NOTES:
1
In order to drive the pump from the side opposite the present shaft
extension, simply remove 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 factor
be specified when selecting an
electric motor as the power source.
To compute specific pump horse
power requirements, use the
following 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 0.0089.
To find specific outputs at various RPM,
use the formula: GPM = 0.0089 x RPM
P420 HORSEPOWER
REQUIREMENTS
RPM GPM
1000
PSI
1500
PSI
1700
PSI
2000
PSI
785
7.0
4.8
7.2
8.2
9.6
900
8.0
5.5
8.3
9.4
11.0
1010
9.0
6.2
9.3
10.5 12.4
1120
9.9
6.9
10.3 11.7 13.7
1240 11.0
7.6
11.4 12.9 15.2
1460 13.0
8.9
13.4 15.2
Volume ........................................................................................................ Up to 13.0 GPM
Discharge Pressure ..................................................................................... Up to 2000 PSI (at 11 GPM)
Inlet Pressure .............................................................................................. Up to 140 PSI
Stroke .......................................................................................................... 24mm
RPM ............................................................................................................ Up to 1460 RPM
Plunger Diameter ........................................................................................ 25mm
Temperature of Pumped Fluids .................................................................. Up to 160
o
F
Inlet Ports .................................................................................................... (2) 1" BSPP
Discharge Ports ........................................................................................... (2) 3/4" BSPP
Shaft Rotation ................................................................................ Top of pulley towards fluid end
Crankshaft Diameter ................................................................................... 28mm
Key Width ................................................................................................... 8mm
Shaft Mounting ........................................................................................... Either side
1
Weight ......................................................................................................... 36lbs. 11oz.
Crankcase Capacity .................................................................................... 30fl.oz.
Volumetric Efficiency @ 1460 ................................................................... 0.95
Mechanical Efficiency @ 1460 .................................................................. 0.86
Specifications
Model P420A-3100/5100
P420A-3100/5100
HORSEPOWER REQUIREMENTS
