Rotational Alignment Sub
(RAS) (V-Packing Seal)
UMS Flowell Rotational Alignment Sub (RAS) is a quick and easy way to orientate your completion. The RAS is used to assist with the orientation of well completion assemblies within a well completion string. A typical example would be the orientation between upper and lower y-tools in dual ESP completions.
The RAS is lockable to left and right hand rotation in 6 degree increments. The RAS has 30 self-meshing clutch teeth that orientate the tubing hanger to the body. The orientation mechanism requires no power tongs to torque the mechanism into the locked position. The RAS uses a bidirectional V-stack seals for redundancy, to provide a leak proof connection between the production tubing and production casing.
The RAS can be supplied in different tubing sizes, materials, and different elastomeric or non-elastomeric seal materials to meet the customer’s requirements. Where height adjustment is also required, the UMS Flowell Tubing Adjustable Union (TAU) should be used.
Features & Benefits
- Available in sizes from 2-3/8” up to 5-1/2”
- Other sizes available on request
- Compact design
- Clutch design allows quick and easy orientation in 6° increments
- Locked to right and left-hand rotation
Specifications
- Low alloy or 13Cr metallurgy
- Viton, Aflas, or HNBR elastomers
- 6500psi MWP limited by elastomers
- Non-elastomeric stacks available for high temperature applications
- Matched tubing tensile and compression ratings
