AFLOWT UF Series - Page 19

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Fig.D.2. Design of type B flow straightening vane.
3. Hole marking in straightening vanes is shown in Table D.1.
Table D.1. Coordinates of the holes in straightening vanes of A and B type
(D – pipeline internal diameter)
Item
No.
X axis
Y axis
1
0
0
2
0
0.142D
3
0
0.283D
4
0
0.423D
5
0.129D
0.078D
6
0.134D
0.225D
7
0.156D
0.381D
8
0.252D
0
9
0.255D
0.146D
10
0.288D
0.288D
11
0.396D
0
12
0.400D
0.151D
4. The straightening vane is installed in the pipeline at a distance of 12
pipeline’s DN from the last source of hydraulic resistance with respect
to the flow direction. When installing the straightening vane, the length
of a straight run before the PEA is determined as the distance from the
source of hydraulic resistance to the PEA.
im_uf-5xx_d_cut_eng.doc2.0