The Rebco ROTRNS Soft Set Bomb Instrument Hanger is fundamentally different from the instrument hangers described above. While the ROTFSB, ROH, XOH, and their counterparts all require jarring to set the lock mandrel within the nipple profile, the ROTRNS is a "soft set" hanger, meaning it locks itself within the ROTR or ROTRN Landing Nipple profile through controlled mechanical or hydraulic running tool engagement, without any jarring at all. This jar-free setting characteristic is the defining advantage of the ROTRNS: sensitive electronic or mechanical recording instruments that cannot tolerate impact shock can be deployed safely and reliably without any risk of damage from set-down jarring.

The ROTRNS requires a dedicated soft-release running tool, either the ROTHR Hydraulic Soft Release Running Tool or the ROTMR Mechanical Soft Release Running Tool, with the choice between hydraulic and mechanical left to the operator based on well conditions and operational preference. Retrieval is accomplished using the ROTGR Pulling Tool with a matched Pulling Prong specific to the nominal size. The ROTRNS Hanger Sub lower connection uses a ¾"–16 Box Thread (Amerada) as standard, with 15/16"–10 available on request.

Available in nominal sizes 2⅜" through 4½", covering seal bore sizes from 1.875" to 3.813". All assemblies comply with NACE MR-01-75 for sour service. Non-standard sizes and materials available on request.

How to Order: Specify nominal size and seal bore size. Specify box thread connection, ¾"–16 (Amerada) standard; 15/16"–10 (Sucker Rod) available on request. Order ROTHR or ROTMR Running Tool and ROTGR Pulling Tool with Pulling Prong as accessories, each sized to the hanger's nominal size.