressure of the “motive” liquid or
steam available. Please refer to the capacity graphs for maximum
flow rates and maximum achievable heads.
The maximum height that water or any liquid with a specific gravity
of 1 can be lifted is 25 feet. Increases in the temperature of the liquid
being lifted will cause this maximum height to decrease. Pumping
liquids in excess of 130°F is not recommended. Please consult
factory with any specific application.
Ejectors shall be constructed from bronze or cast iron.
Units shall be capable of using steam, water or air as
a motive force.