WELD ON INSERT VALVE

摘要

Embodiments of systems and methods for installing a single valve assembly into in-service pipelines are presented using conventional hot tap technology. In one embodiment, the single valve assembly may comprise a removable cartridge assembly that comprises a wedge assembly that is rotated from an open position to a closed position and movable from a first unexpanded position to a second compressed position that sealingly engages one or more sealing elements to the valve body or housing to prevent fluid flow in the pipeline. The cartridge assembly is configured to be removed from the valve body for repair, maintenance, or replacement without additional line stops or interruptions to the in-service pipeline.

主权项

1. A valve for insertion into a pipeline, comprising:
a wedge comprising a bore; a first sealing slip coupled to a first side of the wedge; and a second sealing slip coupled to a second side of the wedge, wherein the valve comprises a first position and a second position, wherein the first and second sealing slips move along the wedge sides between the first and second position.