Npshr curves, Maximum static pressure vs. fluid temperature – Trebor REV6 User Manual
Page 10
REV6 OPERATION / MAINTENANCE MANUAL
10
CONTENTS
2.4.2 NPSHr Curves
Figure 4
– NPSHr Curves
2.4.3 Maximum Static Pressure vs. Fluid Temperature
Figure 5
– Maximum Static Pressure Allowed vs. Fluid Temperature
8000
7000
6000
5000
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
0
1
2
3
4
5
6
7
8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0
10
20
30
40
50
60
70
80
GPM
PS
I
ba
r
LPM
NPSHr Criteria ≡ The min. absolute inlet pressure
where the pump pressure is reduced by 3%
- Limitation is due to the axial limit of the
impeller
77
87
97
107
117
127
137
147
157
167
177
187
0
20
40
60
80
100
120
140
0
1
2
3
4
5
6
7
8
9
10
25
30
35
40
45
50
55
60
65
70
75
80
85
90
°F
PS
I
M
axi
m
u
m
Stat
ic
Pr
e
ssur
e
b
ar
°C
Fluid Temperature
Specific gravity = 1 g/cm
3
Viscosity = 1 cP
Liquid Temp.: 20°C