3
Power-Flo Pumps & Systems • 877-24PUMPS • www.powerflopumps.com
Specifications
PFU31, PFU51, PFU71, PFU102
Submersible Fountain Pumps
MODEL
HP
Hz
Volts/
Ph
RPM Full Load
Amps
Locked
Rotor Amps
Winding Resistance
MAIN -- START
NEMA Start
Code
Cord
Type
Cord
Size
Cord
O.D.
PFU31
1/3
60
115/1 3450
8.0
21.0
1.4 -- 8.6
J
SOW
16/3 0.395
PFU51
1/2
60
115/1 3450
9.5
21.0
1.0 -- 6.5
E
SOW
16/3 0.395
PFU71
3/4
60
115/1 3450
12.0
28.0
0.57 -- 5.78
D
SOW
16/3 0.395
PFU102
1
60
230/1 3450
7.0
21.0
2.01 -- 7.32
E
SOW
16/3 0.395
Winding resistance ± 5% at terminal block. Rated operation at ± 10% voltage at motor
DISCHARGE
PFU31, 51, 71, 102
1-3/4” Outside Hose Connection,
1” NPT Inside Connection, 90° Rotation
LIQUID
TEMPERATURE
145°F (63°C) Continuous
VOLUTE
Brass
INTERMEDIATE
Brass
HOUSING TUBE
304 Stainless Steel
HOUSING END PIECE
Brass
SCREEN
304 Stainless Steel
PUMP SUPPORTS
304 Stainless Steel
IMPELLER
1/3 & 1/2HP - Four Vane, Open, Brass
3/4 & 1 HP - Six Vane Open, Brass
SHAFT
416 Stainless Steel
O-RINGS
Buna-N
HARDWARE
300 Series Stainless Steel
SEAL
Single Mechanical, Carbon/Ceramic/Buna-N
POWER CORD
12 Ft.
MOTOR END BEARING
Single Row, Ball, Oil Lubricated
PUMP END BEARING
Single Row, Ball, Oil Lubricated
MOTOR
Oil Filled, Squirrel Cage Induction,
NEMA B Design, Class H Insulation
SINGLE PHASE
Permanent Split Capacitor (PSC),
Includes Overload Protection in Motor;
Trip Off Temp. 248°F (120°C)
The design of the suction chamber keeps motor 2/3 submerged at all times for
cool operation.
Vacuum Pressure Impregnation
“VPI” Sealed Insulation System
VPI motor enhancement system was developed to
greatly extend the winding life expectancy of an electric
motor. The motor stator is loaded into a pressure vessel
and immersed in the specialty selected varnish. All
gas pockets located within the stator are evacuated
under vacuum. The varnish is drawn into the stator
core, completely occupying all voids in the winding.
Following a series of processes, ending in a controlled
bake, the winding is 100% impregnated and sealed.
VPI is greatly superior to the “dip and bake” method
which may provide only 50% to 70% of effective
insulation leaving voids and air pockets. VPI provides
100% solid mass structure which provides the greatest
mechanical strength and a cooler running motor due to
superior heat dissipation.
