A passive phase separator separates and traps gases that may be present in a liquid flowing through a system. The phase separator includes an inlet in fluid communication with a first separator chamber and an outlet in fluid communication with a second separator chamber that is disposed annularly about the first separator chamber. Gas introduced into the first separator chamber is pushed downstream through the first separator chamber to a gas storage chamber. Once gas is trapped within the gas storage chamber it remains there for the entire operational life of the phase separator.
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