Viking Pump TSM275: AL-05 - Manual (Page 12)

Page 12
• The length of suction piping is kept to the absolute minimum.
• The minimum number of bends, tees and pipework restrictions are used.
• Calculations to determine system NPSHa are carried out for the worst condition
see below.
Should advice on pump or system NPSH characteristics be required contact the
factory or their authorized distributor.
10
.0
M
et
er
s
(3
2.
8
F
ee
t)
W
at
er
C
ol
um
n
Suction Lift
Or Vacuum
Atmospheric
Pressure
Suction
Head
NPSH
Available
Suction Line
Friction Loss
Vapour
Pressure
NPSH
Available
Suction Line
Friction Loss
Vapour
Pressure
For Suction Lift
Or Vacuum
Conditions.
For Conditions
With Positive
Suction Head.
Atmospheric
Vacuum