AFLOWT MFT, Руководство по установке

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3. MOUNTING
3.1. General Requirements
When mounting the flowmeter on site, a free pipeline section
should be provided. It is used to mount the flow sensor; straight pipe
runs of appropriate length upstream and downstream the flow sensor.
Overall dimensions and weight of the flowmeter are given in the
Operation Manual, Part I, Appendix A.
CAUTION! You MUST choose a mounting location with the
conditions meeting the requirements specified in the user manual.
3.2. Mounting the flowmeter in the pipeline
3.2.1. Mounting considerations:
- The flowmeter may be mounted into a pipeline installed horizontally,
vertically, or obliquely; special filters or dirt traps are not needed
- To prevent air collection at the mounting location, the flowmeter should
not be placed at the upper point of the pipeline or in the open-ended
pipeline; the best place to mount the flowmeter (if applicable) is the
lower or the uprising pipeline run (see Fig.1)
- Liquid pressure in the pipeline must not be of values that may facilitate
gas release
- The flowmeter should be mounted in the part of a pipeline where liquid
turbulence and pulsations are minimal.
Fig.1. Recommended MFT locations
- Straight pipe runs with nominal diameter (DN) equal to nominal
diameter of the flowmeter and length of no less than specified in table 1
should be provided upstream and downstream the flowmeter. These
runs must not include devices or components that may disturb flow
structure
- When the flowmeter is operated, PFC inner channel should be fully filled
with liquid