Rice Lake Weigh Modules/Mount Assemblies - Manual (Page 59)

3-7
VESSEL ATTACHMENTS Piping
Do not support pipes on a structure which
may deflect independently of the vessel. Do
support pipes from the vessel’s support struc-
ture so that the support point moves with the
vessel, thus reducing the relative deflection.
Do not attach all pipes to the same side of the
vessel. Arrange them symmetrically around
its diameter, as far as possible.
When attaching pipes to a vessel partially
mounted on flexures, extra care must be
exercised to avoid side forces induced by
thermal expansion/contraction of the pipes.
Use flexible hose, bellows, or a loop, and
attach the pipes relative to the load cells/
flexures, as shown, to minimize the transfer
of weight from the flexures to the cells or
vice versa.
With horizontal vessels partially mounted
on flexures, do not attach pipes at the live
end. Attach pipes over the flexures if pos-
sible, since any vertical forces exerted there
are not “seen” by the load cells.
Fill pipes for liquids should enter horizontally
so that impingement of in-flight material has
minimal effect on the weight reading.
INCORRECT CORRECT
Table 2
PIPING GUIDELINES
MOUNT FLEXURE
MOUNT FLEXURE
LOAD CELLS
FLEXURES