Question

HEAD TOTAL HEAD FT Model 3U Performance Curves 3U 50-160-1-15HP Flow 5. Water is being pumped with a flow rate of 400 L/min in the given piping system. If the water is at 80°C and has a $h_s$=5.0m, find the available NPSH and confirm this is adequate using the performance curves at the back of the exam. For the reducer L/D=25, the 2%-in pipe is 1.1m long and the elbows are standard. Take all losses into account. (30 points) 101.1 (Hinged disc type) 3U/3UB EBARA Stainless Steel Centrifugal Pumps Synchronous Speed: 3450 RPM Size: 2 x 2 \times x 6 CURVE NO.: 35-C615-6009 2" DISCH. 2-1/2" SUC. IMP. DIA 6"(150mm) 1.00 SPEC. GRAVITY NPSH REQ PUMP EFF. T.D.H SHAFT POWER CAPACITY USGPM 100 200 300 400 CAPACITY 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 SHAFT POWER HP SHAFT POWER KW SHAFT POWER MNPSH

          HEAD
TOTAL HEAD
FT
Model 3U
Performance Curves
3U 50-160-1-15HP
Flow
5. Water is being pumped with a flow rate of 400 L/min in the given piping system. If the water is
at 80°C and has a $h_s$=5.0m, find the available NPSH and confirm this is adequate using the
performance curves at the back of the exam. For the reducer L/D=25, the 2%-in pipe is 1.1m
long and the elbows are standard. Take all losses into account. (30 points)
101.1
(Hinged disc type)
3U/3UB
EBARA Stainless Steel Centrifugal Pumps
Synchronous Speed: 3450 RPM
Size: 2 x 2 \times x 6
CURVE NO.: 35-C615-6009
2" DISCH. 2-1/2" SUC.
IMP. DIA 6"(150mm)
1.00 SPEC. GRAVITY
NPSH REQ
PUMP EFF.
T.D.H
SHAFT POWER
CAPACITY
USGPM
100
200
300
400
CAPACITY 0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
SHAFT POWER
HP SHAFT POWER
KW SHAFT POWER
MNPSH

HEAD
TOTAL HEAD
FT
Model 3U
Performance Curves
3U 50-160-1-15HP
Flow
5. Water is being pumped with a flow rate of 400 L/min in the given piping system. If the water is
at 80°C and has a hs=5.0m, find the available NPSH and confirm this is adequate using the
performance curves at the back of the exam. For the reducer L/D=25, the 2%-in pipe is 1.1m
long and the elbows are standard. Take all losses into account. (30 points)
101.1
(Hinged disc type)
3U/3UB
EBARA Stainless Steel Centrifugal Pumps
Synchronous Speed: 3450 RPM
Size: 2 x 2 ×x 6
CURVE NO.: 35-C615-6009
2" DISCH. 2-1/2" SUC.
IMP. DIA 6"(150mm)
1.00 SPEC. GRAVITY
NPSH REQ
PUMP EFF.
T.D.H
SHAFT POWER
CAPACITY
USGPM
100
200
300
400
CAPACITY 0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
SHAFT POWER
HP SHAFT POWER
KW SHAFT POWER
MNPSH

Added by Daniel C.

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