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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.
Volume ................................................................................................... Up to 13.0 GPM (49 lm)
Discharge Pressure ................................................................................. Up to 2000 PSI (138 bar)
............................................................................................................... (at 11 GPM)
Inlet Pressure .......................................................................................... Up to 140 PSI (9.7 bar)
Stroke..................................................................................................... 24mm
RPM....................................................................................................... Up to 1460 RPM
Plunger Diameter.................................................................................... 25mm
Temperature of Pumped Fluids ............................................................... Up to 160
o
F (71
o
C)
Inlet Ports ............................................................................................... (2) 3/4" BSPP (P420A-5100)
Inlet Ports ............................................................................................... (2) 3/4" NPT (P420A-3100)
Discharge Ports ....................................................................................... (2) 3/4" BSPP (P420A-5100)
Discharge Ports ...................................................................................... (2) 3/4" NPT (P420A-3100)
Shaft Rotation.............................................................................Top of pulley towards fluid end
Crankshaft Diameter............................................................................... 28mm
Key Width .............................................................................................. 8mm
Shaft Mounting....................................................................................... Either side
1
Weight.................................................................................................... 36lbs. 11oz. (0.52 kg)
Crankcase Capacity ................................................................................ 30fl.oz. (0.89 liters)
Volumetric Efficiency @ 1460 ................................................................ 0.95
Mechanical Efficiency @ 1460 ............................................................... 0.86
Specifications
Model P420A-3100/5100
PUMP
PULLEY
MOTOR
PULLEY
RPM GPM
1000
PSI
1500
PSI
1700
PSI
2000
PSI
7.75 4.50
785 7.0 4.8 7.2 8.2 9.6
7.75 5.00
900 8.0 5.5 8.3 9.4 11.0
7.75 5.75
1010 9.0 6.2 9.3 10.5 12.4
7.75 6.00 1120
9.9 6.9 10.3 11.7 13.7
7.75 6.75 1240
11.0 7.6 11.4 12.9 15.2
7.75 7.75 1460
13.0 8.9 13.4 15.2
P420A-3100/5100 PULLEY SELECTION & HORSEPOWER
REQUIREMENTS
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1. Select GPM required, then select appropriate
motor and pump pulley from the same line.
2. The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
HORSEPOWER INFORMATION
Horsepower ratings shown are the power require-
ments for the pump. Gas engine power outputs must
be approximately twice the pump power require-
ments shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
GPM X PSI
=hp
1450