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