3
1
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply re
-
move the valve casing from the crankcase and rotate the pumps 180 degrees to the desired
position. Be certain to rotate the seal case (item #20) as well, so that the weep holes are
down at the six o’clock
position. Exchange the oil fill and the oil drain plugs, also. Refer to
the repair instructions as necessary for the proper assembly sequence.
HORSEPOWER RATINGS:
The rating shown are the power
requirements for the
pump. Gas
engine power outputs must be
approximately twice the pump
power requirements shown above.
We recommend a 1.15 service fac-
tor be specified when selecting an
electric motor as the power source.
To compute specific pump horse-
power requirements, use the follow-
ing formula:
HP = (GPM X PSI) / 1450
Consult the factory for special requirements that must be met if the
pump is to operate beyond one or more of the limits specified above.
SPECIAL NOTE:
The theoretical gallons per revolution
(gal/rev) is 0.00883. To find specific
outputs at various RPM, use the formula:
GPM = 0.00883 x RPM
U.S.
(Metric)
Volume
.......................................................................
Up to 12.8 GPM
............................
(48.4 LPM)
Discharge Pressure ..................................................
Up to 2200 PSI
................................
(150 bar)
Power Required
.........................................................
19.2 BHP
...........................................
14.3 kW
Inlet Pressure ............................................................
-4.35 to 145 PSI
......................
(-0.3 to 10 bar)
Stroke ........................................................................
0.945”
.................................................
(24mm)
Crankshaft Speed
....................................................................................................
Up to 1450 RPM
Plunger Diameter.......................................................
0.98”
...................................................
(25mm)
Temperature of Pumped Fluids
.................................
Up to 160
o
F
.......................................
(70
o
C)
Inlet Ports ..........................................................................................................................
(2) 1” BSP
Discharge Ports ..............................................................................................................
(2) 3/4” BSP
Shaft Rotation
....................................................................................
Top of pulley towards fluid end
Crankshaft Diameter
..................................................
1.1”
.....................................................
(28mm)
Key Width
..................................................................
0.315”
...................................................
(8mm)
Shaft Mounting
................................................................................................................
Either side
1
Weight .......................................................................
38.3 lbs.
............................................
(17.4 kg)
Crankcase Capacity
..................................................
30.4 fl.oz.
.......................................
(0.9 liters)
Volumetric Efficiency @ 1450
...................................................................................................
(0.95)
Mechanical Efficiency @ 1450
.................................................................................................
(0.86)
NPSHR
...........................................................................
30.5 ft. of head
............................
9.3 mWs
Specifications
Model P420A-5100
P420A-5100 Horsepower Requirements
RPM GPM
1000
PSI
1500
PSI
1700
PSI
2200
PSI
785
6.9
4.8
7.1
8.1
10.5
900
7.9
5.4
8.2
9.3
12.0
1010
8.9
6.1
9.2
10.4
13.5
1120
9.9
6.8
10.2
11.6
15.0
1240 10.9
7.5
11.3
12.8
16.5
1450 12.8
9.0
13.2
15.1
19.4
