Hercules HP Flapperball Stuffing Box

The Hercules HP Flapperball stuffing box compensates for slight misalignment of the polished rod.

Render of Hercules Flapperball
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Description

Our patent-pending design replaces the conventional spring-loaded flapper system with a specifically engineered floating ball, which can be easily inspected or replaced on the well. Our threaded Hercules™ HP Flapperball stuffing box weighs in at only 66 lb (threaded) and is designed from the ground up for safety and ease of operation.

  • Easily self-aligned
  • 16-in. overall height
  • Upper 2¼-in. OD packing/lower cone packing
  • Various sizes and pressure ratings available
  • Easy-to-replace packing
  • Center housing doubles as lubrication chamber
  • Offset packing compatible
Specifications

Hercules HP Flapperball Stuffing Box Specifications

Specifications Simple Pac Flapperball (threaded) Flapperball (flanged) 
Working pressure 1,500 psi 1,500, 3,000, 5,000 psi 1,500, 3,000, 5,000 psi
Bottom thread 2⅞-in. EUE male 2⅜, 2⅞, 3½ in. 2⅜, 2⅞, 3½ in.
Bottom connection Male Male or flanged Male or flanged
Weight 60 lb 61 lb 94 lb
Height 16 in. 16 in. 16 in.
Material Forged steel Forged steel Forged steel
Split cone packing – rod sizes 1⅛, 1¼, 1½ in. 1⅛, 1¼, 1½ in. 1⅛, 1¼, 1½ in.

Hercules HP Flapperball Stuffing Box Pieces Required

Pieces required

 Simple Pac

Flapperball (threaded)

Flapperball (flanged)

Top donut packing

4

4

4

Bottom cone packing

N/A

2

2

V-ring packing OD

2¼ in.

2¼ in.

2¼ in.

V-ring stack height

3 in.

3 in.

3 in.

 


Resources

  • Hercules HP Flapperball Stuffing Box Flyer

  • Production Service Hookup Brochure

Render of threaded Hercules HP Flapperball Stuffing Box