Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual

Section 2: Mechanical installation

3-9000-771Rev A

May 2012

 

 

 

2.6Mounting requirements in Liquefied Natural Gas pipelines

install sufficient insulation over the meter assembly, shrouds and adjoining upstream and downstream piping. The thickness and type of insulation used is to be determined by the customer for the ambient conditions. For accurate flow meter operation the liquefied natural gas fluid flowing within the meter must be liquid without any gas pockets or bubbles. The insulation installed must be adequate to insure bubble free liquid flow is achieved at all flow rates and ambient conditions.

The ambient operating temperature of the Daniel 3818 LNG Liquid Ultrasonic Flow Meter electronics (i.e. Flameproof enclosure and Intrinsically safe base enclosure) is -40oC (-40oF) to

+60o C (+140o F). The 3818 LNG Liquid Ultrasonic Flow meter electronics are remote mounted on a vertical or horizontal two (2) inch pipe which is securely installed and rigid.

Mounting requirements in Liquefied Natural Gas pipelines

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