Pump drive head with leak-free stuffing box, centrifugal...

Details Pump drive head with leak-free stuffing box, centrifugal... Pump drive head with leak-free stuffing box, centrifugal...

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 47/02 (2006.01) E21B 43/12 (2006.01) F04B 9/00 (2006.01) F04B 53/00 (2006.01)

Patent

CA 2311036

A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for said stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.

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