Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual

Section 2: Mechanical installation

3-9000-771Rev A

May 2012

 

 

 

2.4Field hydrostatic pressure testing

The Daniel 3818 LNG Liquid Ultrasonic Flow Meter can be hydro-tested without any special preparations. The transducers are not exposed to the process pressure and can remain installed in the meter.

The liquid ultrasonic meter pressure containing parts include but are not limited to the transducer housings. These pressure containing parts are pressure tested while attached to the meter body as a completed ultrasonic meter assembly.

The hydrostatic test is verification of the pressure containing capability of the liquid ultrasonic meter pressure containing parts and the seals that seal them. Perform a visual inspection of the meter and visually inspect the meter and leak test the flanges.

LEAKAGE OR PRESSURE CONTAINING PARTS FAILURE

Use precautions to eliminate hazards to personnel in the event of leakage or failure of the liquid ultrasonic meter pressure containing parts or failure of the test equipment and to prevent over-pressurization during the test procedure.

Failure to do so may result in injury to personnel or cause damage to the equipment.

Field hydrostatic pressure testing

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