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The Farr Plunger will increase pump life and cut well pulling cost drastically while reducing plunger, barrel wear and preventing plungers from sticking.
All of this can be accomplished simply by changing the pump design to a Farr Plunger. The cost is just a few hundred dollars more, but the savings are in the thousands of dollars.
The Farr Plunger
The connector, which creates the problems in the conventional plunger, has been moved from the top of the plunger to the bottom of the plunger in the Farr design. This simple change eliminates the gap, wedge and the funnel which created the problems for the conventional plunger. Also, the angle at the top of the plunger has been reversed to force sand inward as opposed to outward in the conventional design.
Essentially, we have eliminated the funnel, wedge and moved the 60 thousands gap to the bottom of the plunger. Now, the top of the plunger has only a 2 or 3 thousands clearance between the plunger and pump barrel as opposed to the 60 thousands in the conventional design. The likelihood of sand getting between the plunger and pump barrel is slim to none. The plunger now acts like a scraper, cleaning off the pump barrel wall and throwing sand inward as opposed to outward and acting as a giant wedge. The Farr plunger can operate on POC's and timers.
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