Rosemount 1195 - Page 6

June 2016
6
Quick Start Guide
(0.5 d to d over a length of d to 2 d)
Figure 8. Ball/Gate Valve Fully Open
Table 1. Straight Run Requirements (in Pipe Diameters)
β
(1)
1. Interpolation of intermediate β values can be used.
Figure 3
upstream
(U)
Figure 4
upstream
(U)
Figure 5
upstream
(U)
Figure 6
upstream
(U)
Figure 7
upstream
(U)
Figure 8
upstream
(U)
Figures 3–8
(2)
On downstream
(D)
2.
All straight lengths are expressed as multiples of the pipe inside diameter (d) and shall be measured from the upstream face of
orifice plate.
0.20 20 24 25 30 22 22 10
0.40 20 25 27 31 22 22 10
0.50 20 25 28 33 23 23 10
0.60 20 27 31 37 25 25 10
0.70 23 32 35 42 28 28 10
0.75 25 35 38 45 30 30 10
U D
00825-0100-4686 EA.fm Page 6 Friday, June 17, 2016 4:39 PM