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Reference Manual
00809-0100-4772, Rev FA
Installation
March 2016
Installation
Figure 3-1. Lifting Supports
3.4.2 Flow direction
Mount the meter body so the arrow, shown on the meter body, points in the direction of
flow.
3.4.3 Upstream/downstream piping
Allow enough straight pipe both upstream and downstream of the meter body to ensure a
non-skewed, symmetrical profile. Ideally, the vortex meter should be installed with a
minimum of 35 straight pipe diameters (D) upstream and 10 straight pipe diameters (D)
downstream as shown in Figure 3-2. However, it can be installed with a minimum of 10
straight pipe diameters upstream and 5 straight pipe diameters downstream as shown in
Figure 3-3.
Rated accuracy is based on the number of pipe diameters from an upstream disturbance.
An additional 0.5% shift in K-factor may be introduced between 10 D and 35 D, depending
on disturbance.
For more information on installation effects, see Technical Data Sheet 00816-0100-3250.
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