| API Tubing Pumps (TH) | |
| The Harbison-Fischer Tubing Pump is the most rugged of the four API pumps due to its heavy wall construction. It should be chosen when greater production is needed than can be delivered by an insert pump. The extensions on each end of the barrel provide a stroke-through arrangement. The stroke length and pump spacing can be adjusted so that the plunger strokes out of the barrel into the extensions at the top of the upstroke and bottom of the downstroke. This spacing allows the plunger to be washed clean in the extensions on the upstroke and downstroke. Although it can produce the greatest quantity
of fluid for a particular tubing size, only the plunger assembly and
standing valve can be retrieved with the sucker rods for servicing.
The tubing must be pulled to service the pump barrel. |
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