Merlin connectors combine superior static strength and fatigue life with fast, non-rotational make-up and an extremely slim profile; a Merlin connector typically has a cross-sectional wall thickness of only 1.5 inches. These connectors have been used in sizes up to 60 inches OD and for applications including open-hole and tieback casing, connectors, structural tubulars, pipeline risers and TLP Tendons. The Merlin S is the slim line version, the Merlin D and HD are derivable models and the Merlin R is for use with riser applications. The Merlin Tension Leg Element (TLE) is also available for extreme axial fatigue conditions. The Merlin connection has a unique non-helical thread design, which incorporates Oil States patented tooth crest relief profile. The connector geometry has been designed to ensure that the teeth can only interlock in the fully made-up position. The connection is assembled in approximately 5 minutes using an Oil States supplied hydraulic clamp and air-operated power pack. After stabbing, the clamp is fitted around the connector, and hydraulic pressure is injected between the pi and box. As the pressure expands the box contracts the pin, the clamp pulls the two components together. When pressure is released, the box "shrinks" onto the pin. The wedging action of the teeth converts radial preload into an extremely high axial preload that maintains connector stiffness and enhances tension fatigue characteristics. The level of preload generated in Merlin is not possible to achieve with an equivalent sized conventional helical threaded connector. Make-up is visually confirmed by inspecting the external abutment faces. Beak-out is achieved by reversing the process. Merlin connectors are reusable, with only visual inspection required. The connector incorporates internal and external abutment faces, which ensure pile fatigue is minimised through the teeth, this enables the connector to have high-in place fatigue performance even after piling. Materials Merlin connectors are typically made from HIHOS, an Oil States developed, high-strength, micro-alloy steel (100,000 psi yield). Alternate material options are available on request. Oil States supplied clamp and air-operated power pack     MERLIN SELECTION  S Standard      1" Standard Duty X52      16 Tooth Design   D Drivable      1" Drivable X52/X56      16 Tooth Design HD Heavy Duty      1.5" Drivable X52/X56      24 Tooth Design R High Pressure Riser      1.5 " High Pressure X80      36 Tooth Design

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