High-Pressure Thermocouple & RTD Assemblies — Fittings and Process Connections
High-pressure thermocouple and RTD assemblies for subsea, reactor, wellhead, and severe-duty measurement points.
Product Overview
High-Pressure Thermocouple & RTD Assemblies for Severe Process Boundaries
High-pressure temperature assemblies are specified around the pressure boundary first, then the sensing element, process connection, seal design, sheath material, and documentation package required by the installation.
High-Pressure Sensor Boundary Design
These assemblies are used where a sensor failure can become a process-containment problem. The visual highlights the heavier process interface, protected transition, and field-service geometry common to wellhead, reactor, and severe-duty installations.
Severe-Duty Process Assembly
Use this geometry when the sensor interface is part of the pressure boundary in subsea, wellhead, reactor, or other severe-duty service.
Pressure Boundary and Seal Considerations
Critical Seal Selection
High-pressure temperature assemblies are reviewed around the fitting style, seal approach, insertion geometry, process media, operating pressure, operating temperature, and the documentation required by the installation. The pressure connection may be flanged, threaded, gland-style, or otherwise engineered around the application.
Material and Process Compatibility
Sheath Material
Sheath and fitting materials are selected around media compatibility, pressure, temperature, and customer requirements. Titanium can be reviewed as an option where compatible with the application.
Hardness Limit
Material limits, hardness requirements, and any sour-service documentation should be confirmed during technical review.
Certification
Material test reports and traceability documentation can be specified when required by the job.
Application Review
Pressure, media, process connection, sheath material, and installation geometry should be reviewed together before quoting.
Subsea and Severe-Duty Build Notes
Severe-Duty Applications
High-pressure assemblies may be used around wellhead, reactor, manifold, flowline, and other severe-duty process points where the fitting and sensor construction have to be reviewed as part of the pressure boundary.
Documentation and Testing
Severe-duty builds are typically reviewed around pressure rating, process compatibility, material traceability, hydrostatic test documentation, and the installation method required by the pressure boundary.
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