Ruixin Energy Equipmnet
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Wireline Lock Mandrel HFH plugs
I. Overview:
The HFH type plugs is sealed at the designated position of the working cylinder by the sealing assembly, so that the pressure under the HFH type plug is sealed, and there is no pressure above the HFH type plug to ensure the safe operation of the wellhead.
II. Common technical parameters:
| Size | Lock cylinder salvage diameter | Balance bar fishing neck | Balance bar fishing tool |
| 1.875＂ | 2＂ | 1.375＂ | 2＂SB |
| 2.313＂ | 2.5＂ | 1.375＂ | 2＂SB |
| 2.813＂ | 3＂ | 1.375＂ | 2＂SB |
| 3.813＂ | 4＂ | 3.125＂ | 4＂SB |
III. Structural characteristics:
HFH plugs is composed of inner salvage neck, nut, retaining ring, elastic retaining ring, outer cylinder, sealing assembly, lock cylinder key, etc.
IV.Matters needing attention:
1. Before going downhole each time, check that the lock cylinder key can shrink freely without jamming, and replace the broken pin.
2. Check the sealing assembly to ensure that the sealing assembly is intact (if damaged, replace it in time).
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