FCI ST75 - Flow Element Installation

ST75/ST75V Mass Flow Meter Fluid Components International LLC
This page is subject to proprietary rights statement on last page 3 06EN003368 Rev. G
FCI ow meters may be installed with less than the recommended straight run, but at the risk of limiting performance. FCI offers
VORTAB ow conditioners for use in applications that have signicant straight run limitations. FCI uses the AVAL application model-
ing software to predict meter performance in each installation. AVAL outputs are available to review prior to order placement and will
indicate performance expectations both with and without ow conditioning.
Flow Element Installation
Caution: The element is shipped installed in the tee, with the element specically oriented for inline installation. Do not
remove the sensing element from the tee section during installation as calibration can be adversely affected.
Process Connections
The ST75 is available in pipe tee congurations with NPT threads and tubing tees with a compression tting suitable to clamp down
on concentric smooth surface tubing. The pipe tee versions are standard 150# class rated tees suitable for service up to 150 PSIG at the
process temperature maximum of 250 °F (121 °C). The compression tting material offered in the tube type conguration is rated for
250 PSIG service.
Pipe Tee Installation: With pipe extensions properly cut to length and the appropriate sealing materials used on the threads, install ow
element section by slowly rotating the conguration until rmly secure on the pipe section. Complete by installing opposing end pipe
section using care to rmly secure the element assembly either in a top mount or side mount position.
Tube Tee Installation: Clean all mating surfaces of the tee tting, ferrules and the ow tube. Insert the ow tubing into the tee tting.
Make sure the tubing rests rmly in the tting counter bore seat. Tighten the nut on both ends of the tee by hand. Hold the tting body
steady with a backup wrench, tighten the tting nuts 1-1/4 turns, from hand tight baseline.
The ST75V is available in with ow tube congurations offering male and female NPT threads, ANSI anges and DIN anges. The ow
tube assemblies are rated for service up to 240 PSIG at the process temperature maximum of 250 °F (121 °C).
NPT Flow Tube Installation: With pipe extensions properly cut to length and the appropriate sealing materials used on the threads, install
ow element section by slowly rotating the conguration until rmly secure on the pipe section. Complete by installing opposing end
pipe section using care to rmly secure the element assembly either in a top mount or side mount position.
Flanged Installation: Clean all mating surfaces. Install appropriate sealing gasket between mating anges. Tighten ange mating hardware
to meet system sealing requiments.
See Appendix C for instrument outline dimensional details.