Fuel reaching the gas turbine ignition box must be properly conditioned to meet the required firing temperature, pressure and cleanliness standards. Metered fuel gas is normally required at a steady operating temperature and at a safe margin above dew point. Severe damage may be caused to the turbine if the gas is not ultra clean and dry.
Type | Bi-Directional Conversion |
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Pressure Rating | ANSI Class 150, 300, 600 |
Application Code | API Chapter 4, ASME/ANSI B31.3, ASME Sec. VIII |
Accuracy | 0.02% |
Calibration | Water Draw method |
Base Volume | Min. 10,000 pulse of Flowmeter |
Sphere Velocity | Max. 1.5 m/s |
Material | Carbon Steel |
Internal Coating | Epoxy Coated |
Accessories | 4-Way Valve, Sphere & Removal Tool, Detector Switch, Davit, Pressure & Temperature Instruments, etc. |
Options | Quick Opening Closure, Pressure Safety Valve, Proving Computer |
Others | Other materials and options available |
A tank prover is a volumetric vessel that has a reduced cross section or neck located at both the top and bottom or, in some cases, at the top only. These necks are equipped with gauge glasses and graduated scales. Tank provers may be open to the atmosphere, or they may be closed pressurized vessels. Proving by a tank prover employs the standing start and-stop method (that is, the flow through the meter must come to a complete stop at the beginning and end of each proving run). It is suitable for the periodic calibration of the flowmeters with hydrocarbons. Cylindrical body, cones and necks can be both in carbon steel and stainless steel. Up or bottom loading are available. Upper and lower necks having opposite, transparent windows. It is equipped with thermometers, spirit level, eyebolts and legs. It is also available on wheels, to move easily around the depot.