Description
The mechanical retrieval tool is designed to allow pressure balancing through the hollow
or solid plug. When the plug is unfastened from its seat in the access fitting, pipe pressure
starts to flow into the retriever and gradually fills it until the pressure in the tool is identical
to the pipe pressure. Dimensions on the tool internals and sealing surfaces ensure that the
pressure is fully balanced. As a result, the tool moves freely under high pressure
conditions, while users can retrieve and install devices in the access fitting. The telescopic
operation refers to the expanding (out) and collapsing (in) the tool.
WARNING
Risk to Personnel and Equipment: If particles, dirt, or wax are present, the pressure
balance function described above may not provide satisfactory pressure balance in the
mechanical retrieval tool, and the pressure difference can force the mechanical tool to
expand uncontrolled, potentially causing harm to the operators. Therefore, apply
pressure above pipeline pressure to the tool by an external pump.
User Manual Technical description
ROX000295904 June 2020
www.Emerson.com/Roxar 11
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