Tank | Storage vessel used for the collection of process materials. |
Tank farm | Area within a process facility where several storage tanks reside. |
Tee | Three-way fitting used to make branch connections on a run of pipe. |
Temperature alarm | Instrument designed to signal dramatic changes in internal temperature. |
Temperature controller | A control valve that regulates internal temperature of a pipe or vessel after receiving internal temperature of a pipe or vessel after receiving |
Temperature control valve | Valve using fluctuations in temperature to make adjustments in commodity flow. |
Temperature element | Thermocouple that allows portable test equipment to be inserted to measure the temperature of the commodity within a pipe or vessel. |
Temperature indicator | Instrument that indicates temperature of the commodity in a pipe or vessel (thermometer). |
Temperature recorder | A recording instrument that makes a permanent record of temperature within a pipe or vessel. |
Temperature recording controller | Instrument that provides simultaneous recording and regulation of the temperature within a pipe or vessel by sending a signal to a control valve and recorder. |
Temperature well (Thermo well) | Inserted into a coupling to protect the temperature instrument bulb. |
Thermal expansion | Growth of pipe due to the application of heat. |
Threaded end | Any piping component having internal or external threads. |
Threads, external | Pipe component having screw threads cut into the exterior surface (male threads). |
Threads, internal | Pipe component having screw threads cut into the interior surface (female threads). |
Tower | Vertical vessel or column. |
Tower, cooling | Equipment that dissipates heat gain in cooling water by evaporating specific amounts of water that has been aerated. |
Transmitter | Instrument that sends signals to indicating, controlling, or recording devices. |
Trapeze | Pipe hanger consisting of two vertical rods connected with a horizontal support member. |
Tray | Flat metal plates spaced approximately 30" apart inside a vertical vessel that aid in the fractionation of crude petroleum into by products. |
Tube bundle | Removable section of an exchanger containing internal tubes. |
Tube sheet | Vertical plate separating the shell side from the channel end of an exchanger. |
Turbulence | Uneven flow produced by directional changes or obstructions within the pipe. |
A three-piece fitting placed within a screwed or socket-weld configuration that permits quick disassembly of the configuration. | |
Utility | One of many plant services required for the efficient operation of the facility, for example, air, water, steam, sewer, and flares. |
Utility air | Compressed air used to drive pneumatic tools, clean equipment, and perform other maintenance services. |
Valve | Device used to control the flow of a commodity through a pipe. |
Vapor | The gaseous state of any substance that is liquid or solid under ordinary circumstances. |
Vapor lock | Trapped air or vapor in a pipe that prevents the flow of a commodity through the pipe. |
Vendor | A third-party supplier of parts, equipment, or other components of the piping facility. |
Vendor drawing | A drawing or rendering that depicts descriptive information pertaining to the equipment or piping component that a supplier or manufacturer delivers to the piping facility. |
Vertical heater | Device used to raise the temperature of a commodity to the point at which it can be used in a process system. |
Vessel | Generic term used to describe any closed container housing liquid, vapor, or gaseous commodity. |
Wedge | Sealing component of a gate valve. |
Weir | Dam-like plate welded on a tray that allows a fractionated by-product to collect and be extracted by a nozzle. |
Welding ring | See back-up ring. |
Weld neck flange | Flange with a tapered neck for butt descriptive welding to other bevel-end piping components. |
Friday, December 11, 2009
Oil and Gas: Terms & Glossary (9)
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Oil and Gas
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