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RL-4F
The RL-4F is a legacy Baker Hughes product with usage dating back to the early 2000s. It is a family of connectors with a flush OD spanning both surface and conductor casing sizes, with available sizes ranging from 24" to 36" OD. The RL-4F has a 4-start thread that provides make-up with only 1/4 to 1/2 turn.
RL-4F connectors greatly reduce rig time to run conductor and casing strings by providing quick stabbing and make-up. It is designed with a flush OD for operations requiring special drift requirements.
The RL-4F offers a dual seal version utilizing elastomer seals to isolate the threads for corrosion prevention to extend fatigue life.
RL-4F connectors feature self-locking 4-start threads, which provide make-up with only 1/4 to 1/2 turn of the suspended joint.
The RL-4F connector is available in 24-36" sizes and is available with 4 installable secondary anti-rotation devices. The anti-rotation lock is set by a portable, handheld tool. Each anti-rotation device provides up to 48 kip-ft of resistive torque upon installation.
Hands-free, fully pre-installed anti-rotation that removes interaction with rig personnel is also available for over 100 kip-ft of system anti-rotation resistance.