New Uni-Flow Plunger is unveiled for by-pass plunger lift. It's announced to "deliver benefits of a ball and Sleeve plunger in a unique one-piece flow-thru design." Uni-Flow contains the ball in a sealed cage to prevent lost.and damaged equipment plus wireline costs associated with ball and sleeve plungers. Unlike two-piece plungers, the new design operates in normal wellhead configuration. This eliminates the need for a ball stopper or shift rod in the lubricator. Uni-Flow is also compatible with most bottomhole bumper springs.
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