User Guide

200
0.1
1
0.2
0.3
0.5
400
500
∆
p (psi)
G
(l/h)
(
gpm
)
10
2
3
5
20
4
0.4
1000 2000 5000
10000 20000
1 0.5 2 5 10 2
0
5
0
100 2
00
110
10
0.05
0.1
1
0.2
0.3
0.5
(psi) (bar)
10
2
3
5
20
0.01
0.1
0.02
0.03
0.05
1.0
0.2
0.3
0.5
0.4
4
0.04
0.4
46.00
20.00
10.00
9.00
7.00
5.00
2.00
1.50
1.00
0.70
0.50
0.20
(feet of
head)
0.05
3.00
0.30
0.11
0.003
0.005
25000 45000
3 00 4 00
Position
9
8
765
432
90000
1
1320100A 4 inch
Handwheel Position
4 inch 1 2 3 4 5 6 7 8 9 10
Cv 1.1 4.4 13 26 43 67 89 125 175 241
Correction for
liquids with different
densities
For fluids (typically glycol mixtures) with a specific gravity different from water
at 70°F (20°C) (S.G.=1.0), correct the value of the pressure drop ∆p read from
the hydraulic charts, for sizing the pump, by using the following:
- Δpactual = Δpchart x (S.G.’)glycol mix;
- variation in flow rate measurement remains within the specified accuracy
range (±10%) for glycol percentages up to 50%.
Example: 50% propylene glycol has a specific gravity of 1.0366 at 70˚
F (20˚ C). The flow rate for the 4 inch 132100A, handwheel position 10,
in the above chart of 100 gpm yields a
Δpchart of 0.16 psi. Correcting for
glycol in this example calculates as Δpactual = 0.16 x (1.0366) = 0.1659 psi.
7 8