Abstract: A device includes a stem hub attached to a fitting body. A rotatable stem is located at least partially within the stem hub. Rotation of the rotatable stem operates a blocking element located in the fitting body. In an embodiment, an upper stem is coupled to a first end portion of the rotatable stem so that rotation of the upper stem rotates the rotatable stem. A metal seal is located on the stem hub. A portion of the upper stem presses the metal seal between the upper stem and the stem hub when the upper stem is moved towards the stem hub. An operating mechanism moves the upper stem towards the stem hub and away from the stem hub. The upper stem is moved by the operating mechanism in a direction normal to the rotational axis of the rotatable stem and the upper stem.

Abstract: A fitting includes a body having at least two portions coupled together to form a body having a passage through the body. The passage allows at least a portion of a conduit to be located at least substantially lengthwise within the body. First and second ports are located on the body and are in fluid communication with the passage. A first seal is located on the passage wall between a first end of the body and the first port. A second seal is located on the passage wall between the first port and the second port. A translatable ring is located on the passage wall between the first and second seals. The ring moves along the passage wall when the first seal is activated so that the second seal is activated. The ring includes an opening proximate the first port to provide access to the conduit from the first port. The first and second seals provide a seal in the passage.

Abstract: A subsea fitting is disclosed. The subsea fitting includes a body. The fitting includes at least two passages through the body. The passages are in fluid communication within the body. A diverter is located in at least one of the passages. The diverter may be movable between an open position and a closed position. In the open position, the diverter allows open flow between two of the passages. In the closed position, the diverter inhibits flow between the two passages.

Abstract: A piggable pipeline system is disclosed. One or more pig launcher/receivers may be coupled to a pipeline. At least one fitting may be coupled to the pipeline. The fitting may include a body and at least two passages through the body. The passages are in fluid communication within the body. A diverter is located in at least one of the passages. The diverter is movable between an open position and a closed position. In the open position, the diverter allows open flow between two of the passages. In the closed position, the diverter inhibits flow between the two passages. The pipeline may allow a pig to be launched from at least one of the pig launcher/receivers and returned through the pipeline to at least one of the pig launcher/receivers.

Abstract: A subsea fitting is disclosed. The subsea fitting includes a body. The fitting includes at least two passages through the body. The passages are in fluid communication within the body. A diverter is located in at least one of the passages. The diverter may be movable between an open position and a closed position. In the open position, the diverter allows open flow between two of the passages. In the closed position, the diverter inhibits flow between the two passages.