4. CONFIMRATIONI NOTES BEFORE THE INSTALLATION
1) Check the Tag No of Venturi Tube and whether it is a product installed
at the position.
2) There must not be any weld contour, projecting part, and so on. And it should be
checked whether there is any dent or scratch on the surface of Venturi Tube
before the installation.
3) The inside of piping should be smooth and clean. And there must not be any
foreign substances.
5. MATTERS THAT REQUIRE ATTENTION IN THE INSTALLATION
CAUTION
1) Venturi Tube Check the direction of Flow careful not to change the location to install.
2) Ensure that the inside surfaces of the pipes are smooth and clean and that the edge
preparations are in accordance with the welding procedure
CAUTION
3) Ensure that the flanges or weld-in Venturi Tube are concentric to the inside of the
pipeline and that the pressure tapping points are aligned as per the manufacturer's
or the contractor's drawing.
4) Ensure that all weld outlines are even. Take care to ensure that any protrusion inside
the pipe is kept to an absolute minimum.
For a flanged unit, any protrusion inside the pipe must be groud off and swept clean.
CAUTION
5) The tapping and any associated impulse piping must be clear prior to putting into service.
Check that there is no weld-spatter or any other blockages in the tapping holes and
associated impulse piping. If necessary, these can be cleared by rodding out or
flushing to remove any blockage. Observe any cleaning specification, for example,
oxygen/pharmaceutical service
6) For flanged units, tighten the bolts to the maximum torque given in the relevant
specifications. For weld-in units ensure that the pipe sections are concentric to the
inside of the pipeline
7) For weld-in units ensure that the weld profile is even and that there is no excessive
protrusion into the bore
INSTALLATION & OPERATION MANUAL
DOC.NO. : C-QIM-2731-F04
REV.0
WISE CONTROL
PAGE : 4/5
