Specifications; Special Note - Giant P400 Series Operating Instructions/ Repair And Service Manual

Models P420A, P420A-0011, P420A-0021
Volume ..........................................................Up to 12.8 GPM ............. (48.4 L/min)
Discharge Pressure .....................................Up to 2175 PSI ............... (150 bar)
Maximum Power Consumption .....................19.2 BHP ......................... (14.3 kW)
Inlet Pressure ................................................-4.35 to 145 PSI .............. (-.3 to 10 bar)
Stroke ...........................................................0.945" .............................. (24mm)
RPM ....................................................................................................... Up to 1450 RPM
Plunger Diameter ..........................................0.98" ................................ (25mm)
Temperature of Pumped Fluids .....................Up to 160
Inlet Ports ............................................................................................... (2) 1" NPT
Discharge Ports ..................................................................................... (2) 3/4" NPT
Shaft Rotation ...............................................Top of pulley towards fluid end
Crankshaft Diameter .....................................1.1" .................................. (28mm)
Key Width .....................................................0.315" .............................. (8mm)
Shaft Mounting ....................................................................................... Either side
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 foot of Head ............. (9.3 meters of Head)
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.
NOTES:
In order to drive the pump from the side opposite the present shaft exten-
sion, 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.
P420 HORSEPOWER REQUIREMENTS
RPM GPM 1000 PSI 1500 PSI 1700 PSI 2175 PSI
785 6.9 4.8
900 7.9 5.4
1010 8.9 6.1
1120 9.9 6.8
1240 10.9 7.5
1450 12.8 8.8

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

Specifications

U.S.
7.1 8.1 10.4
8.2 9.3 11.9
9.2 10.4 13.4
10.2 11.6 14.9
11.3 12.8 16.4
13.2 15.0 19.2
3
(Metric)
F ................... (70 C)
o o
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 horsepower requirements,
use the following formula:
HP = (GPM X PSI) / 1450
1