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CENTRIFUGAL-PUMP.ORG
Concepts
A
Affinity laws
introduction to Affinity Laws
use and application
Air leak test
B
Best efficiency point
C
Cavitation
introduction to cavitation
impeller erosion
noise and damage
recirculation vs insufficient NPSHA
D
Destaging
Drawdown
E
Efficiency
best efficiency point
efficiency at high temperature
Entrained gas
Erosion
F
Flow
minimum continuous stable flow (MCSF)
Freewheeling centrifugal pumps
H
Head
definition
velocity head
Horsepower
Hydraulic re-rates
Hydrostatic test
Hydrostatic test pressure calculation
I
Impeller
erosion damage
minimum diameter
staggered vanes
trimming
L
Lateral analysis
Lubricant and vibration
M
Material test report (CMTR, PMI)
N
Net Positive Suction Head
Net positive suction head required (NPSHR)
Non-destructive examination (NDE)
O
Oil change frequency
P
Pump basics
introduction
types of pumps
horizontal vs vertical pumps
axial vs radial split case
parallel-series operation
more on parallel-series
self-priming
selection criteria for OH1, OH2
selection criteria for OH2, OH3, OH5
selection criteria for VH2, VH3, VH7
-
R
Radial thrust
Reverse osmosis
Rotation, wrong
S
Seismic analysis
Shaft deflection single volute pump
Shaft flexibility factor
Soft foot
Specific speed (S)
definition of specific speed
use of NS in pump selection
use of NS in hydraulic re-rates
use of NS in new pump design
Speed
maximum allowable speed
peripheral speed
speed torque curve
Stainless steel, rusting (staining) of
Start-up procedure
Storage
Suction lift
Suction piping arrangement
Suction specific speed
Sump design for vertical pumps
-
T
Temperature
temperature rise at normal operation
temperature rise at shut-off operation
warm-up procedure at high temperature service
thermal shock
conversion factors
Test
String test
Testing
U
Unbalance
V
Velocity
acceptable liquid velocity at pump nozzles
peripheral velocity
Vibration
introduction
Viscosity
W
Warm up procedure
Water hammer
A
Affinity laws
introduction to Affinity Laws
use and application
Air leak test
B
Best efficiency point
C
Cavitation
introduction to cavitation
impeller erosion
noise and damage
recirculation vs insufficient NPSHA
D
Destaging
Drawdown
E
Efficiency
best efficiency point
efficiency at high temperature
Entrained gas
Erosion
F
Flow
minimum continuous stable flow (MCSF)
Freewheeling centrifugal pumps
H
Head
definition
velocity head
Horsepower
Hydraulic re-rates
Hydrostatic test
Hydrostatic test pressure calculation
I
Impeller
erosion damage
minimum diameter
staggered vanes
trimming
L
Lateral analysis
Lubricant and vibration
M
Material test report (CMTR, PMI)
N
Net Positive Suction Head
Net positive suction head required (NPSHR)
Non-destructive examination (NDE)
O
Oil change frequency
P
Pump basics
introduction
types of pumps
horizontal vs vertical pumps
axial vs radial split case
parallel-series operation
more on parallel-series
self-priming
selection criteria for OH1, OH2
selection criteria for OH2, OH3, OH5
selection criteria for VH2, VH3, VH7
-
R
Radial thrust
Reverse osmosis
Rotation, wrong
S
Seismic analysis
Shaft deflection single volute pump
Shaft flexibility factor
Soft foot
Specific speed (S)
definition of specific speed
use of NS in pump selection
use of NS in hydraulic re-rates
use of NS in new pump design
Speed
maximum allowable speed
peripheral speed
speed torque curve
Stainless steel, rusting (staining) of
Start-up procedure
Storage
Suction lift
Suction piping arrangement
Suction specific speed
Sump design for vertical pumps
-
T
Temperature
temperature rise at normal operation
temperature rise at shut-off operation
warm-up procedure at high temperature service
thermal shock
conversion factors
Test
String test
Testing
U
Unbalance
V
Velocity
acceptable liquid velocity at pump nozzles
peripheral velocity
Vibration
introduction
Viscosity
W
Warm up procedure
Water hammer
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