| Michell - Monitoring Pipeline Drying |
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Category: Water Date Added: 04/07/2010 |
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Best Practices – Monitoring Pipeline Drying
A practical approach to ensure a dry pipeline or process pressure vessel after hydrotesting.
By Jack Herring
Michell Instruments, Inc.
What issues impact pipeline drying after hydrostatic testing?
Process Pipelines (and chemical vessels) which operate at elevated pressures need to be tested for leaks and potential weakness at the time they are assembled and
sometimes, periodically during usage to satisfy industrial safety requirements. There are a number of methods of conducting this pressure test, with the most common
method is to seal the pipeline or vessel and pressurize with liquid water. The hydrostatic testing process is used because water or other liquids are not compressible and
thus if a weak spot in the pipe were to rupture under the pressure of the test, the fluid would not cause as much damage as an escaping compressed gas.
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pdf/michell/MW4PipelineDrying.pdf
| Cermet II - Reliable On-Line Dew-Point Measurement |
| Easidew Portable |
| Easidew Sampler |
| MDM300 High-speed dew-point hygrometer |
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