Inside blowout preventer
An inside blowout preventer including a valve seat pocket and a replaceable valve seat, the valve seat having a lip to bear the longitudinal back pressure in the presence of blowout type pressures from below without causing outward pressure of the pocket seat which cause distortions of the pin end i...
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| Format: | Patent |
| Sprache: | eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | An inside blowout preventer including a valve seat pocket and a replaceable valve seat, the valve seat having a lip to bear the longitudinal back pressure in the presence of blowout type pressures from below without causing outward pressure of the pocket seat which cause distortions of the pin end in which the pocket is located. |
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