|
Mark V HydroCouple End Connectors are diver-installed over the end of bare pipe to provide a structural connection point. The connectors can be installed on a cut pipe end that has had concrete weight coating and any other coating, such as somastic and coal tar enamel, removed. When actuated, HydroCouple connectors structurally attach to and seal against the pipe. They are used to permanently connect high-pressure pipelines, flowlines, and risers for both shallow-water pipeline repair and new construction projects. |
|
.jpg)
Mark V HydroCouple
|
HydroCouple connectors attach to the pipeline, flowline, or riser using wedge-shaped slip segments, or collet grips, positioned radially inside the body. The collet grips are contained between the pipe OD and an outer wedge-shaped bowl, causing them to be self-energizing; the higher the tension or compression force, the tighter they grip the pipeline. For most applications, HydroCouple connectors utilize dual-acting collet grips to support both tension loads (thrust effects of internal pressure and externally applied tension loads) and compression loads resulting from pipeline thermal expansion or other causes.
After a HydroCouple connector has been stabbed onto the pipeline end, the diver actuates both the collet grips and the elastomer packer seals by tightening the packing flange and then tests the seal.
HydroCouple connectors use a sealing system consisting of two stacks of elastomer packers. When axially compressed, the elastomer packers flow radially inward against the pipe OD and outwardly against the connector body. The elastomer seals are backed up by metal guard rings that prevent seal extrusion. A pressure-test feature is provided for verifying the seal after setting and installation. This is accomplished by pressuring the annulus space between the two packing stacks.
When pipeline operating temperature is unusually high compared to the water temperature, it may be necessary to provide the HydroCouple connector with our temperature-compensated sealing system. This patented mechanism regulates the pressure fluctuations in the packers to a range that will neither damage the pipe due to excessive pressure or result in a seal failure due to loss of sealing pressure. In most cases, however, the connector and pipe are sufficiently elastic to self-compensate for seal expansion and contraction due to temperature fluctuations.
HydroCouple End Connectors are available in sizes and pressure ratings ranging from 3 inch/API 10,000 psi to 48-inch/ANSI 600 Class. Almost any variation of pressure rating as well as hydraulic or mechanical actuation is available, and the connectors are available in configurations with other connectors and fittings. HydroCouples are available from stock for pipe sizes from 4 to 24 inches with ANSI 900 rating, both with and without telescopic adjustment.
Oil States Pipeline End Connectors meet the requirements of API 6H and are designed in accordance with ASME Pressure Vessel Code, Section VIII, Division 2, unless otherwise specified. Anodes for cathodic protection are designed for a 20-year service life in accordance with DNV Rules for Submarine Pipeline Systems. HydroTech End Connectors can also be supplied to meet the requirements of other recognized design codes, standard 5750.
Please provide the following information on any purchase order or request for quotation:
• Pipe wall thickness or bore
• With or without telescoping adjustment |
Oil States Industries, Inc.
Oil States International, Inc.