| 摘要 |
Methods and systems are provided for a vessel or pipeline closure. A closure 10 includes a hub 12 fixedly and searingly secured to the vessel, and a cap 30 for threaded engagement with the hub 12. An anchor 22 may be fixedly secured to the hub and a tightening pulling stop 32 and a loosening pulling stop 132 each may be fixedly secured to the cap 30. A connector body 26 may be engaged with the anchor 22, and has a through bore 27 to accommodate a threaded rod 44. A flexible, elongate member 46 may be engaged at one end to the threaded rod 44, and selectively engaged with one of the pulling stops 32 or 132. A threaded collar 28 advances the threaded rod 44 axially, thereby rotating the cap 30 relative to the hub 12.
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