Fluid Components International ST50 - Manual (Page 3)

ST50 MASS FLOW FLUID COMPONENTS INTERNATIONAL LLC
This page is subject to proprietary rights statement on last page 3 Doc. No. 06EN003367 Rev. D
Installing Flow Element
Insertion Depth
The ST50 is available with both Teflon compression fitting ferrules and metal ferrules. While the Teflon ferrule configuration can
be readjusted, it is possible that over tightening may result in permanent positioning or damage to the extension pipe and will make
future adjustment difficult. While Teflon provides for some adjustability, it has a lower process pressure rating and is not designed
for continuous adjustments. The metal ferrule version can only be tightened down once and it becomes permanently positioned.
The Ferrule type is indicated in the instrument part number displayed on the instrument tag. This can be cross referenced to the
ordering information sheet.
All flow meters have been calibrated with the flow element located at the centerline of the pipe and flow stream as indicated in
Figure D. Couplings and threadolets come in various dimensions. Proper installation requires that the element be measured with
consideration to process connection dimensions and pipe centerline. FCI recommends that the element be first installed in the line
with the compression fitting lightly tightened around the extension, then slowly move the pipe extension forward until the element is
at centerline as shown.
Warning: The element is shipped with a protective sleeve surrounding the flow element. After removing the sleeve,
take care to prevent the element from sliding through the compression fitting and contacting the opposing wall with
any force as it may cause damage to the element and potentially upset the calibration.
FLOW ELEMENT INSTALLATION & “U” LENGTH ADJUSTMENT
Figure D
Note: For proper performance, element shall be installed so that tip of probe is .25 inches [ 6mm] past pipe centerline. Instrument is
specifically calibrated for centerline referenced installation. Critical for line sizes 4" [ 25mm] and smaller.
Warning: On top mount installations, particularly, take care to prevent the element from sliding through the compres-
sion fitting and contacting the opposing wall with any force as it may cause damage to the element and potentially
upset the calibration.
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