LUFKIN THB API Pump
LUFKIN Don-Nan
Heavy-walled, stationary barrel, bottom hold-down pump recognized by API as a standard design. Often used in shallow wells that produce more fluid than an insert rod pump can accommodate, but not enough to justify an ESP.
Key Features/Specs:
- Working barrel functions as a section of the tubing string, enabling greater fluid displacement than insert pumps
- Independent hold-down piece typically inserted before field delivery
- Traveling assembly installed on sucker rod string end
- Retrieval mechanism on bottom end for hold-down assembly access during valve repairs
- Two seating options: cup types (high temperatures) or mechanical types (simplified maintenance)
- Mechanical hold-down needs repair only after major damage; cups replaced on each unsetting
Barrel Type
Hold-Down Type
Sand Tolerance
API Designation
Pressure Rating (PSI)
Heavy-walled, stationary (Tubing Pump)
Bottom
option-1