The Rebco ROTW-1 and ROTW-2 are Top No-Go, Non-Flowing Lock Mandrel Sub-Assemblies that cover nominal tubing sizes from 1.660" to 4.50". The assembly's Dogs (locking fingers) resist upward movement, while a No-Go shoulder seat in the upper portion of the seating product prevents downward movement, making this a true Top No-Go lock. The ROTW-2 is used across most of the size range; the ROTW-1 applies to the 1.660" and 4.50" nominal sizes. All ROTW sub-assemblies are available in a variety of materials suitable for downhole conditions.

The No-Go ring OD is machined larger than the seal bore it is designed for, ensuring the lock positively stops at the correct seating point and cannot be pushed through to a lower depth by accident. As with the ROTS, the required Running and Pulling Tools with appropriate Probes depend on the type of accessory attached to the sub-assembly and are specified in the engineering data for each size.

How to Order: Product Code 10. Specify nominal tubing size, seal bore size, lock type (ROTW-1 or ROTW-2 as appropriate), material, service conditions, and the accessory type to be attached to determine the correct running and pulling tool with probe.